Effect of ingratiation on supervisor satisfaction through helping behavior: A moderated mediation model

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Muhammad Ali Asadullah

2016-10-01

Full Text Available Purpose: This research intends to investigate the mediating role of helping behavior in relationship between employee ingratiation and supervisor satisfaction across high and low levels of ingratiation behavior, and answers the questions: how, when and why ingratiation is effective. Design/methodology/approach: Data were collected through questionnaire surveys in hotel industry, and structural equation modelling was applied to analyze these data by using hypothetical-deductive approach. Findings: The results indicate that helping behavior is an important mediator of the relationship between ingratiation and supervisor satisfaction. Moreover, ingratiation is also a strong moderator of the relationship between helping behavior and supervisor satisfaction. This research concludes that employee ingratiation positively predicts helping behaviors, and consequently the supervisor satisfaction. Research limitations/implications: This study is not experimental in nature, but a cross-sectional design has been followed. Future research can focus on an experimental design by incorporating a time element, and the design and analysis should be nested since this study did not use multilevel analysis. Moreover, this study used only two forms of ingratiation for measuring employee ingratiation behavior. We suggest researchers to consider all four dimensions of ingratiation by using some distinct scales. Practical implications: This research explains mechanisms underlying supervisor-subordinate relationship, and contributes to organizational behavior research by answering the question; 'when and how ingratiation could be effective?' The findings of this study have important managerial implications, and provide future lines of research.  Social implications: The findings of this research demonstrate that ingratiation is an important tool for satisfying superiors if employees exhibit helping behaviors towards coworkers and supervisors. Particularly, new employees

The effect of individual factors on health behaviors among college students: the mediating effects of eHealth literacy.

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Hsu, WanChen; Chiang, ChiaHsun; Yang, ShuChing

2014-12-12

College students' health behavior is a topic that deserves attention. Individual factors and eHealth literacy may affect an individual's health behaviors. The integrative model of eHealth use (IMeHU) provides a parsimonious account of the connections among the digital divide, health care disparities, and the unequal distribution and use of communication technologies. However, few studies have explored the associations among individual factors, eHealth literacy, and health behaviors, and IMeHU has not been empirically investigated. This study examines the associations among individual factors, eHealth literacy, and health behaviors using IMeHU. The Health Behavior Scale is a 12-item instrument developed to measure college students' eating, exercise, and sleep behaviors. The eHealth Literacy Scale is a 12-item instrument designed to measure college students' functional, interactive, and critical eHealth literacy. A nationally representative sample of 525 valid college students in Taiwan was surveyed. A questionnaire was administered to collect background information about participants' health status, degree of health concern, major, and the frequency with which they engaged in health-related discussions. This study used Amos 6.0 to conduct a confirmatory factor analysis to identify the best measurement models for the eHealth Literacy Scale and the Health Behavior Scale. We then conducted a multiple regression analysis to examine the associations among individual factors, eHealth literacy, and health behaviors. Additionally, causal steps approach was used to explore indirect (mediating) effects and Sobel tests were used to test the significance of the mediating effects. The study found that perceptions of better health status (t520=2.14-6.12, PeHealth literacy and adoption of healthy eating, exercise, and sleep behaviors. Moreover, eHealth literacy played an intermediary role in the association between individual factors and health behaviors (Sobel test=2.09-2.72, Pe

The Effects of Satisfaction of Basic Psychological Needs at School on Children’s Prosocial Behavior and Antisocial Behavior: The Mediating Role of School Satisfaction

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Lili Tian

2018-04-01

Full Text Available Grounded in Basic Psychological Need Theory, we examined the direct effects of the satisfaction of three basic psychological needs at school (i.e., satisfaction of autonomy needs at school, satisfaction of relatedness needs at school, and satisfaction of competence needs at school on prosocial behavior and antisocial behavior as well as the mediation effects of school satisfaction on the relations between the satisfaction of three basic psychological needs at school and prosocial behavior as well as antisocial behavior. We employed a sample of 801 Chinese children (429 males; Mage = 9.47 in a three-wave longitudinal study, with each wave occurring 6 months apart. Direct and indirect effects were estimated by Structural Equation Modeling. Results indicated that: (1 Satisfaction of relatedness needs at school and competence needs at school, but not satisfaction of autonomy needs at school, displayed direct effects on prosocial behavior. Also, satisfaction of relatedness needs at school, but not satisfaction of autonomy needs at school or competence needs at school, displayed direct effects on antisocial behavior. (2 Both satisfaction of relatedness needs at school and competence needs at school displayed indirect effects on prosocial behavior and antisocial behavior via school satisfaction as a mediator. However, satisfaction of autonomy needs at school failed to have indirect effects on prosocial behavior or antisocial behavior via school satisfaction. These findings suggest differential predictors of children’s prosocial and antisocial behavior, supporting the separability of the two constructs. The findings also suggest developmental differences in need satisfaction, with the satisfaction of autonomy needs playing a relatively less important role in school-age children. We also discussed limitations and practical applications of the study.

Transforming Environmental Knowledge into Behavior: The Mediating Role of Environmental Emotions

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Carmi, Nurit; Arnon, Sara; Orion, Nir

2015-01-01

The present study was based on the premise that environmental knowledge can drive environmental behavior only if it arouses environmental emotions. Using a structural equations modeling approach, we tested the direct, as well as the indirect (mediated) effects of knowledge on behavior and assessed the mediating role of environmental emotions. We…

Gang Membership, School Violence, and the Mediating Effects of Risk and Protective Behaviors in California High Schools

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Estrada, Joey Nuñez, Jr.; Gilreath, Tamika D.; Astor, Ron Avi; Benbenishty, Rami

2014-01-01

There is insufficient empirical evidence exploring associations between gang membership and school violence behaviors. Using a sample of 272,863 high school students, this study employs a structural equation model to examine how school risk and protective behaviors and attitudes mediate effects of gang members' involvement with school violence…

Workplace ostracism And workplace behaviors: A moderated mediation model of perceived stress and psychological empowerment.

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Chung, Yang Woon

2018-05-01

Workplace ostracism research has examined numerous underlying mechanisms to understand the link between workplace ostracism and behavioral outcomes. Ostracism has been suggested to be an interpersonal stressor; however, research has not investigated workplace ostracism from a stress perspective. Therefore, the study investigated the mediating effect of perceived stress for the relationships between workplace ostracism and helping behavior, voicing behavior, and task performance. The study also investigated the moderating effect of psychological empowerment for the relationships between perceived stress and behavioral outcomes. The study design was a three-wave self-reported questionnaire. The study sampled 225 full-time employees in South Korea and regression analyses with bootstrapping were conducted to test the moderated mediation models. The bootstrapped 95% CI around the indirect effects did not contain zero; therefore, perceived stress mediated the relationship between workplace ostracism and helping behavior (-.06), voicing behavior (-.07), and task performance (-.07). Further, the moderated mediation analyses found perceived stress mediated the relationships between workplace ostracism and behavioral outcomes only when individuals perceived low levels of psychological empowerment. The findings suggest that workplace ostracism is a stressor and psychological empowerment can mitigate the negative effects of ostracism on behavioral outcomes.

The mediational role of parenting on the longitudinal relation between child personality and externalizing behavior.

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Prinzie, Peter; van der Sluis, Cathy M; de Haan, Amaranta D; Deković, Maja

2010-08-01

Building on prior cross-sectional work, this longitudinal study evaluated the proposition that maternal and paternal overreactive and authoritative parenting mediates the effect of child personality characteristics on externalizing behavior. Data from the Flemish Study on Parenting, Personality, and Problem Behavior were used in a moderated mediation analysis (N=434). Teachers rated children's Big Five characteristics, fathers and mothers rated their parenting, and 3 years later, children rated their externalizing behavior. Mediational analysis revealed both direct and indirect effects. Higher levels of Extraversion and lower levels of Benevolence were related directly to higher levels of child externalizing behavior. Higher levels of paternal authoritative parenting and lower levels of maternal overreactivity were related to lower scores on externalizing behavior. In addition, the relation between Benevolence, Emotional Stability, and externalizing behavior was partially mediated by parental overreactivity. Conscientiousness had an indirect effect on externalizing behavior through paternal authoritative parenting. Relations were not moderated by child gender. This study is of theoretical interest because the results demonstrate that parenting is a mediating mechanism that accounts for associations between personality and externalizing behavior.

Behavioral and Nondirective Guided Self-Help for Parents of Children with Externalizing Behavior: Mediating Mechanisms in a Head-To-Head Comparison.

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Katzmann, Josepha; Hautmann, Christopher; Greimel, Lisa; Imort, Stephanie; Pinior, Julia; Scholz, Kristin; Döpfner, Manfred

2017-05-01

Parent training (PT) delivered as a guided self-help intervention may be a cost- and time-effective intervention in the treatment of children with externalizing disorders. In face-to-face PT, parenting strategies have repeatedly been identified as mediating mechanisms for the decrease of children's problem behavior. Few studies have examined possible mediating effects in guided self-help interventions for parents. The present study aimed to investigate possible mediating variables of a behaviorally oriented guided self-help program for parents of children with externalizing problems compared to a nondirective intervention in a clinical sample. A sample of 110 parents of children with externalizing disorders (80 % boys) were randomized to either a behaviorally oriented or a nondirective guided self-help program. Four putative mediating variables were examined simultaneously in a multiple mediation model using structural equation modelling. The outcomes were child symptoms of ADHD and ODD as well as child externalizing problems, assessed at posttreatment. Analyses showed a significant indirect effect for dysfunctional parental attributions in favor of the group receiving the behavioral program, and significant effects of the behavioral program on positive and negative parenting and parental self-efficacy, compared to the nondirective intervention. Our results indicate that a decrease of dysfunctional parental attributions leads to a decrease of child externalizing problems when parents take part in a behaviorally oriented guided self-help program. However, none of the putative mediating variables could explain the decrease in child externalizing behavior problems in the nondirective group. A change in dysfunctional parental attributions should be considered as a possible mediator in the context of PT.

The Effect of The Locus of Control on Organizational Citizenship Behavior The Mediating Role Perceived Organizationel Support : Case Study of A University

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Güçel, Cem; Tokmak, İsmail; Turgut, Hakan

2012-01-01

The aim of this study is to examine the effects of locus of control on organizational citizenship behaviors and the mediating effect of the perceived organizational support. For this aim, firstly, the locus of control, then organizational citizenship behaviors and, finally, the mediating effect of the perceived organizational support are explained. In the application part, a questionnaire including the measures of the locus of control, organizational support and organization...

Type D personality and coronary atherosclerotic plaque vulnerability: The potential mediating effect of health behavior.

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Cheng, Fangman; Lin, Ping; Wang, Yini; Liu, Guojie; Li, Ling; Yu, Huai; Yu, Bo; Zhao, Zhenjuan; Gao, Xueqin

2018-05-01

The association between type D personality and coronary plaque vulnerability has been suggested. The objective of the study was to evaluate the potential mediating effects of health behavior on the association between type D personality and plaque vulnerability in coronary artery disease (CAD) patients. A total of 319 CAD patients were assessed for type D personality and health behavior via self-administered questionnaires. The plaque vulnerability, evaluated according to characteristics, accompaniment, and outcomes of plaque, was assessed by optical coherence tomography. Regression analysis showed that type D personality was independently associated with lipid plaque (odds ratio [OR] = 2.387, p = 0.001), thin cap fibroatheroma (TCFA) (OR = 2.366, p = 0.001), rupture (OR = 2.153, p = 0.002), and lipid arc (β = -0.291, p vulnerability. Psychological stress mediated the relationship between type D and lipid plaque (p = 0.030), TCFA (p = 0.034), and rupture (p = 0.013). Living habits significantly mediated the relationship between type D and lipid plaque (p = 0.028), TCFA (p = 0.036), but not rupture (p = 0.066). Participating in activities was not a significant mediator of the relationship between type D personality and lipid plaque (p = 0.115), TCFA (p = 0.115), or rupture (p = 0.077). Health behaviors (psychological stress and living habits) may be mediators of the association between type D personality and plaque vulnerability. Copyright © 2018 Elsevier Inc. All rights reserved.

THE MEDIATING ROLE OF ORGANIZATIONAL TRUST IN THE EFFECT OF PERCEIVED ORGANIZATIONAL SUPPORT ON ORGANIZATIONAL CITIZENSHIP BEHAVIOR

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Ozan BÜYÜKYILMAZ; Yahya FİDAN

2017-01-01

This study investigates direct and indirect relationships between perceived organizational support, organizational trust and organizational citizenship behavior. The aim of the study is to determine the effect of employee perceptions of organizational support on the tendency to exhibit organizational citizenship behavior and to determine the mediating role of perceived trust in perceived organizational support and organizational citizenship behavior relationship. The data used in the study we...

The Effect of Psychological Suzhi on Problem Behaviors in Chinese Adolescents: The Mediating Role of Subjective Social Status and Self-esteem.

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Liu, Guangzeng; Zhang, Dajun; Pan, Yangu; Ma, Yuanxiao; Lu, Xingyue

2017-01-01

In this study, we examined subjective social status (SSS) and self-esteem as potential mediators between the association of psychological suzhi and problem behaviors in a sample of 1271 Chinese adolescents (44.5% male, grades 7-12). The results showed that SSS and self-esteem were fully mediating the relationship between psychological suzhi and problem behaviors. Moreover, the indirect effect was stronger via self-esteem than via SSS. These findings perhaps provide insight into the preliminary effect that SSS and self-esteem underlie psychological suzhi 's effect on adolescents' problem behaviors, and also are important in helping school-teachers and administrators to develop a better understanding of problem behaviors in their schools as a pre-requisite to the development of more effective behaviors management practices from the perspective of psychological suzhi. Implications and limitations in the present study have also been discussed.

Mediators and moderators of long-term effects of violent video games on aggressive behavior: practice, thinking, and action.

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Gentile, Douglas A; Li, Dongdong; Khoo, Angeline; Prot, Sara; Anderson, Craig A

2014-05-01

Although several longitudinal studies have demonstrated an effect of violent video game play on later aggressive behavior, little is known about the psychological mediators and moderators of the effect. To determine whether cognitive and/or emotional variables mediate the effect of violent video game play on aggression and whether the effect is moderated by age, sex, prior aggressiveness, or parental monitoring. Three-year longitudinal panel study. A total of 3034 children and adolescents from 6 primary and 6 secondary schools in Singapore (73% male) were surveyed annually. Children were eligible for inclusion if they attended one of the 12 selected schools, 3 of which were boys' schools. At the beginning of the study, participants were in third, fourth, seventh, and eighth grades, with a mean (SD) age of 11.2 (2.1) years (range, 8-17 years). Study participation was 99% in year 1. The final outcome measure was aggressive behavior, with aggressive cognitions (normative beliefs about aggression, hostile attribution bias, aggressive fantasizing) and empathy as potential mediators. Longitudinal latent growth curve modeling demonstrated that the effects of violent video game play are mediated primarily by aggressive cognitions. This effect is not moderated by sex, prior aggressiveness, or parental monitoring and is only slightly moderated by age, as younger children had a larger increase in initial aggressive cognition related to initial violent game play at the beginning of the study than older children. Model fit was excellent for all models. Given that more than 90% of youths play video games, understanding the psychological mechanisms by which they can influence behaviors is important for parents and pediatricians and for designing interventions to enhance or mitigate the effects.

The Effect of Psychological Suzhi on Problem Behaviors in Chinese Adolescents: The Mediating Role of Subjective Social Status and Self-esteem

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Guangzeng Liu

2017-08-01

Full Text Available In this study, we examined subjective social status (SSS and self-esteem as potential mediators between the association of psychological suzhi and problem behaviors in a sample of 1271 Chinese adolescents (44.5% male, grades 7–12. The results showed that SSS and self-esteem were fully mediating the relationship between psychological suzhi and problem behaviors. Moreover, the indirect effect was stronger via self-esteem than via SSS. These findings perhaps provide insight into the preliminary effect that SSS and self-esteem underlie psychological suzhi’s effect on adolescents’ problem behaviors, and also are important in helping school-teachers and administrators to develop a better understanding of problem behaviors in their schools as a pre-requisite to the development of more effective behaviors management practices from the perspective of psychological suzhi. Implications and limitations in the present study have also been discussed.

Peer Rejection and Internalizing Behavior: The Mediating Role of Peer Victimization in Preschool.

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Metin Aslan, Özge

2018-05-23

The author examined the relationship among peer rejection, peer victimization, and internalizing behaviors. The author hypothesized that physical and relational victimization would have a different indirect effect on the relationship between peer rejection and internalizing behaviors. Participants were 94 preschool children (37 girls; average age 49.97 months) from two university preschools located in the northern part of the United States. The results indicated that internalizing behaviors predicted the mediating variables only regarding relational victimization. Relational victimization indirectly affected the association between peer rejection and internalizing behaviors. The study provides evidence of the mediating effect of victimization behaviors on the relationship among peer rejection, victimization, and internalizing behaviors.

[The mediating role of organizational citizenship behavior between organizational justice and organizational effectiveness in nursing organizations].

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Park, Wall Yun; Yoon, Sook Hee

2009-04-01

This study was a secondary analysis to verify the mediating role of organizational citizenship behavior (OCB) between organizational justice (OJ) and organizational effectiveness (OE) in nursing organizations. The RN-BSNs and their colleagues in Seoul and Busan were subjects. The data was collected for 20 days between September 13 and October 2, 2004. Two hundred eighty three data sets were used for the final analysis. The fitness of models were tested using AMOS 5. The fitness of hypothetical model was moderate. Procedural Justice (PJ), Interaction Justice (IJ) and Distributive Justice (DJ) had direct effects on Job Satisfaction (JS), Organizational Commitment (OC) and Turnover Intention (TI) in OE, and indirect effects on JS, OC and TI mediated by OCB. The modified model improved with ideal fitness showed the causal relations among OE. In modified model, PJ, IJ and DJ had direct positive effects on OCB and JS and OC in OE, and indirect effects on JS and OC mediated by OCB. JS and OC in OE had a direct negative effect on TI. OCB mediated the relationship between OJ and OE, so the nursing managers should enhance OCB of the nurses in order to improve OE.

The Effectiveness of a Cross-Setting Complementary Staff- and Parent-Mediated Early Intensive Behavioral Intervention for Young Children with ASD

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Fava, Leonardo; Strauss, Kristin; Valeri, Giovanni; D'Elia, Lidia; Arima, Serena; Vicari, Stefano

2011-01-01

We compared the effects of Early Intensive Behavioral Intervention (EIBI) and eclectic intervention in children with ASD on autism severity, developmental performance, adaptive behavior, language skills and challenging behaviors. Twelve children received cross-setting staff- and parent-mediated EIBI of centre-based one-to-one and play sessions as…

The Effect of Education Level on Psychological Empowerment and Burnout-The Mediating Role of Workplace Learning Behaviors

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Sarit Rashkovits; Yael Livne

2013-01-01

The study investigates the relationship between education level, workplace learning behaviors, psychological empowerment and burnout in a sample of 191 teachers. We hypothesized that education level will positively affect psychological state of increased empowerment and decreased burnout, and we purposed that these effects will be mediated by workplace learning behaviors. We used multiple regression analyses to test the model that included also the 6 following control var...

Adolescent-Parent Attachment and Externalizing Behavior: The Mediating Role of Individual and Social Factors.

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de Vries, Sanne L A; Hoeve, Machteld; Stams, Geert Jan J M; Asscher, Jessica J

2016-02-01

The aim of this study was to test whether the associations between adolescent-parent attachment and externalizing problem behavior of adolescents were mediated by adolescent cognitive distortions, self-esteem, parental monitoring and association with deviant peers. A total of 102 adolescents (71 % male; aged 12-19 years) at risk for developing delinquent behaviors reported on attachment, parental monitoring, aggressive and delinquent behavior and peers. Mediation effects were tested by using structural equation modeling. Different pathways were found depending on the type of externalizing behavior. The association between attachment and direct and indirect aggressive behavior was mediated by cognitive distortions. The relation between attachment and delinquency was mediated by deviant peers and parental monitoring. We argue that clinical practice should focus on the attachment relationship between adolescent and parents in order to positively affect risk and protective factors for adolescents' aggressive and delinquent behavior.

The mediating effect of mindful non-reactivity in exposure-based cognitive behavior therapy for severe health anxiety.

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Hedman, Erik; Hesser, Hugo; Andersson, Erik; Axelsson, Erland; Ljótsson, Brjánn

2017-08-01

Exposure-based cognitive behavior therapy (CBT) has been shown to be effective in the treatment of severe health anxiety, but little is known about mediators of treatment effect. The aim of the present study was to investigate mindful non-reactivity as a putative mediator of health anxiety outcome using data from a large scale randomized controlled trial. We assessed mindful non-reactivity using the Five Facets Mindfulness Questionnaire-Non-Reactivity scale (FFMQ-NR) and health anxiety with the Short Health Anxiety Inventory (SHAI). Participants with severe health anxiety (N=158) were randomized to internet-delivered exposure-based CBT or behavioral stress management (BSM) and throughout the treatment, both the mediator and outcome were measured weekly. As previously reported, exposure-based CBT was more effective than BSM in reducing health anxiety. In the present study, latent process growth modeling showed that treatment condition had a significant effect on the FFMQ-NR growth trajectory (α-path), estimate=0.18, 95% CI [0.04, 0.32], p=.015, indicating a larger increase in mindful non-reactivity among participants receiving exposure-based CBT compared to the BSM group. The FFMQ-NR growth trajectory was significantly correlated with the SHAI trajectory (β-path estimate=-1.82, 95% CI [-2.15, -1.48], panxiety. Copyright © 2017 Elsevier Ltd. All rights reserved.

Cognitive Reappraisal Self-Efficacy Mediates the Effects of Individual Cognitive-Behavioral Therapy for Social Anxiety Disorder

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Goldin, Philippe R.; Ziv, Michal; Jazaieri, Hooria; Werner, Kelly; Kraemer, Helena; Heimberg, Richard G.; Gross, James J.

2012-01-01

Objective: To examine whether changes in cognitive reappraisal self-efficacy (CR-SE) mediate the effects of individually administered cognitive-behavioral therapy (I-CBT) for social anxiety disorder (SAD) on severity of social anxiety symptoms. Method: A randomized controlled trial in which 75 adult patients (21-55 years of age; 53% male; 57%…

The Effect of Psychological Suzhi on Problem Behaviors in Chinese Adolescents: The Mediating Role of Subjective Social Status and Self-esteem

OpenAIRE

Liu, Guangzeng; Zhang, Dajun; Pan, Yangu; Ma, Yuanxiao; Lu, Xingyue

2017-01-01

In this study, we examined subjective social status (SSS) and self-esteem as potential mediators between the association of psychological suzhi and problem behaviors in a sample of 1271 Chinese adolescents (44.5% male, grades 7–12). The results showed that SSS and self-esteem were fully mediating the relationship between psychological suzhi and problem behaviors. Moreover, the indirect effect was stronger via self-esteem than via SSS. These findings perhaps provide insight into the preliminar...

Are behavioral effects of early experience mediated by oxytocin?

Directory of Open Access Journals (Sweden)

Karen Lisa Bales

2011-05-01

Full Text Available Early experiences can alter adaptive emotional responses necessary for social behavior as well as physiological reactivity in the face of challenge. In the highly social prairie vole (Microtus ochrogaster, manipulations in early life or hormonal treatments specifically targeted at the neuropeptides oxytocin (OT and arginine vasopressin (AVP, have long-lasting, often sexually-dimorphic, consequences for social behavior. Here we examine the hypothesis that behavioral changes associated with differential early experience, in this case handling the family during the first week of life, may be mediated by changes in OT or AVP or their brain receptors. Four early treatment groups were used, differing only in the amount of manipulation received during the first week of life. MAN1 animals were handled once on post-natal day 1; MAN1 treatment produces a pattern of behavior usually considered typical of this species, against which other groups were compared. MAN 1-7 animals were handled once a day for post-natal days 1-7, MAN 7 animals were handled once on post-natal day 7, and MAN0 animals received no handling during the first week of life. When tested following weaning, males in groups that had received manipulation during the first few days of life (MAN1 and MAN1-7 displayed higher alloparenting than other groups. Neuroendocrine measures, including OT receptor binding and OT and AVP immunoreactivity, varied by early treatment. In brain areas including the nucleus accumbens, bed nucleus of stria terminalis and lateral septum, MAN0 females showed increased OT receptor binding. MAN1 animals also displayed higher numbers of immunoreactive OT cell bodies in the supraoptic nucleus. Taken together these findings support the broader hypothesis that experiences in the first few days of life, mediated in part by sexually-dimorphic changes in neuropeptides, especially in the receptor for OT, may have adaptive consequences for sociality and emotion regulation.

Father's and mother's perceptions of parenting styles as mediators of the effects of parental psychopathology on antisocial behavior in outpatient children and adolescents.

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Vera, Juan; Granero, Roser; Ezpeleta, Lourdes

2012-06-01

The aim was to examine the potential mediating role of father's and mother's parenting styles in the association between parental psychopathology and antisocial behavior in children, and whether this pathway was moderated by child's sex. Participants included both parents and 338 Spanish outpatient children between 8 and 17 years (56.5% boys). Parenting style had a mediating effect on the studied relationships. Maternal psychopathology was positively associated with antisocial behavior in children, either directly or partially by parenting style, while paternal psychopathology was positively associated with offspring antisocial behavior only through the mediator role of parenting style. Child's sex did not moderate these relationships. Parenting style could be a target for prevention and intervention of antisocial behavior in the offspring of parents with mental health problems.

Longitudinal Mediation Modeling of Unhealthy Behaviors as Mediators between Workplace Demands/Support and Depressive Symptoms

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Magnusson Hanson, Linda L.; Peristera, Paraskevi; Chungkham, Holendro Singh; Westerlund, Hugo

2016-01-01

Lifestyle has been regarded as a key pathway through which adverse psychosocial working characteristics can give rise to long-term health problems. The purpose of this study was to estimate the indirect/mediated effect of health behaviors in the longitudinal work characteristics-depression relationship. The analyses were based on the Swedish Longitudinal Occupational Survey of Health, including 3706 working participants with repeat survey measures on four occasions (2008, 2010, 2012 and 2014). Psychosocial work characteristics including demands and social support were analyzed in relation to depressive symptoms. Autoregressive longitudinal mediation models using structural equation modeling were used to estimate the intermediate effects of unhealthy behaviors including current smoking, excessive alcohol consumption, unhealthy diet and physical inactivity. Both workplace demands and social support were related to later depressive symptoms. In bivariate models we found no significant paths from workplace demands to health behaviors, but two out of three significant time-specific paths from workplace support to excessive drinking and from excessive drinking to depressive symptoms. Social support was also associated with subsequent unhealthy diet, and one path from unhealthy diet to depressive symptoms was found. However, despite indications of certain longitudinal relationships between psychosocial working conditions and health behaviors as well as between health behaviors and depressive symptoms, no significant intermediate effects were found (p>0.05). We conclude that changes in unhealthy behaviors over a period of two years are unlikely to act as strong intermediaries in the longitudinal relationship between job demands and depressive symptoms and between social support and depressive symptoms. PMID:28036376

Longitudinal Mediation Modeling of Unhealthy Behaviors as Mediators between Workplace Demands/Support and Depressive Symptoms.

Science.gov (United States)

Magnusson Hanson, Linda L; Peristera, Paraskevi; Chungkham, Holendro Singh; Westerlund, Hugo

2016-01-01

Lifestyle has been regarded as a key pathway through which adverse psychosocial working characteristics can give rise to long-term health problems. The purpose of this study was to estimate the indirect/mediated effect of health behaviors in the longitudinal work characteristics-depression relationship. The analyses were based on the Swedish Longitudinal Occupational Survey of Health, including 3706 working participants with repeat survey measures on four occasions (2008, 2010, 2012 and 2014). Psychosocial work characteristics including demands and social support were analyzed in relation to depressive symptoms. Autoregressive longitudinal mediation models using structural equation modeling were used to estimate the intermediate effects of unhealthy behaviors including current smoking, excessive alcohol consumption, unhealthy diet and physical inactivity. Both workplace demands and social support were related to later depressive symptoms. In bivariate models we found no significant paths from workplace demands to health behaviors, but two out of three significant time-specific paths from workplace support to excessive drinking and from excessive drinking to depressive symptoms. Social support was also associated with subsequent unhealthy diet, and one path from unhealthy diet to depressive symptoms was found. However, despite indications of certain longitudinal relationships between psychosocial working conditions and health behaviors as well as between health behaviors and depressive symptoms, no significant intermediate effects were found (p>0.05). We conclude that changes in unhealthy behaviors over a period of two years are unlikely to act as strong intermediaries in the longitudinal relationship between job demands and depressive symptoms and between social support and depressive symptoms.

Brain Regions Related to Impulsivity Mediate the Effects of Early Adversity on Antisocial Behavior.

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Mackey, Scott; Chaarani, Bader; Kan, Kees-Jan; Spechler, Philip A; Orr, Catherine; Banaschewski, Tobias; Barker, Gareth; Bokde, Arun L W; Bromberg, Uli; Büchel, Christian; Cattrell, Anna; Conrod, Patricia J; Desrivières, Sylvane; Flor, Herta; Frouin, Vincent; Gallinat, Jürgen; Gowland, Penny; Heinz, Andreas; Ittermann, Bernd; Paillère Martinot, Marie-Laure; Artiges, Eric; Nees, Frauke; Papadopoulos-Orfanos, Dimitri; Poustka, Luise; Smolka, Michael N; Jurk, Sarah; Walter, Henrik; Whelan, Robert; Schumann, Gunter; Althoff, Robert R; Garavan, Hugh

2017-08-15

Individual differences in impulsivity and early adversity are known to be strong predictors of adolescent antisocial behavior. However, the neurobiological bases of impulsivity and their relation to antisocial behavior and adversity are poorly understood. Impulsivity was estimated with a temporal discounting task. Voxel-based morphometry was used to determine the brain structural correlates of temporal discounting in a large cohort (n = 1830) of 14- to 15-year-old children. Mediation analysis was then used to determine whether the volumes of brain regions associated with temporal discounting mediate the relation between adverse life events (e.g., family conflict, serious accidents) and antisocial behaviors (e.g., precocious sexual activity, bullying, illicit substance use). Greater temporal discounting (more impulsivity) was associated with 1) lower volume in frontomedial cortex and bilateral insula and 2) greater volume in a subcortical region encompassing the ventral striatum, hypothalamus and anterior thalamus. The volume ratio between these cortical and subcortical regions was found to partially mediate the relation between adverse life events and antisocial behavior. Temporal discounting is related to regions of the brain involved in reward processing and interoception. The results support a developmental imbalance model of impulsivity and are consistent with the idea that negative environmental factors can alter the developing brain in ways that promote antisocial behavior. Copyright © 2016 Society of Biological Psychiatry. Published by Elsevier Inc. All rights reserved.

Ghrelin mediates stress-induced food-reward behavior in mice.

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Chuang, Jen-Chieh; Perello, Mario; Sakata, Ichiro; Osborne-Lawrence, Sherri; Savitt, Joseph M; Lutter, Michael; Zigman, Jeffrey M

2011-07-01

The popular media and personal anecdotes are rich with examples of stress-induced eating of calorically dense "comfort foods." Such behavioral reactions likely contribute to the increased prevalence of obesity in humans experiencing chronic stress or atypical depression. However, the molecular substrates and neurocircuits controlling the complex behaviors responsible for stress-based eating remain mostly unknown, and few animal models have been described for probing the mechanisms orchestrating this response. Here, we describe a system in which food-reward behavior, assessed using a conditioned place preference (CPP) task, is monitored in mice after exposure to chronic social defeat stress (CSDS), a model of prolonged psychosocial stress, featuring aspects of major depression and posttraumatic stress disorder. Under this regime, CSDS increased both CPP for and intake of high-fat diet, and stress-induced food-reward behavior was dependent on signaling by the peptide hormone ghrelin. Also, signaling specifically in catecholaminergic neurons mediated not only ghrelin's orexigenic, antidepressant-like, and food-reward behavioral effects, but also was sufficient to mediate stress-induced food-reward behavior. Thus, this mouse model has allowed us to ascribe a role for ghrelin-engaged catecholaminergic neurons in stress-induced eating.

Effects of nurses' emotional intelligence on their organizational citizenship behavior, with mediating effects of leader trust and value congruence.

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Lim, So-Hee; Han, Sang-Sook; Joo, Yun-Su

2018-02-20

To investigate the causal relationship between nurses' emotional intelligence and their organizational citizenship behavior and the possible mediating effects of leader trust and value congruence. The participants were 348 nurses who were working in a general hospital in a metropolitan area. The data were collected from December 16, 2012 to February 20, 2013. The hypothetical model of emotional intelligence, organizational citizenship behavior, leader trust, and value congruence was fitted to the actual data via structural equation modeling. The leaders' emotional intelligence had a direct positive effect on leader trust and value congruence; however, the nurses' own emotional intelligence had a negative effect on these two variables. Furthermore, leader trust had a direct positive effect on organizational citizenship behavior; value congruence had no such relationship. The nurses' emotional intelligence had a partial, indirect effect on organizational citizenship behavior via leader trust. In a nursing organization, it is necessary to build a system, such as mentoring, to be able to exchange emotions actively among the members in order to enhance emotional intelligence and have the same values between leaders and members throughout open communication. Therefore, nurse managers can contribute greatly to the enhancement of organizational performance by promoting members' organizational citizenship behavior through improving their relationships with them and gaining their trust, while concurrently making efforts to further develop their emotional intelligence. © 2018 Japan Academy of Nursing Science.

Leader-member exchange and safety citizenship behavior: The mediating role of coworker trust.

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Jiang, Li; Li, Feng; Li, YongJuan; Li, Rui

2017-01-01

To achieve high safety levels, mere compliance with safety regulations is not sufficient; employees must be proactive and demonstrate safety citizenship behaviors. Trust is considered as a mechanism for facilitating the effects of a leader on employee citizenship behaviors. Increasingly research has focused on the role of trust in a safety context; however, the role of coworker trust has been overlooked. The mediating role of coworker trust in the relationship between the leader-member exchange and safety citizenship behavior is the focus of this field study. Front-line employees from an air traffic control center and an airline maintenance department completed surveys measuring leader-member exchange, co-worker trust, and safety citizenship behavior. Structural Equation Modeling revealed affective and cognitive trust in coworkers is influenced by leader-member exchange. A trust-based mediation model where cognitive trust and affective trust mediate the relationship between the leader-member exchange and safety citizenship behavior emerged. Results of this study add to our understanding of the relationship between leader-member exchange and safety behavior. The effect of co-worker trust and the extent to which employees participate in workplace safety practice were identified as critical factors. The findings show that managers need to focus on developing cognitive and affective coworker trust to improve safety citizenship behaviors.

Socioeconomic position, health behaviors, and C-reactive protein: A moderated-mediation analysis

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Kershaw, Kiarri N.; Mezuk, Briana; Abdou, Cleopatra M.; Rafferty, Jane A.; Jackson, James S.

2010-01-01

Objective We sought to understand the link between low SEP and cardiovascular disease (CVD) by examining the association between SEP, health-related coping behaviors, and C-reactive protein (CRP), an inflammatory marker and independent risk factor for CVD in a US sample of adults. Design We used a multiple mediation model to evaluate how these behaviors work in concert to influence CRP levels and whether these relationships were moderated by gender and race/ethnicity. Main outcome measures CRP levels were divided into two categories: elevated CRP (3.1–10.0 mg/L) and normal CRP (≤ 3.0 mg/L). Results Both poverty and low educational attainment were associated with elevated CRP, and these associations were primarily explained through higher levels of smoking and lower levels of exercise. In the education model, poor diet also emerged as a significant mediator. These behaviors accounted for 87.9% of the total effect of education on CRP and 55.8% the total effect of poverty on CRP. We also found significant moderation of these mediated effects by gender and race/ethnicity. Conclusion These findings demonstrate the influence of socioeconomically-patterned environmental constraints on individual-level health behaviors. Specifically, reducing socioeconomic inequalities may have positive effects on CVD disparities through reducing cigarette smoking and increasing vigorous exercise. PMID:20496985

Transformational leadership and organizational citizenship behavior: Modeling emotional intelligence as mediator

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Majeed Nauman

2017-12-01

Full Text Available Leadership and organizational citizenship behavior (OCB stayed at pinnacle in the arena of organizational behavior research since decades and has attained significant consideration of scholars pursuing to define multifaceted dynamics of leadership and their influence on follower’s behavior at work. The voluntary behavior of Organizational citizenship improves organizational effectiveness, and it goes beyond formal job duties. This study attempts to explore the association amongst transformational leadership and organizational citizenship behavior of teachers in public sector higher education institutions in Pakistan. Study of organizational citizenship behavior in educational organizations and academicians is of high value that definitely requires attention. This study examines the direct and indirect influence of transformational leadership through exploring the mediating role of emotional intelligence. The model was tested by employing structural equation modelling technique on survey responses collected from academicians. Results from 220 responses indicated that relationship between transformational leadership and Organizational Citizenship Behavior is statistically significant where Emotional Intelligence plays an important role as a mediator. The results support and add to the positive effects of transformational leadership style interconnected with extra role behavior at work making it more meaningful. The findings make a significant contribution to leadership and organizational behavior literature in higher education sector and propose that organizations should implement practices that help in enhancing the level of organizational citizenship behavior in organizations.

Predictive Effects of Good Self-Control and Poor Regulation on Alcohol-Related Outcomes: Do Protective Behavioral Strategies Mediate?

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Pearson, Matthew R.; Kite, Benjamin A.; Henson, James M.

2016-01-01

In the present study, we examined whether use of protective behavioral strategies mediated the relationship between self-control constructs and alcohol-related outcomes. According to the two-mode model of self-control, good self-control (planfulness; measured with Future Time Perspective, Problem Solving, and Self-Reinforcement) and poor regulation (impulsivity; measured with Present Time Perspective, Poor Delay of Gratification, Distractibility) are theorized to be relatively independent constructs rather than opposite ends of a single continuum. The analytic sample consisted of 278 college student drinkers (68% women) who responded to a battery of surveys at a single time point. Using a structural equation model based on the two-mode model of self-control, we found that good self-control predicted increased use of three types of protective behavioral strategies (Manner of Drinking, Limiting/Stopping Drinking, and Serious Harm Reduction). Poor regulation was unrelated to use of protective behavioral strategies, but had direct effects on alcohol use and alcohol problems. Further, protective behavioral strategies mediated the relationship between good self-control and alcohol use. The clinical implications of these findings are discussed. PMID:22663345

Hope, anger, and depression as mediators for forgiveness and social behavior in Turkish children.

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Taysi, Ebru; Curun, Ferzan; Orcan, Fatih

2015-01-01

This study examined the mediating effects of hope, anger, and depression in the associations between forgiveness and social behavior, in fourth grade students in Turkey. The 352 fourth grade primary school students were involved in the study. The average age was 9.98 and 56.3% were boys. The Enright Forgiveness Inventory for Children (EFI-C), the Beck Anger Inventory for Youth (BANI-Y), the Children Hope Scale (CHS), the Social Behavior Questionnaire (SBQ), and the Children's Depression Inventory (CDI) were used. Results showed that depression mediates the relationship between anger and antisocial behavior and between hope and antisocial behavior. Anger mediates the relationship between hope and depression and between hope and antisocial behavior. Forgiveness was related to anger and hope directly. Implications of this study for child counseling were discussed.

Coping mediates the effects of cognitive-behavioral therapy for alcohol use disorder among out-patient clients in Project MATCH when dependence severity is high.

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Roos, Corey R; Maisto, Stephen A; Witkiewitz, Katie

2017-09-01

There is inconsistent evidence that alcohol-specific coping is a mechanism of change in cognitive-behavioral therapy (CBT) for alcohol use disorder (AUD). Our primary aim was to test whether baseline dependence severity moderates the mediational effect of CBT on drinking outcomes via coping. Secondary data analysis of Project MATCH , a multi-site alcohol treatment trial in which participants, recruited in out-patient and aftercare arms, were randomized to three treatments: CBT, motivational enhancement therapy (MET) and Twelve-Step facilitation (TSF). Nine research sites in the United States. A total of 1063 adults with AUD. The primary outcomes were percentage days abstinent and percentage heavy drinking days at the 1-year follow-up. Coping was assessed with the Processes of Change Questionnaire . Dependence severity was measured with the Alcohol Dependence Scale . Among the full available sample (across treatment arms), there were no significant moderated mediation effects. Double moderated mediation analyses indicated that several moderated mediation effects were moderated by treatment arm (all P cognitive-behavioral therapy for alcohol use disorder was conditional on dependence severity. End-of-treatment coping mediated the positive treatment effects of cognitive-behavioral therapy on 1-year drinking outcomes among out-patient clients when dependence severity was high, but not when dependence severity was low or moderate. © 2017 Society for the Study of Addiction.

Gang membership of California middle school students: behaviors and attitudes as mediators of school violence.

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Estrada, Joey Nuñez; Gilreath, Tamika D; Astor, Ron Avi; Benbenishty, Rami

2013-08-01

Empirical evidence examining how risk and protective behaviors may possibly mediate the association between gang membership and school violence is limited. This study utilizes a statewide representative sample of 152 023 Latino, Black and White seventh graders from California to examine a theoretical model of how school risk (e.g. truancy, school substance use and risky peer approval) and protective (e.g. connectedness, support and safety) behaviors and attitudes mediate the effects of gang membership on school violence behaviors. The dataset was collected in the 2005-2006 and 2006-2007 academic school years using the ongoing large-scale California Healthy Kids Survey conducted by WestEd for the State of California. Approximately 9.5% of the sample considered themselves to be a member of a gang. The findings indicate that school risk behaviors and attitudes mediate the association between gang membership and school violence behaviors. Although the direct negative association between gang membership and school violence perpetration is weak, the positive indirect effect mediated by school risks behaviors and attitudes is strong. This indicates that when gang members engage in school risk behaviors, they are much more likely to be school violence perpetrators. Implications for further research, theory and practice for both gang and school violence researchers are discussed.

Mediator of moderators: temporal stability of intention and the intention-behavior relation.

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Sheeran, Paschal; Abraham, Charles

2003-02-01

Intention certainty, past behavior, self-schema, anticipated regret, and attitudinal versus normative control all have been found to moderate intention-behavior relations. It is argued that moderation occurs because these variables produce "strong" intentions. Stability of intention over time is a key index of intention strength. Consequently, it was hypothesized that temporal stability of intention would mediate moderation by these other moderators. Participants (N = 185) completed questionnaire measures of theory of planned behavior constructs and moderator variables at two time points and subsequently reported their exercise behavior. Findings showed that all of the moderators, including temporal stability, were associated with significant improvements in consistency between intention and behavior. Temporal stability also mediated the effects of the other moderators, supporting the study hypothesis. Copyright 2003 Society for Personality and Social Psychology, Inc.

Mediators and treatment matching in behavior therapy, cognitive therapy and cognitive behavior therapy for chronic insomnia.

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Harvey, Allison G; Dong, Lu; Bélanger, Lynda; Morin, Charles M

2017-10-01

To examine the mediators and the potential of treatment matching to improve outcome for cognitive behavior therapy (CBT) for insomnia. Participants were 188 adults (117 women; Mage = 47.4 years, SD = 12.6) meeting the Diagnostic and Statistical Manual of Mental Disorders (4th ed.; text rev.; DSM-IV-TR; American Psychiatric Association [APA], 2000) diagnostic criteria for chronic insomnia (Mduration: 14.5 years, SD: 12.8). Participants were randomized to behavior therapy (BT; n = 63), cognitive therapy (CT; n = 65), or CBT (n = 60). The outcome measure was the Insomnia Severity Index (ISI). Hypothesized BT mediators were sleep-incompatible behaviors, bedtime variability (BTv), risetime variability (RTv) and time in bed (TIB). Hypothesized CT mediators were worry, unhelpful beliefs, and monitoring for sleep-related threat. The behavioral processes mediated outcome for BT but not CT. The cognitive processes mediated outcome in both BT and CT. The subgroup scoring high on both behavioral and cognitive processes had a marginally significant better outcome if they received CBT relative to BT or CT. The subgroup scoring relatively high on behavioral but low on cognitive processes and received BT or CBT did not differ from those who received CT. The subgroup scoring relatively high on cognitive but low on behavioral processes and received CT or CBT did not differ from those who received BT. The behavioral mediators were specific to BT relative to CT. The cognitive mediators were significant for both BT and CT outcomes. Patients exhibiting high levels of both behavioral and cognitive processes achieve better outcome if they receive CBT relative to BT or CT alone. (PsycINFO Database Record (c) 2017 APA, all rights reserved).

Mindfulness facets, trait emotional intelligence, emotional distress, and multiple health behaviors: A serial two-mediator model.

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Jacobs, Ingo; Wollny, Anna; Sim, Chu-Won; Horsch, Antje

2016-06-01

In the present study, we tested a serial mindfulness facets-trait emotional intelligence (TEI)-emotional distress-multiple health behaviors mediation model in a sample of N = 427 German-speaking occupational therapists. The mindfulness facets-TEI-emotional distress section of the mediation model revealed partial mediation for the mindfulness facets Act with awareness (Act/Aware) and Accept without judgment (Accept); inconsistent mediation was found for the Describe facet. The serial two-mediator model included three mediational pathways that may link each of the four mindfulness facets with multiple health behaviors. Eight out of 12 indirect effects reached significance and fully mediated the links between Act/Aware and Describe to multiple health behaviors; partial mediation was found for Accept. The mindfulness facet Observe was most relevant for multiple health behaviors, but its relation was not amenable to mediation. Implications of the findings will be discussed. © 2016 Scandinavian Psychological Associations and John Wiley & Sons Ltd.

A Model of Sexual Abuse's Effects on Suicidal Behavior and Delinquency: The Role of Emotions as Mediating Factors

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Sigfusdottir, Inga Dora; Asgeirsdottir, Bryndis Bjork; Gudjonsson, Gisli H.; Sigurdsson, Jon Fridrik

2008-01-01

Drawing on Agnew's general strain theory, we examined whether depressed mood and anger mediated the effects of sexual abuse on suicidal behavior and delinquency. Participants included 9,113 students attending high schools in Iceland. Structural equation modeling showed that, while controlling for family structure and parental education, being…

Pivotal behavior as the mediator of the relationship between parental responsiveness and children's symbolic behavior.

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Chiu, Chun-Hao; Lin, Chu-Sui; Mahoney, Gerald; Cheng, Shu-Fen; Chang, Shu-Hui

2017-08-01

Previous research with parents and children with developmental disabilities indicated that the relationship between mothers' responsive style of interaction and children's rate of development was mediated by the simultaneous relationship between mothers' responsiveness and children's social engagement, or pivotal behavior. In this study, we attempted to determine whether children's pivotal behavior might also mediate the relationship between responsiveness and child development in a sample of 165 typically developing toddlers and their Taiwanese parents. Child development was assessed with a parent report measure of children's symbolic behavior. Parental responsiveness and children's pivotal behavior were assessed from observations of parent-child play. Results indicated that parental responsiveness was correlated with children's pivotal behavior, and that both of these variables were correlated with children's symbolic behavior. Structural equation models indicated that the relationship between responsiveness and children's symbolic behavior was fully mediated by children's pivotal behavior. Copyright © 2017 Elsevier Inc. All rights reserved.

Effectiveness of Parent-Child Mediation in Improving Family Functioning and Reducing Adolescent Problem Behavior: Results from a Pilot Randomized Controlled Trial.

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Tucker, Joan S; Edelen, Maria Orlando; Huang, Wenjing

2017-03-01

Parent-child mediation programs are intended to resolve or manage disputes and improve family functioning, but rigorous evaluations of their effectiveness are lacking. Families referred to a community-based mediation program (N = 111) were randomized to an intervention or wait-list control group, and completed three surveys over a 12-week period. With the exception of parent-reported child delinquency (which decreased more in the intervention group), this evaluation provides little support for the short-term effectiveness of parent-child mediation for improving family functioning and reducing child problem behaviors in general. Given that this is the first randomized controlled trial of a parent-child mediation program, additional evaluations involving larger samples and longer follow-ups are needed before firm conclusions can be drawn about the effectiveness of this intervention.

Effectiveness of Parent-Child Mediation in Improving Family Functioning and Reducing Adolescent Problem Behavior: Results from a Pilot Randomized Controlled Trial

Science.gov (United States)

Tucker, Joan S.; Edelen, Maria Orlando; Huang, Wenjing

2016-01-01

Parent-child mediation programs are intended to resolve or manage disputes and improve family functioning, but rigorous evaluations of their effectiveness are lacking. Families referred to a community-based mediation program (N=111) were randomized to an intervention or wait-list control group, and completed three surveys over a 12-week period. With the exception of parent-reported child delinquency (which decreased more in the intervention group), this evaluation provides little support for the short-term effectiveness of parent-child mediation for improving family functioning and reducing child problem behaviors in general. Given that this is the first randomized controlled trial of a parent-child mediation program, additional evaluations involving larger samples and longer follow-ups are needed before firm conclusions can be drawn about the effectiveness of this intervention. PMID:26762375

The role of pragmatics in mediating the relationship between social disadvantage and adolescent behavior.

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Law, James; Rush, Robert; Clegg, Judy; Peters, Tim; Roulstone, Susan

2015-06-01

The relationship between social disadvantage, behavior, and communication in childhood is well established. Less is known about how these 3 interact across childhood and specifically whether pragmatic language skills act as a mediator between early social disadvantage and adolescent behavior. The sample was the Avon Longitudinal Study of Parents and Children, a representative birth cohort initially recruited in England in 1991/1992 and followed through to adolescence and beyond. Of the original 13,992 live births, data were available for 2926 children at 13 years. Univariable analysis was first used to identify sociodemographic and other predictors of the Strengths and Difficulties Questionnaire (SDQ) at 13 years. The mediational role of the pragmatics scale of the Children's Communication Checklist (CCC) at 9 years was then tested, controlling for age, gender, and IQ. There was evidence of both a direct effect from social disadvantage (path C') to SDQ Total Behavior Score at 13 years (-.205; p pragmatics scale as a mediator. The latter represents a reduction in the magnitude of the unadjusted effect or "total effect" (-.430), demonstrating that the pragmatics scale partially mediates the relationship of early social disadvantage and adolescent behavior (even after controlling for other covariates). The same relationship held for all but the pro-social subscale of the SDQ. The results provide evidence to suggest that there maybe a causal relationship between these variables, suggesting that interventions targeting pragmatic skills have the potential to reduce adolescent behavioral symptoms.

Mediating Role of Career Coaching on Job-Search Behavior of Older Generations.

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Lim, Doo Hun; Oh, Eunjung; Ju, Boreum; Kim, Hae Na

2018-01-01

This study focuses on career development processes and options for older workers in South Korea and explores how career coaching enhances their career development efforts and transition needs. The purpose of this study is to investigate the structural relationship between older employees' goal-setting, self-efficacy, and job-search behavior mediated by career coaching. A total of 249 participants were recruited in a metropolitan city in South Korea. Based on the literature review, hypotheses were developed and tested on the structural model and the following findings were revealed. First, the findings indicate a positive effect of self-efficacy on older workers' job-search behavior. Second, the value of career coaching was found to affect older workers' job-search behavior in the South Korean context. Third, career-goal commitment alone did not have a positive significant effect on job-search behavior, but it was influential through the mediating process of the perceived quality of the career coaching program provided by an employment center in South Korea.

THE EFFECTS OF DEVELOPMENTAL AND RATIONAL SUBCULTURES ON ENTREPRENEURIAL BEHAVIORS: THE MEDIATING ROLE OF PERCEIVED ENVIRONMENTAL UNCERTAINTY

OpenAIRE

Irfan Akkoc; Abdullah Caliskan; Omer Turunc

2012-01-01

The aim of this study is to investigate the effect of developmental and rational culture on the employees’ entrepreneurial behaviors and the mediating role of the perceived environmental uncertainty on this effect. The relationship between the aforementioned variables is analyzed by using a set of statistical techniques, i.e., factor analysis, regression analysis, and sobel tests. The data used in the analysis is obtained through questionnaires filled out by 651 employees of the private firms...

Interdependence and organizational citizenship behavior: exploring the mediating effect of group cohesion in multilevel analysis.

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Chen, Chun-Hsi Vivian; Tang, Ya-Yun; Wang, Shih-Jon

2009-12-01

The authors investigated the mechanism of group cohesion in the relationship between (a) task interdependence and goal interdependence and (b) individuals' organizational citizenship behavior (OCB). The authors adopted a multilevel perspective to facilitate understanding of the complex relations among variables. They collected data from 53 supervisors and 270 employees from R&D departments in Taiwan. The authors found that group cohesion fully mediated the effects of task interdependence and goal interdependence on employees' OCB. In addition, task interdependence had a greater effect on group cohesion than did goal interdependence. The authors discuss implications and suggestions for future research.

Effects of Inclusive Leadership on Employee Voice Behavior and Team Performance: The Mediating Role of Caring Ethical Climate

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Lei Qi

2017-09-01

Full Text Available As an emerging research field of leadership, inclusive leadership reflects the new style of leadership demanded by researchers and practitioners. Is it a leadership style that can better integrate employees and organizations and adapt to new complex management situation? Based on theories of social exchange, organizational support, and self-determination, this study investigated the impact of inclusive leadership on employee voice behavior and team performance through caring ethical climate. We evaluated the model with a time-lagged data of 329 team members from 105 teams in six cities in China. Results indicated as following: inclusive leadership was positively correlated with employee voice behavior at the individual level and team performance at the team level; caring ethical climate mediated the relationship between inclusive leadership and employee voice behavior at the individual level, as well as mediated the relationship between inclusive leadership and team performance at the team level. This study revealed the mechanism of the positive cross-level effects of inclusive leadership on the caring ethical climate, employee voice behavior, and team performance. These findings also provided important contributions for human resource management and practice.

Social anxiety symptoms and drinking behaviors among college students: the mediating effects of drinking motives.

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Villarosa, Margo C; Madson, Michael B; Zeigler-Hill, Virgil; Noble, Jeremy J; Mohn, Richard S

2014-09-01

The impact of social anxiety on negative alcohol-related behaviors among college students has been studied extensively. Drinking motives are considered the most proximal indicator of college student drinking behavior. The current study examined the mediating role of drinking motives in the relationship that social anxiety symptoms have with problematic (alcohol consumption, harmful drinking, and negative consequences) and safe (protective behavioral strategies) drinking behaviors. Participants were 532 undergraduates who completed measures of social anxiety, drinking motives, alcohol use, harmful drinking patterns, negative consequences of alcohol use, and protective behavioral strategy use. Our results show that students with higher levels of social anxiety symptoms who were drinking for enhancement motives reported more harmful drinking and negative consequences, and used fewer protective behavioral strategies. Thus, students who were drinking to increase their positive mood were participating in more problematic drinking patterns compared with students reporting fewer social anxiety symptoms. Further, conformity motives partially mediated the relationship between social anxiety symptoms and negative consequences. Thus, students with more symptoms of social anxiety who were drinking in order to be accepted by their peers were more likely than others to experience negative consequences. Clinical and research implications are discussed.

Adult Romantic Attachment and Couple Conflict Behaviors: Intimacy as a Multi-Dimensional Mediator

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Tina D. Du Rocher Schudlich

2013-06-01

Full Text Available This study investigated associations between adult romantic attachment and couples’ conflict behaviors and the potential mediating role of intimacy. A community sample of 74 couples reported on their attachment security style on the Attachment Style Measure (ASM (Simpson, 1990 and on multiple dimensions of intimacy on the Personal Assessment of Intimacy in Relationships (PAIR (Schaefer & Olson, 1981. Couples’ conflict behaviors were assessed via behavioral observations and coded for positive and negative dimensions of conflict. Path analyses indicated numerous actor and partner effects in the links between attachment, intimacy, and conflict. For men, both avoidant and anxious attachment styles were predictive of their own and their partner’s intimacy. For women though, both secure and avoidant attachment styles were predictive of their own and their partner’s intimacy. For men, all domains of intimacy were predictive of their own or their partner’s conflict behaviors. For women, only emotional intimacy was predictive of conflict behaviors. All domains of men’s intimacy emerged as significant mediators of associations between attachment and couples’ conflict behaviors. For women, only emotional intimacy mediated these associations. Implications for the treatment of relationally-discordant couples are discussed.

Parent-Reported Behavioral and Psychiatric Problems Mediate the Relationship between Sleep-Disordered Breathing and Cognitive Deficits in School-Aged Children

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Dale L. Smith

2017-08-01

Full Text Available BackgroundNumerous studies over the past several decades have illustrated that children who suffer from sleep-disordered breathing (SDB are at greater risk for cognitive, behavioral, and psychiatric problems. Although behavioral problems have been proposed as a potential mediator between SDB and cognitive functioning, these relationships have not been critically examined.MethodsThis analysis is based on a community-based cohort of 1,115 children who underwent overnight polysomnography, and cognitive and behavioral phenotyping. Structural model of the relationships between SDB, behavior, and cognition, and two recently developed mediation approaches based on propensity score weighting and resampling were used to assess the mediational role of parent-reported behavior and psychiatric problems in the relationship between SDB and cognitive functioning. Multiple models utilizing two different SDB definitions further explored direct effects of SDB on cognition as well as indirect effects through behavioral pathology. All models were adjusted for age, sex, race, BMI z-score, and asthma status.ResultsIndirect effects of SDB through behavior problems were significant in all mediation models, while direct effects of SDB on cognition were not. The findings were consistent across different mediation procedures and remained essentially unaltered when different criteria for SDB, behavior, and cognition were used.ConclusionPotential effects of SDB on cognitive functioning appear to occur through behavioral problems that are detectable in this pediatric population. Thus, early attentional or behavioral pathology may be implicated in the cognitive functioning deficits associated with SDB, and may present an early morbidity-related susceptibility biomarker.

Mediators of the effect of the JUMP-in intervention on physical activity and sedentary behavior in Dutch primary schoolchildren from disadvantaged neighborhoods

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van Stralen Maartje M

2012-11-01

Full Text Available Abstract Background Important health benefits can be achieved when physical activity in children from low socio-economic status is promoted and sedentariness is limited. By specifying the mediating mechanisms of existing interventions one can improve future physical activity interventions. This study explored potential mediators of the long-term effect of the school-based multicomponent JUMP-in intervention on sport participation, outdoor play and screen time in Dutch primary schoolchildren from disadvantaged neighborhoods. Methods In total, 600 primary schoolchildren (aged 9.8 ± 0.7, 51% girls, 13% Dutch ethnicity, 35% overweight from 9 intervention and 10 control schools were included in the analyses. JUMP-in was developed using Intervention Mapping, and targeted psychological and environmental determinants of physical activity. Outcome behaviors were self-reported sport participation, outdoor play, TV-viewing behavior and computer use. Potential mediators were self-reported psychological, social and physical environmental factors. Results JUMP-in was effective in improving sport participation after 20 months, but not in improving outdoor play, or reducing TV-viewing or computer time. JUMP-in was not effective in changing hypothesized mediators so no significant mediated effects could be identified. However, changes in self-efficacy, social support and habit strength were positively associated with changes in sport participation, and changes in social support, self-efficacy, perceived planning skills, enjoyment and habit strength were positively associated with changes in outdoor play. Changes in enjoyment was positively associated with changes in TV-viewing while parental rules were negatively associated. Having a computer in the bedroom and enjoyment were positively associated with changes in computer use, while changes in parental rules were negatively associated. Conclusions Besides a significant positive effect on sports participation

Divergent pathways to influence: Cognition and behavior differentially mediate the effects of optimism on physical and mental quality of life in Chinese university students.

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Ramsay, Jonathan E; Yang, Fang; Pang, Joyce S; Lai, Ching-Man; Ho, Roger Cm; Mak, Kwok-Kei

2015-07-01

Previous research has indicated that both cognitive and behavioral variables mediate the positive effect of optimism on quality of life; yet few attempts have been made to accommodate these constructs into a single explanatory framework. Adopting Fredrickson's broaden-and-build perspective, we examined the relationships between optimism, self-rated health, resilience, exercise, and quality of life in 365 Chinese university students using path analysis. For physical quality of life, a two-stage model, in which the effects of optimism were sequentially mediated by cognitive and behavioral variables, provided the best fit. A one-stage model, with full mediation by cognitive variables, provided the best fit for mental quality of life. This suggests that optimism influences physical and mental quality of life via different pathways. © The Author(s) 2013.

The Mediating Roles of Anxiety Depression, and Hopelessness on Adolescent Suicidal Behaviors

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Thompson, Elaine Adams; Mazza, James J.; Herting, Jerald R.; Randell, Brooke P.; Eggert, Leona L.

2005-01-01

The purpose of this study was to explore the roles of anxiety, depression, and hopelessness as mediators between known risk factors and suicidal behaviors among 1,287 potential high school dropouts. As a step toward theory development, a model was tested that posited the relationships among these variables and their effects on suicidal behaviors.…

The Mediating Role of Self-Esteem: The Effects of Social Support and Subjective Well-Being on Adolescents' Risky Behaviors

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Savi Çakar, Firdevs; Tagay, Özlem

2017-01-01

This research is a descriptive study based on the testing of a structural model developed by considering the effects of perceived social support and subjective well-being on adolescents' risky behaviors, and the possible mediating role of self-esteem. Participants consisted of 676 high school students attending formal education institutions,…

The role of intention as mediator between latent effects and behavior: application of a hybrid choice model to study departure time choices

DEFF Research Database (Denmark)

Thorhauge, Mikkel; Cherchi, Elisabetta; Walker, Joan L.

2017-01-01

of them consider the effect of intention and its role as mediator between those psychological effects and the choice, as implied in the Theory of Planned Behavior. In this paper we contribute to the literature in this field by specifically studying the direct effect of the intention on the actual behavior......, while attitude, social norms, and perceived behavioral control affect the intention to behave in a given way. We apply a hybrid choice model to study the departure time choice. For this, we use data from Danish commuters in the morning rush hours in the Greater Copenhagen area. We find a significant...

Mediation and moderation of divorce effects on children's behavior problems.

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Weaver, Jennifer M; Schofield, Thomas J

2015-02-01

Using data from the National Institute of Child Health and Human Development Study of Early Child Care and Youth Development, we examined children's internalizing and externalizing behavior problems from age 5 to 15 years in relation to whether they had experienced a parental divorce. Children from divorced families had more behavior problems compared with a propensity-score-matched sample of children from intact families, according to both teachers and mothers. They exhibited more internalizing and externalizing problems at the first assessment after the parents' separation and at the last available assessment (age 11 years for teacher reports, or 15 years for mother reports). Divorce also predicted both short-term and long-term rank-order increases in behavior problems. Associations between divorce and child behavior problems were moderated by family income (assessed before the divorce) such that children from families with higher incomes prior to the separation had fewer internalizing problems than children from families with lower incomes prior to the separation. Higher levels of predivorce maternal sensitivity and child IQ also functioned as protective factors for children of divorce. Mediation analyses showed that children were more likely to exhibit behavior problems after the divorce if their postdivorce home environment was less supportive and stimulating, their mother was less sensitive and more depressed, and their household income was lower. We discuss avenues for intervention, particularly efforts to improve the quality of home environments in divorced families. PsycINFO Database Record (c) 2015 APA, all rights reserved.

Behavioral Self-Regulation and Weight-Related Behaviors in Inner-City Adolescents: A Model of Direct and Indirect Effects.

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Isasi, Carmen R; Wills, Thomas A

2011-08-01

BACKGROUND: This study examined the association of two distinct self-regulation constructs, effortful control and dysregulation, with weight-related behaviors in adolescents and tested whether these effects were mediated by self-efficacy variables. METHODS: A school-based survey was conducted with 1771 adolescents from 11 public schools in the Bronx, New York. Self-regulation was assessed by multiple indicators and defined as two latent constructs. Dependent variables included fruit/vegetable intake, intake of snack/junk food, frequency of physical activity, and time spent in sedentary behaviors. Structural equation modeling examined the relation of effortful control and dysregulation to lifestyle behaviors, with self-efficacy variables as possible mediators. RESULTS: Study results showed that effortful control had a positive indirect effect on fruit and vegetable intake, mediated by self-efficacy, as well as a direct effect. Effortful control also had a positive indirect effect on physical activity, mediated by self-efficacy. Dysregulation had direct effects on intake of junk food/snacks and time spent in sedentary behaviors. CONCLUSIONS: These findings indicate that self-regulation characteristics are related to diet and physical activity and that some of these effects are mediated by self-efficacy. Different effects were noted for the two domains of self-regulation. Prevention researchers should consider including self-regulation processes in programs to improve health behaviors in adolescents.

Reciprocal effects among changes in weight, body image, and other psychological factors during behavioral obesity treatment: a mediation analysis

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Barata José T

2009-02-01

Full Text Available Abstract Background Changes in body image and subjective well-being variables (e.g. self-esteem are often reported as outcomes of obesity treatment. However, they may, in turn, also influence behavioral adherence and success in weight loss. The present study examined associations among obesity treatment-related variables, i.e., change in weight, quality of life, body image, and subjective well-being, exploring their role as both mediators and outcomes, during a behavioral obesity treatment. Methods Participants (BMI = 31.1 ± 4.1 kg/m2; age = 38.4 ± 6.7 y were 144 women who attended a 12-month obesity treatment program and a comparison group (n = 49, who received a general health education program. The intervention included regular group meetings promoting lasting behavior changes in physical activity and dietary intake. Body image, quality of life, subjective well-being, and body weight were measured at baseline and treatment's end. Mediation was tested by multiple regression and a resampling approach to measure indirect effects. Treatment group assignment was the independent variable while changes in weight and in psychosocial variables were analyzed alternatively as mediators and as dependent variables. Results At 12 months, the intervention group had greater weight loss (-5.6 ± 6.8% vs. -1.2 ± 4.6%, p Conclusion Changes in weight and body image may reciprocally affect each other during the course of behavioral obesity treatment. No evidence of reciprocal relationships was found for the other models under analysis; however, weight changes partially explained the effects of treatment on quality of life and self-esteem. Weight and psychosocial changes co-occur during treatment and will probably influence each other dynamically, in ways not yet adequately understood. Results from this study support the inclusion of intervention contents aimed at improving body image in weight management programs.

Modeling the Longitudinal Direct and Indirect Effects of Attitudes, Self-Efficacy, and Behavioral Intentions on Practice Behavior Outcomes of Suicide Intervention Training.

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Osteen, Philip; Frey, Jodi M; Woods, MaKenna N; Ko, Jungyai; Shipe, Stacey

2017-08-01

The purpose of this study was to use a longitudinal path analysis to test attitudes toward suicide prevention, self-efficacy, and behavioral intentions as mediators/moderators of clinical skill development over time following suicide intervention training. Results support a direct effect of attitudes on practice behaviors and self-efficacy, but no moderating effect. Self-efficacy performed as a mediator of practice behaviors over time. Behavioral intention had a direct effect on practice behaviors and mediated the relationship between attitudes and practice behaviors. Implications for research and practice are discussed. © 2016 The American Association of Suicidology.

The mediational role of parenting on the longitudinal relation between child personality and externalizing behavior

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Prinzie, P.; van der Sluis, Cathy .M.; de Haan, Amaranta D.; Dekovic, Maja

2010-01-01

ABSTRACT Building on prior cross-sectional work, this longitudinal study evaluated the proposition that maternal and paternal overreactive and authoritative parenting mediates the effect of child personality characteristics on externalizing behavior. Data from the Flemish Study on Parenting, Personality, and Problem Behavior were used in a moderated mediation analysis (N=434). Teachers rated children's Big Five characteristics, fathers and mothers rated their parenting, and 3 years later, chi...

The Relationship between Authoritarian Leadership and Employees’ Deviant Workplace Behaviors: The Mediating Effects of Psychological Contract Violation and Organizational Cynicism

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Jiang, Hongyan; Chen, Yang; Sun, Peizhen; Yang, Jun

2017-01-01

This study investigated the relationship between authoritarian leadership and employees’ deviant workplace behaviors (DWB), as well as the mediating effects of psychological contract violation and organizational cynicism. A cross-sectional survey was conducted among 391 manufacturing workers in a northern city of China. Structural equation modeling was performed to test the theory-driven models. The results showed that the relationship between authoritarian leadership and employees’ DWB was mediated by organizational cynicism. Moreover, this relationship was also sequentially mediated by psychological contract violation and organizational cynicism. This research unveiled psychological contract violation and organizational cynicism as underlying mechanism that explained the link between authoritarian leadership and employees’ DWB. PMID:28536550

The Relationship between Authoritarian Leadership and Employees' Deviant Workplace Behaviors: The Mediating Effects of Psychological Contract Violation and Organizational Cynicism.

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Jiang, Hongyan; Chen, Yang; Sun, Peizhen; Yang, Jun

2017-01-01

This study investigated the relationship between authoritarian leadership and employees' deviant workplace behaviors (DWB), as well as the mediating effects of psychological contract violation and organizational cynicism. A cross-sectional survey was conducted among 391 manufacturing workers in a northern city of China. Structural equation modeling was performed to test the theory-driven models. The results showed that the relationship between authoritarian leadership and employees' DWB was mediated by organizational cynicism. Moreover, this relationship was also sequentially mediated by psychological contract violation and organizational cynicism. This research unveiled psychological contract violation and organizational cynicism as underlying mechanism that explained the link between authoritarian leadership and employees' DWB.

The Relationship between Authoritarian Leadership and Employees’ Deviant Workplace Behaviors: The Mediating Effects of Psychological Contract Violation and Organizational Cynicism

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Hongyan Jiang

2017-05-01

Full Text Available This study investigated the relationship between authoritarian leadership and employees’ deviant workplace behaviors (DWB, as well as the mediating effects of psychological contract violation and organizational cynicism. A cross-sectional survey was conducted among 391 manufacturing workers in a northern city of China. Structural equation modeling was performed to test the theory-driven models. The results showed that the relationship between authoritarian leadership and employees’ DWB was mediated by organizational cynicism. Moreover, this relationship was also sequentially mediated by psychological contract violation and organizational cynicism. This research unveiled psychological contract violation and organizational cynicism as underlying mechanism that explained the link between authoritarian leadership and employees’ DWB.

Mediators and Moderators of a School-Based Cognitive-Behavioral Depression Prevention Program.

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Duong, Mylien T; Kelly, Brynn M; Haaland, Wren L; Matsumiya, Brandon; Huey, Stanley J; McCarty, Carolyn A

2016-10-01

This study tested potential moderators and mediators of an indicated depression prevention program for middle school students, Positive Thoughts and Actions (PTA). Participants were 120 students randomly assigned to PTA, or a brief, individually administered supportive intervention (Individual Support Program, or ISP). Youths completed measures of depressive symptoms at baseline, post-intervention, and 12-month follow-up. Hierarchical regression was used to test three moderators-ethnic minority status, gender, and baseline depressive symptoms-and three mediators representing functional outcomes targeted by PTA-parent-child communication, attitude towards school, and health behavior. Ethnic minority status did not moderate PTA effects at post-intervention but did moderate PTA effects at 12-month follow-up. At 12 months, PTA appeared to be more effective for White participants than ethnic minority youth. Follow-up analyses suggested this moderation effect was due to the tendency of ethnic minority youth, especially those with fewer symptoms at baseline, to drop out by 12 months. Neither gender nor baseline depressive symptoms moderated the effects of PTA. Although PTA improved health behavior and attitudes toward school, there was no evidence that any of these functional outcomes measured mediated the impact of PTA on depressive symptoms. Future directions are discussed.

Revisiting Mediation in the Social and Behavioral Sciences

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Aurelio José Figueredo

2013-11-01

Full Text Available The process of mediation is of critical importance to the social and behavioral sciences and to evolutionary social psychology in particular. As with the concept of evolutionary adaptation, however, one can argue that causal mediation is in need of explicit theoretical justification and empirical support. Mainstream evolutionary social psychology proposes, for example, that organisms are “adaptation executers”, and not “fitness maximizers”. The execution of adaptations is triggered by fitness-relevant ecological contingencies at both ultimate and proximate levels of analysis. This logic is essentially equivalent to what methodologists refer to as the process of mediation; the adaptations to be executed (or not, depending upon the prevailing environmental circumstances causally mediate the effects of the ecological contingencies upon the fitness outcomes. Thus, the process of mediation can be generally conceptualized as a causal chain of events leading to a given outcome or set of outcomes. If a predictor variable operates through an intervening variable to affect a criterion variable, then mediation is said to exist. Nevertheless, it does not appear that some psychologists (particularly evolutionary-social psychologists are sufficiently well-versed in the fundamental logic and quantitative methodology of establishing causal mediation to support such claims. In the current paper, we set out to review the ways researchers support their use of mediation statements and also propose critical considerations on this front. We start with more conventional methods for testing mediation, discuss variants of the conventional approach, discuss the limitations of such methods as we see them, and end with our preferred mediation approach. DOI: 10.2458/azu_jmmss.v4i1.17761

Social cues-customer behavior relationship : the mediating role of emotions and cognition

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Nusairat, NM; Akhorshaideh, AHO; Rashid, T; Sahadev, S; Rembielak, G

2017-01-01

This paper investigates the effect of social cues in a mall’s shopping environment on customer behavior. Two competing mediation scenarios are assessed: emotion-cognition and cognition-emotion in a stimulus-organism-response (SOR)-based framework. Although the role of social cues in driving customer behavior in shopping contexts is largely addressed in the extant literature, the mechanism of the effect is still under-researched area and this study is an attempt to fill this gap.\\ud The concep...

The mediating effects of depressive symptoms and sleep quality on the relationship between the non-medical use of prescription drugs and suicidal behaviors among Chinese adolescents.

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Wang, Juan; Xu, Yan; Guo, Lan; Deng, Jian-Xiong; Huang, Jing-Hui; Huang, Guo-Liang; Gao, Xue; Wu, Hong; Pan, Si-Yuan; Lu, Ci-Yong

2017-09-01

The nature of the relationship between the non-medical use of prescription drugs (NMUPD) and suicide has not been clearly elucidated. Some studies have suggested that the relationship between substance use and suicidal ideation may be spurious and could be explained by other variables. A school-based cross-sectional study was performed in Guangzhou. A total of 5853 students completed questionnaires and were included in the study. NMUPD, alcohol use, illicit drug use, depressive symptoms, sleep quality, and suicidal behaviors were assessed. The mediating effects of depressive symptoms and sleep quality on the relationship between NMUPD and suicidal behaviors were examined using a structural equation model. In the simple model without mediation, a positive relationship between NMUPD and suicidal behaviors in adolescents was found, which was independent of effects from the use of other substances. Both depressive symptoms and sleep quality were significant mediators of this relationship. Public health and educational professionals should survey depressive symptoms and sleep quality and provide interventions when managing suicidal behaviors among adolescents engaging in NMUPD. Copyright © 2017 Elsevier B.V. All rights reserved.

Mediator or moderator? The role of mindfulness in the association between child behavior problems and parental stress.

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Chan, Tim Oi; Lam, Shui-Fong

2017-11-01

Raising a child with intellectual disability (ID) may be stressful for parents. Previous studies have suggested the mediating role of mindfulness in the association between child behavior problems and parental stress. The present study examined whether this mediating role is a result of parents' self-report bias. It also explored whether mindfulness has a moderating role instead when child behavior problems are reported by teachers. In a questionnaire survey, 271 Chinese parents of children with ID in 6 Hong Kong special schools reported their levels of stress and mindfulness, as well as their children's behavior problems. The latter was also reported by teachers. When child behavior problems were reported by parents, parental mindfulness was a mediator between child behavior problems and parental stress. In contrast, when child behavior problems were reported by teachers, parental mindfulness was a moderator between child behavior problems and parental stress. The mediation role of mindfulness maybe an artifact of measurement. The findings provide an encouraging message that parenting a child with ID and behavior problems does not necessarily mean more stress among all parents. Parents with a high level of mindfulness may experience less stress than those with a low level of mindfulness. Parents of children with intellectual disability (ID) tend to report high psychological stress. Previous self-report studies have identified mindfulness as a mediator in the association between child behavior problems and parental stress. The present study differs from previous studies by including third-party's reports. It has contributed to the existing body of knowledge in two respects. First, it examined whether the mediation effect resulted from parent self-report bias. Second, it tested an alternative hypothesis of the moderation effect by using teachers' reports to measure child behavior problems. The results showed that when child behavior problems were measured by parents

Response expectancies, treatment credibility, and hypnotic suggestibility: mediator and moderator effects in hypnotic and cognitive-behavioral pain interventions.

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Milling, Leonard S; Shores, Jessica S; Coursen, Elizabeth L; Menario, Deanna J; Farris, Catherine D

2007-04-01

Several studies have shown that response expectancies are an important mechanism of popular psychological interventions for pain. However, there has been no research on whether response expectancies and treatment credibility independently mediate hypnotic and cognitive-behavioral pain interventions and whether the pattern of mediation is affected by experience with the interventions. Also, past research has indicated that hypnotic pain interventions may be moderated by hypnotic suggestibility. However, these studies have typically failed to measure the full range of suggestibility and have assessed pain reduction and suggestibility in the same experimental context, possibly inflating the association between these variables. To clarify the mediator role of response expectancies and treatment credibility, and the moderator role of hypnotic suggestibility in the hypnotic and cognitive-behavioral reduction of pain. Approximately 300 participants were assessed for suggestibility. Then, as part of an apparently unrelated experiment, 124 of these individuals received analogue cognitive-behavioral, hypnotic, or placebo control pain interventions. Response expectancies and credibility independently mediated treatment. The extent of mediation increased as participants gained more experience with the interventions. Suggestibility moderated treatment and was associated with relief only from the hypnotic intervention. Response expectancies and treatment credibility are unique mechanisms of hypnotic and cognitive-behavioral pain interventions. Hypnotic suggestibility predicts relief from hypnotic pain interventions and this association is not simply an artifact of measuring suggestibility and pain reduction in the same experimental context. The relationship between suggestibility and hypnotic pain reduction appears to be linear in nature.

Mediation of effects of a theory-based behavioral intervention on self-reported physical activity in South African men.

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Jemmott, John B; Stephens-Shields, Alisa; O'Leary, Ann; Jemmott, Loretta Sweet; Teitelman, Anne; Ngwane, Zolani; Mtose, Xoliswa

2015-03-01

Increasing physical activity is an important public-health goal worldwide, but there are few published mediation analyses of physical-activity interventions in low-to-middle-income countries like South Africa undergoing a health transition involving markedly increased mortality from non-communicable diseases. This article reports secondary analyses on the mediation of a theory-of-planned-behavior-based behavioral intervention that increased self-reported physical activity in a trial with 1181 men in Eastern Cape Province, South Africa. Twenty-two matched-pairs of neighborhoods were randomly selected. Within pairs, neighborhoods were randomized to a health-promotion intervention or an attention-matched control intervention with baseline, immediate-post, and 6- and 12-month post-intervention assessments. Theory-of-planned-behavior constructs measured immediately post-intervention were tested as potential mediators of the primary outcome, self-reported physical activity averaged over the 6- and 12-month post-intervention assessments, using a product-of-coefficients approach in a generalized-estimating-equations framework. Data were collected in 2007-2010. Attitude, subjective norm, self-efficacy, and intention were significant mediators of intervention-induced increases in self-reported physical activity. The descriptive norm, not affected by the intervention, was not a mediator, but predicted increased self-reported physical activity. The results suggest that interventions targeting theory-of-planned-behavior constructs may contribute to efforts to increase physical activity to reduce the burden of non-communicable diseases among South African men. Copyright © 2015 Elsevier Inc. All rights reserved.

Mediation and modification of genetic susceptibility to obesity by eating behaviors.

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de Lauzon-Guillain, Blandine; Clifton, Emma Ad; Day, Felix R; Clément, Karine; Brage, Soren; Forouhi, Nita G; Griffin, Simon J; Koudou, Yves Akoli; Pelloux, Véronique; Wareham, Nicholas J; Charles, Marie-Aline; Heude, Barbara; Ong, Ken K

2017-10-01

Background: Many genetic variants show highly robust associations with body mass index (BMI). However, the mechanisms through which genetic susceptibility to obesity operates are not well understood. Potentially modifiable mechanisms, including eating behaviors, are of particular interest to public health. Objective: Here we explore whether eating behaviors mediate or modify genetic susceptibility to obesity. Design: Genetic risk scores for BMI (BMI-GRSs) were calculated for 3515 and 2154 adults in the Fenland and EDEN (Etude des déterminants pré et postnatals de la santé et du développement de l'enfant) population-based cohort studies, respectively. The eating behaviors-emotional eating, uncontrolled eating, and cognitive restraint-were measured through the use of a validated questionnaire. The mediating effect of each eating behavior on the association between the BMI-GRS and measured BMI was assessed by using the Sobel test. In addition, we tested for interactions between each eating behavior and the BMI-GRS on BMI. Results: The association between the BMI-GRS and BMI was mediated by both emotional eating (EDEN: P- Sobel = 0.01; Fenland: P- Sobel = 0.02) and uncontrolled eating (EDEN: P- Sobel = 0.04; Fenland: P -Sobel = 0.0006) in both sexes combined. Cognitive restraint did not mediate this association ( P -Sobel > 0.10), except among EDEN women ( P -Sobel = 0.0009). Cognitive restraint modified the relation between the BMI-GRS and BMI among men (EDEN: P -interaction = 0.0001; Fenland: P -interaction = 0.04) and Fenland women ( P -interaction = 0.0004). By tertiles of cognitive restraint, the association between the BMI-GRS and BMI was strongest in the lowest tertile of cognitive restraint, and weakest in the highest tertile. Conclusions: Genetic susceptibility to obesity was partially mediated by the "appetitive" eating behavior traits (uncontrolled and emotional eating) and, in 3 of the 4 population groups studied, was modified by cognitive restraint

Social Cognitive Constructs Did Not Mediate the BEAT Cancer Intervention Effects on Objective Physical Activity Behavior Based on Multivariable Path Analysis.

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Rogers, Laura Q; Courneya, Kerry S; Anton, Phillip M; Hopkins-Price, Patricia; Verhulst, Steven; Robbs, Randall S; Vicari, Sandra K; McAuley, Edward

2017-04-01

Most breast cancer survivors do not meet physical activity recommendations. Understanding mediators of physical activity behavior change can improve interventions designed to increase physical activity in this at-risk population. Study aims were to determine the 3-month Better Exercise Adherence after Treatment for Cancer (BEAT Cancer) behavior change intervention effects on social cognitive theory constructs and the mediating role of any changes on the increase in accelerometer-measured physical activity previously reported. Post-treatment breast cancer survivors (N = 222) were randomized to BEAT Cancer or usual care. Assessments occurred at baseline, 3 months (M3), and 6 months (M6). Adjusted linear mixed model analysis of variance determined intervention effects on walking self-efficacy, outcome expectations, goal setting, and perceived barrier interference at M3. Path analysis determined mediation of intervention effects on physical activity at M6 by changes in social cognitive constructs during the intervention (i.e., baseline to M3). BEAT Cancer significantly improved self-efficacy, goals, negative outcome expectations, and barriers. Total path analysis model explained 24 % of the variance in M6 physical activity. There were significant paths from randomized intervention group to self-efficacy (β = 0.15, p social cognitive constructs, no significant indirect effects on physical activity improvements 3 months post-intervention were observed (NCT00929617).

The virtual Midas touch : helping behavior after a mediated social touch

NARCIS (Netherlands)

Haans, A.; IJsselsteijn, W.A.; Graus, M.P.; Salminen, J.A.

2008-01-01

A brief touch on the upper arm increases people's altruistic behavior and willingness to comply to a request. In this paper, we investigate whether this Midas Touch effect would also occur under mediated conditions (i.e., a text messaging system and an arm strap equipped with vibrotactile

Stress mediates the relationship between sexual orientation and behavioral risk disparities.

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Jabson, Jennifer M; Farmer, Grant W; Bowen, Deborah J

2014-04-26

Growing evidence documents elevated behavioral risk among sexual-minorities, including gay, lesbian, and bisexual individuals; however, tests of biological or psychological indicators of stress as explanations for these disparities have not been conducted. Data were from the 2005-2010 National Health and Nutrition Examination Survey, and included 9662 participants; 9254 heterosexuals, 153 gays/lesbians and 255 bisexuals. Associations between sexual orientation and tobacco, alcohol, substance, and marijuana use, and body mass index, were tested using the chi-square test. Stress, operationalized as depressive symptoms and elevated C-reactive protein, was tested as mediating the association between sexual orientation and behavioral health risks. Multiple logistic regression was used to test for mediation effects, and the Sobel test was used to evaluate the statistical significance of the meditating effect. Gays/lesbians and bisexuals were more likely to report current smoking (p sexual orientation and current smoking (aOR 2.04, 95% CI 1.59, 2.63), lifetime history of substance use (aOR 3.30 95% CI 2.20, 4.96), and lifetime history of marijuana use (aOR 2.90, 95% CI 2.02, 4.16), among bisexuals only. C-reactive protein did not mediate the sexual orientation/behavior relationship. Higher prevalence of current smoking and lifetime history of substance use was observed among sexual minorities compared to heterosexuals. Among bisexuals, depressive symptoms accounted for only 0.9-3% of the reduction in the association between sexual orientation and marijuana use and tobacco use, respectively. More comprehensive assessments of stress are needed to inform explanations of the disparities in behavioral risk observed among sexual minorities.

Moms in motion: a group-mediated cognitive-behavioral physical activity intervention

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Brawley Lawrence R

2006-08-01

Full Text Available Abstract Background When examining the prevalence of physical inactivity by gender and age, women over the age of 25 are at an increased risk for sedentary behavior. Childbearing and motherhood have been explored as one possible explanation for this increased risk. Post natal exercise studies to date demonstrate promising physical and psychological outcomes, however few physical activity interventions have been theory-driven and tailored to post natal exercise initiates. The purpose of this study was to compare the effects of a group-mediated cognitive behavioral intervention based upon social-cognitive theory and group dynamics (GMCB to a standard care postnatal exercise program (SE. Method A randomized, two-arm intervention design was used. Fifty-seven post natal women were randomized to one of two conditions: (1 a standard exercise treatment (SE and (2 a standard exercise treatment plus group-mediated cognitive behavioral intervention (GMCB. Participants in both conditions participated in a four-week intensive phase where participants received standard exercise training. In addition, GMCB participants received self-regulatory behavioral skills training via six group-mediated counseling sessions. Following the intensive phase, participants engaged in a four-week home-based phase of self-structured exercise. Measures of physical activity, barrier efficacy, and proximal outcome expectations were administered and data were analyzed using ANCOVA procedures. Results and discussion ANCOVA of change scores for frequency, minutes, and volume of physical activity revealed significant treatment effects over the intensive and home-based phases (p's Conclusion While both exercise programs resulted in improvements to exercise participation, the GMCB intervention produced greater improvement in overall physical activity, barrier efficacy and proximal outcome expectations.

Attitude as a Mediator between Acculturation and Behavioral Intention.

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Ebrahim, Nasser B; Davis, Sharon; Tomaka, Joe

2016-11-01

Immigrants, specifically African-born black persons, are affected by the HIV epidemic in the U.S. The low level of condom use among immigrants is a risk factor for contracting HIV and STIs. Immigrants go through acculturation process in their new adopted countries-a process reported to influence many health risks and protective factors; however, the mechanism through which acculturation influences health behaviors is not well understood. Thus, study examined the mediating role of attitude in the relationship between acculturation and the intention to use male condoms in steady heterosexual relationships among Somali and Ethiopian immigrants in Minnesota. The study was a regression analysis and the method of data collection cross-sectional. Participants were (n = 205) Somali and Ethiopian immigrants in Minnesota who volunteered for the study. Study participants responded to questions on attitudes, behavioral intention, and acculturation levels. The indirect effect of acculturation through the mediator, attitude, was not significant, product coefficient (a × b) = 0.04, 95% CI: [0.00, 0.11]; hence attitude did not mediate the relationship between acculturation and the intention to use condoms in the study population. However, there were significant direct and total effects of acculturation (c' = .27, p < .05; c = .31, p < .05), respectively, on intention to use condoms. Results of the study may suggest that public health intervention strategies targeting condom use among immigrants should incorporate programs that improve English language training tailored to the cultural practices and values of the immigrants, and consider the effect of acculturation on condom use. © 2016 Wiley Periodicals, Inc.

The Effects of Mediated Exposure to Ethnic-Political Violence on Middle East Youth’s Subsequent Post-Traumatic Stress Symptoms and Aggressive Behavior

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Gvirsman, Shira Dvir; Huesmann, L. Rowell; Dubow, Eric F.; Landau, Simha F.; Shikaki, Khalil; Boxer, Paul

2015-01-01

This study introduces the concept of chronic (i.e., repeated and cumulative) mediated exposure to political violence and investigates its effects on aggressive behavior and post-traumatic stress (PTS) symptoms in young viewers. Embracing the risk-matrix approach, these effects are studied alongside other childhood risk factors that influence maladjustment. A longitudinal study was conducted on a sample of youth who experience the Israeli-Palestinian conflict firsthand (N = 1,207). As hypothesized, higher levels of chronic mediated exposure were longitudinally related to higher levels of PTS symptoms and aggression at peers independently of exposure to violence in other contexts. In the case of aggressive behavior, structural equation analysis (SEM) analyses suggest that, while it is likely there are causal effects in both directions, the bigger effect is probably for exposure to violence stimulating aggression than for aggression stimulating exposure to violence. Both the longitudinal effects on aggression and PTS symptoms were especially strong among youth who demonstrated initially higher levels of the same type of maladjustment. These results support the conceptualization of the relation between media violence and behaviors as “reciprocally determined” or “downward spirals” and highlight the contribution of the risk-matrix approach to the analysis of childhood maladjustment. PMID:26456988

Parenting behavior and the Interpersonal-Psychological Theory of Suicide: a mediated moderation analysis with adolescents.

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Cero, Ian; Sifers, Sarah K

2013-09-25

Multiple features of parenting have been associated with development of suicide-related behaviors in adolescents. However, findings are inconsistent on which aspects of parenting are protective or harmful and why. This investigation sought to reconcile these discrepancies through the Interpersonal-Psychological Theory of Suicide (IPTS), which argues that suicide ideation and the capability to attempt suicide are etiologically distinct. Responses of 200 Midwestern public school students to the Profiles of Student Life: Attitudes and Behavior survey were analyzed using mediated moderation analysis. Participant sex significantly moderated the relationships between parenting variables and suicide attempts and these relationships were accounted for by IPTS variables. Specifically, the effect of parental support on suicide attempts was twice as strong for girls. Self-esteem mediated this interaction (b=-.011, SE(boot)=.008, p<.05, κ(2)=.07). Conversely, the effect of parental boundaries on suicide attempts was significant for boys, but not for girls, and was mediated by exposure to violence (b=.029, SE(boot)=.021, p<.05, κ(2)=.07). This study involved retrospective report with proxy-measures of IPTS constructs. Future research should consider multiple informants and additional measures. Findings highlight potential mechanisms by which parenting behaviors could influence sex differences in adolescent suicide-relate behaviors, and that some parenting behavior is associated with reduced adolescent suicide attempts. Findings also suggest the IPTS is able to account for previously identified inconsistencies in the effects of parenting behaviors on adolescent suicide-related behaviors. Implications for theory and intervention are discussed. © 2013 Elsevier B.V. All rights reserved.

Self-reported impulsivity, but not behavioral approach or inhibition, mediates the relationship between stress and self-control.

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Hamilton, Kristen R; Sinha, Rajita; Potenza, Marc N

2014-11-01

Stress has been associated with poor self-control. Individual differences in impulsivity and other behavioral tendencies may influence the relationship of stress with self-control, although this possibility has not been examined to date. The present research investigated whether cumulative stress is associated with poor self-control, and whether this relationship is mediated by impulsivity, behavioral approach, and behavioral inhibition in men and women. A community sample of 566 adults (319 women and 247 men) was assessed on the Cumulative Adversity Interview, Brief Self-control Scale, Barratt Impulsivity Scale, and Behavioral Activation System and Behavioral Inhibition System Scale (BIS/BAS). Data were analyzed using regression and bootstrapping techniques. In the total sample, the effects of cumulative stress on self-control were mediated by impulsivity. Neither behavioral inhibition nor behavioral approach mediated the association between cumulative stress and self-control in the total sample. Results were similar when men and women were considered separately, with impulsivity, but not behavioral inhibition or approach, mediating the association between cumulative stress and self-control. Impulsive individuals might benefit preferentially from interventions focusing on stress management and strategies for improving self-control. Copyright © 2014 Elsevier Ltd. All rights reserved.

The Influence of Leader Prestige on Subordinates’ Job Attitude and Behavior: mediation and moderation effects

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He Li

2015-01-01

Full Text Available To explore the problem of leader prestige Chinese is familiar with, an empirical study was conducted. Base on the results of a sample of full-time employees in enterprises, the present study analyzed the effects of leader prestige on subordinates’ job attitude and behavior. The study proves that leader prestige can improve leader trust and organization identification of subordinates. Leader prestige can give birth to positive effects on leader trust, and then improve organizational identification of subordinates. Leader prestige has positive effects on job satisfaction and job engagement by the full mediator of organizational identification and leader trust. Leader’s power and leader-member exchange can moderate the positive relationship between leader prestige and subordinates’ organizational identification, but cannot moderate the relationship between leader prestige and leader trust.

Self-Regulatory Processes Mediate the Intention-Behavior Relation for Adherence and Exercise Behaviors

NARCIS (Netherlands)

Bruin, de M.; Sheeran, P.; Kok, G.; Hiemstra, A.; Prins, J.M.; Hospers, H.J.; Breukelen, G.J.P.

2012-01-01

Objectives: Understanding the gap between people's intentions and actual health behavior is an important issue in health psychology. Our aim in this study was to investigate whether self-regulatory processes (monitoring goal progress and responding to discrepancies) mediate the intention-behavior

Ethical leader behavior and leader effectiveness: the role of prototypicality and trust

NARCIS (Netherlands)

Kalshoven, K.; den Hartog, D.N.

2009-01-01

The study examines factors that mediate the impact of ethical leader behavior on leader effectiveness. Little is known about how ethical leadership impacts leader effectiveness. We hypothesized that prototypicality and trust sequentially mediate the relationship between ethical leader behavior and

Moderators of the Mediated Effect of Intentions, Planning, and Saturated-Fat Intake in Obese Individuals

NARCIS (Netherlands)

Soureti, A.; Hurling, R.; van Mechelen, W.; Cobain, M.; Chin A Paw, M.J.M.

2012-01-01

Objective: The present study aimed to advance our understanding of health-related theory, that is, the alleged intention-behavior gap in an obese population. It examined the mediating effects of planning on the intention-behavior relationship and the moderated mediation effects of age, self-efficacy

Mediators of the effects on fatigue of pragmatic rehabilitation for chronic fatigue syndrome.

Science.gov (United States)

Wearden, Alison J; Emsley, Richard

2013-10-01

To examine potential mediators of the effect of pragmatic rehabilitation on improvements in fatigue following a randomized controlled trial for patients with chronic fatigue syndrome (CFS/ME) in primary care (IRCTN 74156610). Patients fulfilled the Oxford criteria for CFS. Ninety-five patients were randomized to pragmatic rehabilitation and 100 to general practitioner (GP) treatment as usual. The outcome was the Chalder fatigue scale score (0123 scoring) at end of treatment (20 weeks) and 1-year follow up (70 weeks). First, the effect of treatment on potential mediators was assessed. Then fatigue was regressed on significant mediators, treatment allocation, and baseline measures of fatigue and significant mediators. Reduction in limiting activities at 20 weeks mediated the positive effect of pragmatic rehabilitation on fatigue at 70 weeks (mediated effect size = -2.64, SE = 0.81, p = .001, proportion of effect mediated = 82.0%). Reduction in catastrophizing at 20 weeks mediated the positive effect of pragmatic rehabilitation on fatigue at 70 weeks (mediated effect size = -1.39, SE = 0.61, p = .023, proportion of effect mediated = 43.2%). Reductions in 70-week measures of fear avoidance, embarrassment avoidance, limiting activities, and all-or-nothing behavior all mediated improvement in fatigue at 70 weeks, although the causal direction of these cross-sectional effects cannot be determined. There were no between-group differences on measures of exercise capacity (a timed step test). Improvements in fatigue following pragmatic rehabilitation are related to changes in behavioral responses to and beliefs about fatigue.

Time perspective and weight management behaviors in newly diagnosed Type 2 diabetes: a mediational analysis.

Science.gov (United States)

Hall, Peter A; Fong, Geoffrey T; Cheng, Alice Y

2012-12-01

The primary objective of the current study was to examine the extent to which domain-specific time perspective predicts weight management behaviors (dietary behavior and physical activity) among those newly diagnosed with Type 2 diabetes. A secondary objective was to test potential mediators of the hypothesized effect (behavioral intention, self-efficacy and control beliefs). A total of 204 adults newly diagnosed (≤6 months) with Type 2 diabetes participated in the study, which included a baseline assessment of domain-general and domain-specific time perspective, as well as strength of intention to perform two weight-management behaviors (dietary choice and physical activity); both weight-management behaviors were assessed again at 6 month follow-up. Hierarchical multiple regression analyses revealed a prospective association between domain-specific time perspective and uptake of weight management behaviors. Individuals with newly diagnosed T2DM possessing a future-oriented time perspective reported making less frequent fatty food choices and greater increases in physical activity over the 6-month follow-up interval. These effects were selectively mediated by intention strength, and not competing social cognitive variables. For both behaviors, the total effects and meditational models were robust to adjustments for demographics, body composition and disease variables. A future-oriented time perspective is prospectively associated with superior uptake of weight management behaviors among those with newly diagnosed Type 2 diabetes. The facilitating effect of future-oriented thinking appears to occur via enhanced strength of intentions to perform weight management behaviors.

Ethical leader behavior and leader effectiveness: the role of prototypicality and trust

OpenAIRE

Kalshoven, K.; den Hartog, D.N.

2009-01-01

The study examines factors that mediate the impact of ethical leader behavior on leader effectiveness. Little is known about how ethical leadership impacts leader effectiveness. We hypothesized that prototypicality and trust sequentially mediate the relationship between ethical leader behavior and perceived leader effectiveness. The group prototype forms an ideal representation of the group’s identity, prescribing appropriate attitudes and behaviors. Ethical leaders are role models and thus a...

Mediation and Moderation of Divorce Effects on Children’s Behavior Problems

Science.gov (United States)

Weaver, Jennifer; Schofield, Thomas

2016-01-01

Using data from the NICHD Study of Early Child Care and Youth Development, we examined children’s internalizing and externalizing behavior problems from age 5 to age 15 in relation to whether they had experienced a parental divorce. Children from divorced families had more behavior problems compared with a propensity score-matched sample of children from intact families according to both teachers and mothers. They exhibited more internalizing and externalizing problems at the first assessment after the parents’ separation and at the last available assessment (age 11 for teacher reports, or age 15 for mother reports). Divorce also predicted both short-term and long-term rank-order increases in behavior problems. Associations between divorce and child behavior problems were moderated by family income (assessed before the divorce) such that children from families with higher incomes prior to the separation had fewer internalizing problems than children from families with lower incomes prior to the separation. Higher levels of pre-divorce maternal sensitivity and child IQ also functioned as protective factors for children of divorce. Mediation analyses showed that children were more likely to exhibit behavior problems after the divorce if their post-divorce home environment was less supportive and stimulating, their mother was less sensitive and more depressed, and their household income was lower. We discuss avenues for intervention, particularly efforts to improve the quality of home environments in divorced families. PMID:25419913

Health-Related Behavior Mediates the Association Between Personality and Memory Performance in Older Adults.

Science.gov (United States)

Allen, Mark S; Laborde, Sylvain; Walter, Emma E

2017-03-01

This prospective study explored the potential mediating role of health-related behavior (alcohol involvement, diet, television viewing, and physical activity) in the association between personality and change in memory performance over 2 years. A nationally representative sample of 8,376 U.K. participants aged 55 years and older (4,572 women, 3,804 men) completed self-report measures of personality and health-related behavior in 2010, and completed a memory performance task in 2010 and 2012. After removing variance associated with potential confounding variables, neuroticism and agreeableness had negative associations, and openness and conscientiousness positive associations with change in memory performance. There were no moderation effects by age, sex, education level, or ethnicity. Multiple mediator models demonstrated that physical activity, television viewing, and alcohol intake mediated associations between personality and change in memory performance. These findings provide evidence that the association between personality and memory performance in older adults can be explained, in part, through health-related behavior.

Does parental mediation of media influence child outcomes? A meta-analysis on media time, aggression, substance use, and sexual behavior.

Science.gov (United States)

Collier, Kevin M; Coyne, Sarah M; Rasmussen, Eric E; Hawkins, Alan J; Padilla-Walker, Laura M; Erickson, Sage E; Memmott-Elison, Madison K

2016-05-01

The current study examined how parental mediation of media (restrictive mediation, active mediation, and coviewing) influenced child outcomes. Three meta-analyses, 1 for each type of mediation, were conducted on a total of 57 studies. Each analysis assessed the effectiveness of parental mediation on 4 pertinent child outcomes: media use, aggression, substance use, and sexual behavior. The overall results indicated small, but significant relationships between child outcomes and restrictive mediation (r+ = -.06), and coviewing (r+ = .09). Overall active mediation was nonsignificant, though active mediation was individually related to lower levels of aggression (r+ = -.08), sexual behavior (r+ = -.06), and substance use (r+ = -.11). This analysis revealed that parents may have the ability to mitigate some of the adverse effects of the media by using certain mediation strategies. Overall, a cooperative effort from the communication and parenting fields is necessary for a comprehensive analysis of parental mediation as well as a disentanglement of the various parental mediation measures. (PsycINFO Database Record (c) 2016 APA, all rights reserved).

The role of exercise dependence for the relationship between exercise behavior and eating pathology: mediator or moderator?

Science.gov (United States)

Cook, Brian J; Hausenblas, Heather A

2008-05-01

Our study examined the potential mediating or moderating effect of exercise dependence on the exercise-eating pathology relationship. Female university students (N = 330) completed Internet-based self-report measures of exercise behavior, exercise dependence, and eating pathology. Exercise dependence served as a mediator for the relationship between exercise and eating pathology. This unidirectional causal model suggests that an individual's pathological motivation or compulsion to exercise is the critical mediating component in the exercise-eating pathology relationship. The best target for removing the link between exercise behavior and eating pathology may be reformulating exercise dependence symptoms.

Testing a multiple mediator model of the effect of childhood sexual abuse on adolescent sexual victimization.

Science.gov (United States)

Bramsen, Rikke H; Lasgaard, Mathias; Koss, Mary P; Shevlin, Mark; Elklit, Ask; Banner, Jytte

2013-01-01

The present study modeled the direct relationship between child sexual abuse (CSA) and adolescent peer-to-peer sexual victimization (APSV) and the mediated effect via variables representing the number of sexual partners, sexual risk behavior, and signaling sexual boundaries. A cross-sectional study on the effect of CSA on APSV was conducted, utilizing a multiple mediator model. Mediated and direct effects in the model were estimated employing Mplus using bootstrapped percentile based confidence intervals to test for significance of mediated effects. The study employed 327 Danish female adolescents with a mean age of 14.9 years (SD = 0.5). The estimates from the mediational model indicated full mediation of the effect of CSA on APSV via number of sexual partners and sexual risk behavior. The current study suggests that the link between CSA and APSV was mediated by sexual behaviors specifically pertaining to situations of social peer interaction, rather than directly on prior experiences of sexual victimization. The present study identifies a modifiable target area for intervention to reduce adolescent sexual revictimization. © 2013 American Orthopsychiatric Association.

Social attraction in video-mediated communication : The role of nonverbal affiliative behavior

NARCIS (Netherlands)

Croes, Emmelyn; Antheunis, Marjolijn; Schouten, Alexander; Krahmer, Emiel

2018-01-01

The first aim of this study was to analyze video-mediated communication (VMC), in comparison to face-to-face (FTF) communication, and the effect it has on how communicators express nonverbal affiliative behaviors relevant for social attraction. Second, this study aimed to discover whether these

Self-regulatory processes mediate the intention-behavior relation for adherence and exercise behaviors.

Science.gov (United States)

de Bruin, Marijn; Sheeran, Paschal; Kok, Gerjo; Hiemstra, Anneke; Prins, Jan M; Hospers, Harm J; van Breukelen, Gerard J P

2012-11-01

Understanding the gap between people's intentions and actual health behavior is an important issue in health psychology. Our aim in this study was to investigate whether self-regulatory processes (monitoring goal progress and responding to discrepancies) mediate the intention-behavior relation in relation to HIV medication adherence (Study 1) and intensive exercise behavior (Study 2). In Study 1, questionnaire and electronically monitored adherence data were collected at baseline and 3 months later from patients in the control arm of an HIV-adherence intervention study. In Study 2, questionnaire data was collected at 3 time points 6-weeks apart in a cohort study of physical activity. Complete data at all time points were obtained from 51 HIV-infected patients and 499 intensive exercise participants. Intentions were good predictors of behavior and explained 25 to 30% of the variance. Self-regulatory processes explained an additional 11% (Study 1) and 6% (Study 2) of variance in behavior on top of intentions. Regression and bootstrap analyses revealed at least partial, and possibly full, mediation of the intention-behavior relation by self-regulatory processes. The present studies indicate that self-regulatory processes may explain how intentions drive behavior. Future tests, using different health behaviors and experimental designs, could firmly establish whether self-regulatory processes complement current health behavior theories and should become routine targets for intervention. (PsycINFO Database Record (c) 2012 APA, all rights reserved).

The mediating effects of self-leadership on perceived entrepreneurial orientation and innovative work behavior in the banking sector.

Science.gov (United States)

Kör, Burcu

2016-01-01

Innovative work behavior has been one of the essential attribute of high performing firms, and the roles of entrepreneurial orientation and self-leadership have been important for promoting innovative work behavior. This study advances research on innovative work behavior by examining the mediating role of self-leadership in the relationship between perceived entrepreneurial orientation and innovative work behavior. Structural equation modelling is employed to analyze data from a survey of 404 employees in banking sector. The results of reliability measures and confirmatory factor analysis strongly support the scale of the study. The results from an empirical survey study in the deposit banks reveal that participants' perceptions about high levels of entrepreneurial orientation have a positive impact on innovative work behavior. The results also provide support for the full mediating role of self-leadership in the relationship between participants' perceptions of entrepreneurial orientation and innovative work behavior. Additionally, this study provides some implications for practitioners in the banking sector to facilitate innovative work behavior through entrepreneurial orientation and self- leadership.

Preliminary Evidence for Cognitive Mediation During Cognitive–Behavioral Therapy of Panic Disorder

Science.gov (United States)

Hofmann, Stefan G.; Suvak, Michael K.; Barlow, David H.; Shear, M. Katherine; Meuret, Alicia E.; Rosenfield, David; Gorman, Jack M.; Woods, Scott W.

2007-01-01

Cognitive–behavioral therapy (CBT) and pharmacotherapy are similarly effective for treating panic disorder with mild or no agoraphobia, but little is known about the mechanism through which these treatments work. The present study examined some of the criteria for cognitive mediation of treatment change in CBT alone, imipramine alone, CBT plus imipramine, and CBT plus placebo. Ninety-one individuals who received 1 of these interventions were assessed before and after acute treatment, and after a 6-month maintenance period. Multilevel moderated mediation analyses provided preliminary support for the notion that changes in panic-related cognitions mediate changes in panic severity only in treatments that include CBT. PMID:17563154

The Effects of Subjective Loss of Control on Risk-taking Behavior: The Mediating Role of Anger

Directory of Open Access Journals (Sweden)

Birgit M. Beisswingert

2015-06-01

Full Text Available Based on the Appraisal Tendency Framework on the antecedents and consequences of emotions two experimental studies examined the relationship between externally caused loss of control experiences and risk-taking behavior, as well as the assumed mediation of this relationship by the emotion anger. An experimental paradigm for inducing externally caused and consequently externally attributed loss of control which should lead to experiences of anger was developed and pretested in a Pilot Study. The relationship between loss of control experiences, anger and risk-taking behavior was investigated using two separate student samples from Germany (N = 84, 54% female and China (N = 125; 64% female. In line with our hypotheses, results showed that anger mediated the link between subjective loss of control experiences and increasing risk-taking behavior. Multiple group comparisons revealing similar patterns in both samples affirmed the results’ cross-cultural generalizability. These results implicate that anger makes people less risk averse in the process of economic decision making.

The effects of subjective loss of control on risk-taking behavior: the mediating role of anger

Science.gov (United States)

Beisswingert, Birgit M.; Zhang, Keshun; Goetz, Thomas; Fang, Ping; Fischbacher, Urs

2015-01-01

Based on the Appraisal Tendency Framework on the antecedents and consequences of emotions two experimental studies examined the relationship between externally caused loss of control experiences and risk-taking behavior, as well as the assumed mediation of this relationship by the emotion anger. An experimental paradigm for inducing externally caused and consequently externally attributed loss of control which should lead to experiences of anger was developed and pretested in a Pilot Study. The relationship between loss of control experiences, anger, and risk-taking behavior was investigated using two separate student samples from Germany (N = 84, 54% female) and China (N = 125; 64% female). In line with our hypotheses, results showed that anger mediated the link between subjective loss of control experiences and increasing risk-taking behavior. Multiple group comparisons revealing similar patterns in both samples affirmed the results’ cross-cultural generalizability. These results implicate that anger makes people less risk averse in the process of economic decision making. PMID:26217244

[Socioeconomical level and behavior in school-age children: the mediating role of parents].

Science.gov (United States)

Ulloa Vidal, Natalia; Cova Solar, Félix; Bustos N, Claudio

2017-06-01

A determinant of particular relevance in human development is the socioeconomic status (SES) and, specifically, low SES and poverty. Likewise, family environment is essential in the development of children and a potential mediator or moderator of the effect of broader social conditions. To analyze the role of parenting stress as a mediating variable of the relationship between SES and both externalized and internalized behaviors in preschool children. Descriptive secondary base study based on the Longitudinal Survey of Chilean First Infancy that selected a stratified sample, representative by clusters, of 9.996 children from 3 to 5 years old and their caregivers, that completed a battery of instruments for measuring SES variables, parenting stress and externalized and internalized behaviors. The analysis used a linear model with least square estimate. As hypothesis testing, the Dm (an adaptation of the F-test for multiple imputation method) was used. The mediation model of parenting stress in the relationship between SES and both externalized and internalized behaviors was confirmed for the latter; regarding externalized behaviors a model of moderation was observed, being the stress influence lower on the low SES. Parental stress showed a clear relationship with the presence of externalized and internalized behaviors, stronger than the SES. The relationship between SES and parenting stress is very important to understand the processes that affect children’s development.

Child-Care Instability and Behavior Problems: Does Parenting Stress Mediate the Relationship?

Science.gov (United States)

Pilarz, Alejandra Ros; Hill, Heather D

2017-10-01

Child care instability is associated with more behavior problems in young children, but the mechanisms of this relationship are not well understood. Theoretically, this relationship is likely to emerge, at least in part, because care instability leads to increased parenting stress. Moreover, low socioeconomic status and single-mother families may be more vulnerable to the effects of instability. This study tested these hypotheses using data from the Fragile Families and Child Wellbeing study (n=1,675) and structural equation modeling. Three types of child care instability were examined: long-term instability, multiplicity, and needing to use back-up arrangements. Overall, findings showed little evidence that parenting stress mediated the associations between care instability and child behavior problems among the full sample. Among single-mother and low-income families, however, needing to use back-up arrangements had small positive associations with parenting stress, which partially mediated the relationship between that type of care instability and child externalizing behavior problems.

Effects of peer-mediated implementation of visual scripts in middle school.

Science.gov (United States)

Ganz, Jennifer B; Heath, Amy K; Lund, Emily M; Camargo, Siglia P H; Rispoli, Mandy J; Boles, Margot; Plaisance, Lauren

2012-05-01

Although research has investigated the impact of peer-mediated interventions and visual scripts on social and communication skills in children with autism spectrum disorders, no studies to date have investigated peer-mediated implementation of scripts. This study investigated the effects of peer-implemented scripts on a middle school student with autism, intellectual impairments, and speech-language impairment via a multiple baseline single-case research design across behaviors. The target student demonstrated improvements in three communicative behaviors when implemented by a trained peer; however, behaviors did not generalize to use with an untrained typically developing peer.

Why and for Whom May Coping Planning Have Adverse Effects? A Moderated Mediation Analysis.

Science.gov (United States)

Inauen, Jennifer; Stocker, Andrea; Scholz, Urte

2018-05-09

Coping planning, the formation of plans to overcome behavioral barriers is assumed to promote health behavior maintenance, but the literature on this is inconsistent. In this study, we aimed to investigate the mechanisms of a coping planning intervention that adversely affected maintained safe water consumption. We also explored perceived behavioral difficulty as a potential moderator of coping planning interventions. In the second phase of a cluster-randomised trial, households (N = 177 analyzed) were randomly allocated to a coping planning intervention or a comparison group (repetition of interventions from first intervention phase). Safe water consumption, the mechanisms of coping planning, and perceived difficulty were measured pre-post. The data were analyzed using mediation and moderated mediation analysis. Changes in behavioral intention mediated the intervention effects on behavioral maintenance (b = -0.36, 95% CI [-0.91, -0.03]). Changes in perceived coping planning (b = 0.08, 95% CI [-0.12, 0.34]), and maintenance self-efficacy (b = -0.13, 95% CI [-0.45, 0.01]) did not mediate the effects. Prior perceived difficulty moderated the coping planning intervention effects on maintenance via intention. Coping planning may decrease motivation for health behavior maintenance for persons who experienced few barriers prior to the planning intervention. © 2018 The International Association of Applied Psychology.

Dialectical behavior therapy skills use as a mediator and outcome of treatment for borderline personality disorder.

Science.gov (United States)

Neacsiu, Andrada D; Rizvi, Shireen L; Linehan, Marsha M

2010-09-01

A central component of Dialectical Behavior Therapy (DBT) is the teaching of specific behavioral skills with the aim of helping individuals with Borderline Personality Disorder (BPD) replace maladaptive behaviors with skillful behavior. Although existing evidence indirectly supports this proposed mechanism of action, no study to date has directly tested it. Therefore, we examined the skills use of 108 women with BPD participating in one of three randomized control trials throughout one year of treatment and four months of follow-up. Using a hierarchical linear modeling approach we found that although all participants reported using some DBT skills before treatment started, participants treated with DBT reported using three times more skills at the end of treatment than participants treated with a control treatment. Significant mediation effects also indicated that DBT skills use fully mediated the decrease in suicide attempts and depression and the increase in control of anger over time. DBT skills use also partially mediated the decrease of nonsuicidal self-injury over time. Anger suppression and expression were not mediated. This study is the first to clearly support the skills deficit model for BPD by indicating that increasing skills use is a mechanism of change for suicidal behavior, depression, and anger control. Published by Elsevier Ltd.

Physician-based activity counseling: intervention effects on mediators of motivational readiness for physical activity.

Science.gov (United States)

Pinto, B M; Lynn, H; Marcus, B H; DePue, J; Goldstein, M G

2001-01-01

In theory-based interventions for behavior change, there is a need to examine the effects of interventions on the underlying theoretical constructs and the mediating role of such constructs. These two questions are addressed in the Physically Active for Life study, a randomized trial of physician-based exercise counseling for older adults. Three hundred fifty-five patients participated (intervention n = 181, control n = 174; mean age = 65.6 years). The underlying theories used were the Transtheoretical Model, Social Cognitive Theory and the constructs of decisional balance (benefits and barriers), self-efficacy, and behavioral and cognitive processes of change. Motivational readiness for physical activity and related constructs were assessed at baseline, 6 weeks, and 8 months. Linear or logistic mixed effects models were used to examine intervention effects on the constructs, and logistic mixed effects models were used for mediator analyses. At 6 weeks, the intervention had significant effects on decisional balance, self-efficacy, and behavioral processes, but these effects were not maintained at 8 months. At 6 weeks, only decisional balance and behavioral processes were identified as mediators of motivational readiness outcomes. Results suggest that interventions of greater intensity and duration may be needed for sustained changes in mediators and motivational readiness for physical activity among older adults.

Effects of cadmium on olfactory mediated behaviors and molecular biomarkers in coho salmon (Oncorhynchus kisutch)

Energy Technology Data Exchange (ETDEWEB)

Williams, Chase R.; Gallagher, Evan P., E-mail: evang3@u.washington.edu

2013-09-15

Highlights: •Low Cd exposures elicited significant olfactory mediated behavioral changes independent of histological injury. •The olfactory behavioral deficits persisted following a 16-day depuration. •Olfactory molecular biomarkers expression was strongly linked to injury to the olfactory epithelium. •Cd induced a strong antioxidant response in the coho salmon olfactory system. •Results suggest a sensitivity of salmonids to waterborne Cd. -- Abstract: The olfactory system of salmonids is sensitive to the adverse effects of metals such as copper and cadmium. In the current study, we analyzed olfactory-mediated alarm responses, epithelial injury and recovery, and a suite of olfactory molecular biomarkers encoding genes critical in maintaining olfactory function in juvenile coho salmon receiving acute exposures to cadmium (Cd). The molecular biomarkers analyzed included four G-protein coupled receptors (GPCRs) representing the two major classes of odorant receptors (salmon olfactory receptor sorb and vomeronasal receptors svra, svrb, and gpr27), as well as markers of neurite outgrowth (nrn1) and antioxidant responses to metals, including heme oxygenase 1 (hmox1), and peroxiredoxin 1 (prdx1). Coho received acute (8–168 h) exposures to 3.7 ppb and 347 ppb Cd, and a subset of fish was analyzed following a 16-day depuration. Coho exposed to 347 ppb Cd over 48 h exhibited a reduction in freeze responses, and an extensive loss of olfaction accompanied by histological injury to the olfactory epithelium. The olfactory injury in coho exposed to 347 ppb Cd was accompanied at the gene level by significant decreases in expression of the olfactory GPCRs and increased expression of hmox1. Persistent behavioral deficits, histological injury and altered expression of a subset of olfactory biomarkers were still evident in Cd-exposed coho following a 16-day depuration in clean water. Exposure to 3.7 ppb Cd also resulted in reduced freeze responses and histological changes

Health Behaviors and Chronic Conditions Mediate the Protective Effects of Masculinity for Physical Performance in Older Adults.

Science.gov (United States)

Ahmed, Tamer; Vafaei, Afshin; Auais, Mohammad; Phillips, Susan P; Guralnik, Jack; Zunzunegui, M V

2017-04-01

We estimated the 2-year incidence of poor physical performance according to gender roles and examined mediating pathways related to health behaviors and chronic conditions. Data are from the International Mobility in Aging Study ( n = 1,676). The Bem Sex Role Inventory was used to classify participants into four gender roles as "masculine," "feminine," "androgynous," and "undifferentiated." We found a higher incidence of poor physical performance among participants endorsing the feminine (adjusted incidence rate ratio [IRR] = 2.36, 95% confidence interval (CI) = [1.55, 3.60]) or the undifferentiated role (adjusted IRR = 2.19, 95% CI = [1.45, 3.30]) compared with the androgynous role. Smoking, physical activity, the number of chronic conditions, high body mass index, and depression were mediators of this association but not alcohol consumption. This study provides evidence that gender roles are independently associated with physical performance. Health behaviors and chronic conditions are mediators of the relationship between gender roles and lower extremity physical function.

Educational attainment, time preference, and health-related behaviors: A mediation analysis from the J-SHINE survey.

Science.gov (United States)

Takagi, Daisuke; Kondo, Naoki; Takada, Misato; Hashimoto, Hideki

2016-03-01

Evidence consistently shows that low education is associated with unhealthy behaviors. A recent study in behavioral economics argued that high time preferences - the tendency to prefer immediate gain to later reward - explain the limited self-control of individuals in making preventive health-related choices. The aim of this study was to examine the mediating effect of time preference on the associations between education and smoking, binge drinking and overweight in young and middle-aged adults living in a Japanese metropolitan area, using a quantitatively measured time discount rate. A population-based probabilistic sample of residents of 25-50 years of age living in four municipalities within Japanese metropolitan areas where economic disparity is relatively large was obtained from the Japanese Study on Stratification, Health, Income, and Neighborhood (J-SHINE). Respondents answered the questionnaire items using a computer-aided personal instrument (CAPI). Data from 3457 respondents were used in this study. Time preferences measured as categorical responses were converted into a continuous number of time discount rates by using the maximum likelihood method. Smoking habit, binge drinking, and body mass index were regressed on educational attainment with demographics and other confounders. The mediating effects of the time discount rate were examined with the bootstrapping method. Results showed that the time discount rate did not mediate the association between education and binge drinking and BMI. Even for smoking, the mediating effect of time discount rate was quite limited, indicating that the proportion of total effect of education mediated was only 4.3% for men and 3.0% for women. The results suggest that modifying time preferences through educational intervention has only limited efficacy in closing disparities in health-related behaviors, and that other mediators fostered by schooling, such as knowledge/skills, group norms and supportive peers

Interventional Effects for Mediation Analysis with Multiple Mediators.

Science.gov (United States)

Vansteelandt, Stijn; Daniel, Rhian M

2017-03-01

The mediation formula for the identification of natural (in)direct effects has facilitated mediation analyses that better respect the nature of the data, with greater consideration of the need for confounding control. The default assumptions on which it relies are strong, however. In particular, they are known to be violated when confounders of the mediator-outcome association are affected by the exposure. This complicates extensions of counterfactual-based mediation analysis to settings that involve repeatedly measured mediators, or multiple correlated mediators. VanderWeele, Vansteelandt, and Robins introduced so-called interventional (in)direct effects. These can be identified under much weaker conditions than natural (in)direct effects, but have the drawback of not adding up to the total effect. In this article, we adapt their proposal to achieve an exact decomposition of the total effect, and extend it to the multiple mediator setting. Interestingly, the proposed effects capture the path-specific effects of an exposure on an outcome that are mediated by distinct mediators, even when-as often-the structural dependence between the multiple mediators is unknown, for instance, when the direction of the causal effects between the mediators is unknown, or there may be unmeasured common causes of the mediators.

Threat Reappraisal as a Mediator of Symptom Change in Cognitive-Behavioral Treatment of Anxiety Disorders: A Systematic Review

NARCIS (Netherlands)

Smits, J.A.J.; Julian, K.; Rosenfield, D.; Powers, M.B.

2012-01-01

Objective: Identifying mediators of therapeutic change is important to the development of interventions and augmentation strategies. Threat reappraisal is considered a key mediator underlying the effects of cognitive-behavioral therapy (CBT) for anxiety disorders. The present study systematically

Moderate-to-vigorous physical activity as a mediator between sedentary behavior and cardiometabolic risk in Spanish healthy adults: a mediation analysis

OpenAIRE

García-Hermoso, Antonio; Martínez-Vizcaíno, Vicente; Sánchez-López, Mairena; Recio-Rodriguez, Jose I.; Gómez-Marcos, Manuel A.; García-Ortiz, Luis

2015-01-01

Background Public health strategies for cardiovascular prevention highlight the importance of physical activity, but do not consider the additional potentially harmful effects of sedentary behavior. This study was conducted between 2010 and 2012 and analyzed between 2013 and 2014. The aim of the study was to analyze the relationship between sedentary behavior and cardiometabolic risk factors in the Spanish adult population and to examine whether this relationship is mediated by moderate-to-vi...

Identification as a Mediator of Celebrity Effects.

Science.gov (United States)

Basil, Michael D.

1996-01-01

This study examined personal concern, perceived risk, and sexual behavior of 147 college students a year after Magic Johnson announced he tested positive for HIV (Human Immunodeficiency Virus). It found that identification mediates message effects, suggesting that a spokesperson with whom an audience can identify insures the greatest likelihood of…

Parental behavioral and psychological control and problematic internet use among Chinese adolescents: the mediating role of self-control.

Science.gov (United States)

Li, Xian; Li, Dongping; Newman, Joan

2013-06-01

Previous research has reported contradictory effects of parental control on adolescents' problematic Internet use (PIU). To reconcile the discrepant findings, the current study examined the differential effects of parental behavioral control (solicitation and restriction) and psychological control (guilt induction, love withdrawal, and authority assertion) on adolescents' PIU. The mediating effect of self-control on the relationships between parental control and PIU was also examined. A total of 694 Chinese adolescents (M=13.67 years) completed questionnaire measures of parental behavioral control, psychological control, self-control, and PIU. After adjusting for age, gender, and family financial status, it was found that parental restriction (a form of behavioral control) was negatively associated with PIU, whereas love withdrawal (a form of psychological control) was positively associated with PIU. Increased self-control was associated with decreased PIU, and changes in self-control at least partially mediated the differential effects of parental behavioral and psychological control on PIU. Theoretical and practical implications of these findings are discussed.

Relationship of submissive behavior and cyberbullying/cybervictimization: The mediation role of gender

OpenAIRE

Adem Peker; Yüksel Eroğlu; Nihan Çitemel

2012-01-01

The purpose of this study is to investigate the mediating role of gender in relationship between submissive behavior and cyber bullying/cyber victimization. The sample included 193 female and 137 male. Data were obtained using Submissive Behavior Scale and Revized Cyberbullying Inventory and analyzed by SPSS 11.5. Hierarchical regression was used to explore the mediating role of gender in relationship between submissive behavior and cyber bullying/cyber victimization. According to result...

Glutamate Receptors within the Mesolimbic Dopamine System Mediate Alcohol Relapse Behavior.

Science.gov (United States)

Eisenhardt, Manuela; Leixner, Sarah; Luján, Rafael; Spanagel, Rainer; Bilbao, Ainhoa

2015-11-25

Glutamatergic input within the mesolimbic dopamine (DA) pathway plays a critical role in the development of addictive behavior. Although this is well established for some drugs of abuse, it is not known whether glutamate receptors within the mesolimbic system are involved in mediating the addictive properties of chronic alcohol use. Here we evaluated the contribution of mesolimbic NMDARs and AMPARs in mediating alcohol-seeking responses induced by environmental stimuli and relapse behavior using four inducible mutant mouse lines lacking the glutamate receptor genes Grin1 or Gria1 in either DA transporter (DAT) or D1R-expressing neurons. We first demonstrate the lack of GluN1 or GluA1 in either DAT- or D1R-expressing neurons in our mutant mouse lines by colocalization studies. We then show that GluN1 and GluA1 receptor subunits within these neuronal subpopulations mediate the alcohol deprivation effect, while having no impact on context- plus cue-induced reinstatement of alcohol-seeking behavior. We further validated these results pharmacologically by demonstrating similar reductions in the alcohol deprivation effect after infusion of the NMDAR antagonist memantine into the nucleus accumbens and ventral tegmental area of control mice, and a rescue of the mutant phenotype via pharmacological potentiation of AMPAR activity using aniracetam. In conclusion, dopamine neurons as well as D1R-expressing medium spiny neurons and their glutamatergic inputs via NMDARs and AMPARs act in concert to influence relapse responses. These results provide a neuroanatomical and molecular substrate for relapse behavior and emphasize the importance of glutamatergic drugs in modulating relapse behavior. Here we provide genetic and pharmacological evidence that glutamate receptors within the mesolimbic dopamine system play an essential role in alcohol relapse. Using various inducible and site-specific transgenic mouse models and pharmacological validation experiments, we show that critical

Mediation of Sensation Seeking and Behavioral Inhibition on the Relationship between Heart Rate and Antisocial Behavior: The TRAILS Study

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Sijtsema, Jelle J.; Veenstra, Rene; Lindenberg, Siegwart; van Roon, Arie M.; Verhulst, Frank C.; Ormel, Johan; Riese, Harriette

2010-01-01

Objective: Why is low resting heart rate (HR) associated with antisocial behavior (ASB), i.e., aggression and rule breaking, in adolescence? Theory suggests that personality traits mediate this relationship but differently with age. In the present study this age-effect hypothesis is tested; we expected that the relationship between HR and…

Team innovation climate and knowledge sharing among healthcare managers: mediating effects of altruistic intentions.

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Liu, Feng-Chuan; Cheng, Kai-Lin; Chao, Minston; Tseng, Hsu-Min

2012-01-01

This paper aims to provide empirical evidence concerning the impact of team climate on knowledge sharing behavior and the mediating effects of individuals' altruistic intentions in the context of healthcare settings. Questionnaire data were collected from 212 administrators employed at a medical center in Taiwan. Team climate was assessed by the Team Climate Inventory composed of four factors, participative safety, support for innovation, vision, and task orientation. The proposed hypotheses were tested using structural equation modeling. The influence of the team innovation climate on knowledge sharing behavior was evident. Furthermore, individuals' altruistic intentions played a full mediating role in the relationship between team innovation climate and knowledge sharing behavior. These results contribute to the field of the people-orientated perspective in knowledge management. The full mediating effect of employees' altruistic intentions provides healthcare team managers the direction to accelerate knowledge sharing behavior.

Effects of a combined parent-student alcohol prevention program on intermediate factors and adolescents' drinking behavior: A sequential mediation model.

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Koning, Ina M; Maric, Marija; MacKinnon, David; Vollebergh, Wilma A M

2015-08-01

Previous work revealed that the combined parent-student alcohol prevention program (PAS) effectively postponed alcohol initiation through its hypothesized intermediate factors: increase in strict parental rule setting and adolescents' self-control (Koning, van den Eijnden, Verdurmen, Engels, & Vollebergh, 2011). This study examines whether the parental strictness precedes an increase in adolescents' self-control by testing a sequential mediation model. A cluster randomized trial including 3,245 Dutch early adolescents (M age = 12.68, SD = 0.50) and their parents randomized over 4 conditions: (1) parent intervention, (2) student intervention, (3) combined intervention, and (4) control group. Outcome measure was amount of weekly drinking measured at age 12 to 15; baseline assessment (T0) and 3 follow-up assessments (T1-T3). Main effects of the combined and parent intervention on weekly drinking at T3 were found. The effect of the combined intervention on weekly drinking (T3) was mediated via an increase in strict rule setting (T1) and adolescents' subsequent self-control (T2). In addition, the indirect effect of the combined intervention via rule setting (T1) was significant. No reciprocal sequential mediation (self-control at T1 prior to rules at T2) was found. The current study is 1 of the few studies reporting sequential mediation effects of youth intervention outcomes. It underscores the need of involving parents in youth alcohol prevention programs, and the need to target both parents and adolescents, so that change in parents' behavior enables change in their offspring. (c) 2015 APA, all rights reserved).

Sleep and organizational citizenship behavior: the mediating role of job satisfaction.

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Barnes, Christopher M; Ghumman, Sonia; Scott, Brent A

2013-01-01

We examine sleep as an important factor beyond the work domain that is relevant to organizational citizenship behavior. In a field study of 87 employees from a variety of organizations, an objective measure of sleep quantity predicted organizational citizenship behavior directed toward organizations but not organizational citizenship behavior directed toward individuals. Additionally, job satisfaction mediated this relationship. In a second field study of 85 working college students, we found that natural variation in daily sleep over the course of a work week predicted daily variance in organizational citizenship behavior directed toward both individuals and organizations, and that job satisfaction mediated these relationships. Based on these findings, we discuss theoretical and practical implications of sleep-deprived employees.

Self-efficacy: a mediator of smoking behavior and depression among college students.

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Mee, Susan

2014-01-01

Cigarette smoking is a growing problem among adolescents. This correlational study tested theoretical relationships between the dependent variable (smoking behavior) and the independent variables (depression and smoking resistance self-efficacy) in a convenience sample of 364 college students ages 18 to 21 years recruited from a large urban public college. An a priori mediational model tested the role of smoking resistance self-efficacy as a mediator in the relationship between smoking behavior and depression. Findings showed there was a statistically significant positive relationship between depression and smoking behavior (r = 0.122, p = 0.01). There was a statistically significant negative relationship between smoking resistance self-efficacy and smoking behavior (r = -0.744, p = 0.01). Additionally, smoking resistance self-efficacy was a mediator of the relationship between depression and smoking behavior (beta = -0.757, p = 0.001). This study identifies a need for further theory-driven study of the relation of adolescent depression and smoking behavior. The findings of this study have implications for nursing interventions targeted to both current smokers and smoking initiation prevention programs.

Forgiveness and Suicidal Behavior: Cynicism and Psychache as Serial Mediators.

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Dangel, Trever J; Webb, Jon R; Hirsch, Jameson K

2018-02-17

Research is burgeoning regarding the beneficial association of forgiveness with numerous health-related outcomes; however, its particular relationship to suicidal behavior has received relatively little attention. Both cynicism and psychache, or agonizing psychological pain, have displayed deleterious associations with suicidal behavior, but have rarely been incorporated into more comprehensive models of suicidal behavior. Consistent with the recent development of a theoretical model regarding the forgiveness-suicidal behavior association, the present study utilized an undergraduate sample of college students (N = 312) to test a mediation-based model of the cross-sectional association of forgiveness with suicidal behavior, as serially mediated by cynicism and psychache. Dispositional forgiveness of self and forgiveness of uncontrollable situations were each indirectly associated with less suicidal behavior via less psychache. Also, dispositional forgiveness of others was indirectly associated with less suicidal behavior via less cynicism and less psychache, in a serial fashion. The present results are consistent with the extent literature on the forgiveness-suicidal behavior association, cynicism, and psychache, and pending future studies, may be utilized to inform further treatment efforts for individuals at a high risk of attempting suicide.

Parenting stress and children's problem behavior in China: the mediating role of parental psychological aggression.

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Liu, Li; Wang, Meifang

2015-02-01

This study examined the mediating effect of parents' psychological aggression in the relationship between parenting stress and children's internalizing (anxiety/depression, withdrawal) and externalizing (aggression, delinquency) problem behaviors 1 year later. Using a sample of 311 intact 2-parent Chinese families with preschoolers, findings revealed that maternal parenting stress had direct effects on children's internalizing and externalizing problem behavior and indirect effects through maternal psychological aggression. However, neither direct nor indirect effects of fathers' parenting stress on children's internalizing and externalizing problem behavior were found. The findings highlight the importance of simultaneously studying the effects of both mothers' and fathers' parenting on their children within a family systems framework. PsycINFO Database Record (c) 2015 APA, all rights reserved.

Afraid to help: social anxiety partially mediates the association between 5-HTTLPR triallelic genotype and prosocial behavior.

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Stoltenberg, Scott F; Christ, Christa C; Carlo, Gustavo

2013-01-01

There is growing evidence that the serotonin system influences prosocial behavior. We examined whether anxiety mediated the association between variation in the serotonin transporter gene regulatory region (5-HTTLPR) and prosocial behavior. We collected self-reported tendencies to avoid certain situations and history of helping others using standard instruments and buccal cells for standard 5-HTTLPR genotyping from 398 undergraduate students. Triallelic 5-HTTLPR genotype was significantly associated with prosocial behavior and the effect was partially mediated by social anxiety, such that those carrying the S' allele reported higher levels of social avoidance and lower rates of helping others. These results are consistent with accounts of the role of serotonin on anxiety and prosocial behavior and suggest that targeted efforts to reduce social anxiety in S' allele carriers may enhance prosocial behavior.

Parenting stress as a mediator of parents' negative mood state and behavior problems in children with newly diagnosed cancer.

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van der Geest, Ivana M; van den Heuvel-Eibrink, Marry M; Passchier, Jan; van den Hoed-Heerschop, Corry; Pieters, Rob; Darlington, Anne-Sophie E

2014-07-01

The aim was to investigate the influence of parents' negative mood state and parenting stress on behavior in children with newly diagnosed cancer. A total of 123 parents (n=58 fathers, n=65 mothers) of 67 children with newly diagnosed cancer completed three questionnaires separately at the same time measuring parents' negative mood state, parenting stress, and child behavior problems. Parents' negative mood state was weakly correlated to more child behavior problems (r=0.31, pparenting stress were strongly correlated to more child behavior problems (r=0.61, pparents' negative mood state and child behavior problems (c=0.29, p=0.02 (fathers); c=0.25, p=0.04 (mothers)) became non-significant after mediating for parenting stress (c'=0.003, p=0.98 (fathers); c'=0.10, p=0.42 (mothers)). The indirect effect of parents' negative mood state and child behavior problems was only significant for fathers (95% CI [0.12; 0.51]), indicating that parenting stress mediates the effect between fathers' negative mood state and child behavior problems. This is the first study to demonstrate the mediational role of parenting stress in fathers of a child with newly diagnosed cancer. Copyright © 2014 John Wiley & Sons, Ltd.

Mother-adolescent conflict as a mediator between adolescent problem behaviors and maternal psychological control.

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Steeger, Christine M; Gondoli, Dawn M

2013-04-01

This study examined mother-adolescent conflict as a mediator of longitudinal reciprocal relations between adolescent aggression and depressive symptoms and maternal psychological control. Motivated by family systems theory and the transactions that occur between individual and dyadic levels of the family system, we examined the connections among these variables during a developmental period when children and parents experience significant psychosocial changes. Three years of self-report data were collected from 168 mother-adolescent dyads, beginning when the adolescents (55.4% girls) were in 6th grade. Models were tested using longitudinal path analysis. Results indicated that the connection between adolescent aggression (and depressive symptoms) and maternal psychological control was best characterized as adolescent-driven, indirect, and mediated by mother-adolescent conflict; there were no indications of parent-driven indirect effects. That is, prior adolescent aggression and depressive symptoms were associated with increased conflict. In turn, conflict was associated with increased psychological control. Within our mediation models, reciprocal direct effects between both problem behaviors and conflict and between conflict and psychological control were also found. Additionally, exploratory analyses regarding the role of adolescent gender as a moderator of variable relations were conducted. These analyses revealed no gender-related patterns of moderation, whether moderated mediation or specific path tests for moderation were considered. This study corroborates prior research finding support for child effects on parenting behaviors during early adolescence. (PsycINFO Database Record (c) 2013 APA, all rights reserved).

Parental mediation of media messages does matter: more interaction about objectionable content is associated with emerging adults' sexual attitudes and behaviors.

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Radanielina-Hita, Marie Louise

2015-01-01

An online survey of undergraduates explored the effects of recalled parent-child interaction regarding media on their critical thinking skills, beliefs about alcohol and sex, and current reports of attitudes and risky sexual behaviors. Students from a northwestern university completed the questionnaire three times during the fall of 2011. Effective parental mediation was found to be a protective factor against the negative effects of objectionable content on sexual attitudes and behaviors through its effect on critical thinking toward media content and expectancies. Participants whose parents critiqued media portrayals reported a higher level of critical thinking. More critical orientation toward media decreased the effects of objectionable content on expectancies and sexual behaviors. On the other hand, participants whose parents endorsed media portrayals reported lower levels of critical thinking. Developing critical thinking toward media is an effective approach to helping young people make good decisions about their health. Although viewers' understanding of media content may be biased by the emotional aspect of decision making, critical thinking was shown to decrease the appeal of mediated messages on behaviors. Parents play an important role in developing children's critical thinking skills, and those who mediate their children's media use can establish behaviors that will prove beneficial to their children later in life.

Mediating and Marketing Factors Influence the Prescription Behavior of Physicians: An Empirical Investigation

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Rizwan Raheem Ahmed

2016-02-01

Full Text Available The authors present general review of the literature and the results of an empirical research on the subject. A cross-sectional questionnaire-based survey was conducted, being answered by 350 respondents: mix of graduate and post graduate doctors of private and public hospitals of Karachi City, and pharmaceutical personnel (mix of sales and marketing of national and multinational pharmaceutical companies operating in Pakistan. To test hypothesis, structural equation modelling (SEM was employed using AMOS 7 software package. As data are normally distributed, maximum likelihood method of estimation was used. Factorial ANOVA also enables us to examine the interaction effect between the factors. The results from factorial ANOVA test all the hypotheses of model, and results were declared significant at p <0.05. Findings are interesting as they establish association between variables (scientific literatures, promotional material, regular follow up, CMEs & conferences, personalized activities and prescription behavior of doctors mediated by strong phenomenon of medical representative PR and brand image of a company/product in changing the prescription behavior of doctors. Based on the results of this study, the pharmaceutical companies can device better marketing strategies keeping in view of these mediating effects. The article presents only two mediating and five marketing factors, whereas, more marketing and mediating variables can be added and tested, so, in future this gape can be overcome by other researchers. Moreover, a larger sample size could be applied and the scope of study can be enhanced.

Youth internalizing symptoms, sleep-related problems, and disordered eating attitudes and behaviors: A moderated mediation analysis.

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Chardon, Marie L; Janicke, David M; Carmody, Julia K; Dumont-Driscoll, Marilyn C

2016-04-01

Internalizing symptoms increase the risk for disordered eating; however, the mechanism through which this relationship occurs remains unclear. Sleep-related problems may be a potential link as they are associated with both emotional functioning and disordered eating. The present study aims to evaluate the mediating roles of two sleep-related problems (sleep disturbance and daytime sleepiness) in the relationship between youth internalizing symptoms and disordered eating, and to explore if age moderates these relations. Participants were 225 youth (8-17years) attending a primary care appointment. Youth and legal guardians completed questionnaires about youth disordered eating attitudes and behaviors, internalizing symptoms, sleep disturbance, and daytime sleepiness. Mediation and moderated mediation analyses were utilized. The mediation model revealed both youth sleep disturbance and daytime sleepiness independently mediated the association between internalizing symptoms and disordered eating attitudes and behaviors, and explained 18% of the variance in disordered eating. The moderated mediation model including youth age accounted for 21% of the variance in disordered eating; youth age significantly interacted with sleep disturbance, but not with daytime sleepiness, to predict disordered eating. Sleep disturbance only mediated the relationship between internalizing symptoms and disordered eating in youth 12years old and younger, while daytime sleepiness was a significant mediator regardless of age. As sleep-related problems are frequently improved with the adoption of health behaviors conducive to good sleep, these results may suggest a relatively modifiable and cost-effective target to reduce youth risk for disordered eating. Copyright © 2016 Elsevier Ltd. All rights reserved.

Coping Styles Mediate the Relationship Between Self-esteem, Health Locus of Control, and Health-Promoting Behavior in Chinese Patients With Coronary Heart Disease.

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Zou, Huijing; Tian, Qian; Chen, Yuxia; Cheng, Cheng; Fan, Xiuzhen

Health-promoting behavior plays an important role in reducing the burden of coronary heart disease. Self-esteem and health locus of control may contribute to health-promoting behavior, and coping styles may mediate these associations. The aims of our study were to examine whether self-esteem and health locus of control are associated with health-promoting behavior and examine the possible mediating effect of coping styles in patients with coronary heart disease. Health-promoting behavior, self-esteem, health locus of control, and coping styles were assessed in 272 hospitalized patients (60 ± 12 years, 61% male) with coronary heart disease. Hierarchical regression analysis was conducted to analyze the relationships between health-promoting behavior and other variables. Mediation effect was examined according to the methods of Baron and Kenny. The mean score for health-promoting behavior was 2.57 ± 0.51; 38.2% of patients (n = 104) scored lower than 2.5. Self-esteem (β = .139, P locus of control and health-promoting behavior. Confrontation plays a mediating role in the association among self-esteem, internal health locus of control, and health-promoting behavior. Strategies should be undertaken to encourage the use of confrontation coping style, which will facilitate health-promoting behavior.

Why and How to Promote Adolescents' Prosocial Behaviors: Direct, Mediated and Moderated Effects of the CEPIDEA School-Based Program.

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Caprara, Gian Vittorio; Luengo Kanacri, Bernadette Paula; Zuffianò, Antonio; Gerbino, Maria; Pastorelli, Concetta

2015-12-01

Prosocial behaviors are considered integral to intervention goals that seek to promote successful youth development. This study examines the effect of a school-based intervention program entirely designed to promote prosocial behaviors called Promoting Prosocial and Emotional Skills to Counteract Externalizing Problems in Adolescence (Italian acronym CEPIDEA). The CEPIDEA curriculum was incorporated into routine educational practices and included five major components that reflect the personal determinants of prosocial behavior during adolescence. The present study assessed 151 students (48.7% female; M(age) = 12.4) of the intervention school and 140 students (51.2% female; M(age) = 13.0) of the control school at three points. A multi-group latent curve analysis revealed that the intervention group, compared with the control group, showed an increase in prosocial behavior, interpersonal self-efficacy beliefs, and agreeableness along with a decrease in physical aggression above and beyond the normative developmental trend of the these variables. Participants of the intervention also obtained higher grades than the control group at the end of middle school. Moderation effects for prosocial behavior and agreeableness evidenced that those who benefited most from the intervention were those adolescents with lower normative development of prosocial behavior, low initial level of agreeableness, and high initial level of physical aggression. The results also showed that the increase of prosocial behaviors mediated the decline of verbal aggression in adolescents who had attended the intervention. These findings suggest that interventions aimed at promoting prosocial behaviors while having the potential to support positive outcomes may also counteract or redirect negative trajectories of functioning.

Constructing the Suicide Risk Index (SRI): does it work in predicting suicidal behavior in young adults mediated by proximal factors?

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O'Connor, Maebh; Dooley, Barbara; Fitzgerald, Amanda

2015-01-01

Suicide is a key concern among young adults. The aim of the study was to (1) construct a suicide risk index (SRI) based on demographic, situational, and behavioral factors known to be linked to suicidal behavior and (2) investigate whether the association between the SRI and suicidal behavior was mediated by proximal processes (personal factors, coping strategies, and emotional states). Participants consisted of 7,558 individuals aged 17-25 years (M = 20.35, SD = 1.91). Nearly 22% (n = 1,542) reported self-harm and 7% (n = 499) had attempted suicide. Mediation analysis revealed both a direct effect (ß = .299, 95% CI = [.281, .317], p suicidal behavior. The strongest mediators were levels of self-esteem, depression, and avoidant coping. Interventions to increase self-esteem, reduce depression, and encourage adaptive coping strategies may prevent suicidal behavior in young people.

Sex Disparities in Adverse Childhood Experiences and HIV/STIs: Mediation of Psychopathology and Sexual Behaviors.

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Brown, Monique J; Masho, Saba W; Perera, Robert A; Mezuk, Briana; Pugsley, River A; Cohen, Steven A

2017-06-01

HIV and other sexually transmitted infections (STIs) are important public health challenges in the US. Adverse childhood experiences (ACEs), including abuse (emotional, physical or sexual), witnessing violence among household members, may have an effect on sexual behaviors, which increase the risk of HIV/STIs. The aim of this study was to examine the sex differences in the role of posttraumatic stress disorder (PTSD), major depression (MD), substance use disorders (SUDs), early sexual debut, and intimate partner violence (IPV) perpetration as mediators in the association between ACEs and HIV/STIs. Data were obtained from Wave 2 (2004-2005) of the National Epidemiologic Survey on Alcohol and Related Conditions. Structural equation modeling was used to determine the role of PTSD, MD, SUDs, early sexual debut, and IPV perpetration as mediators in the relationships between ACEs and HIV/STIs. Differences and similarities existed in the mediational roles of psychopathology and sexual behaviors. For example, among men, MD fully mediated physical/psychological abuse (β = 0.0002; p = 0.012) and sexual abuse (β = 0.0002; p = 0.006), and HIV/STIs while among women, MD fully mediated physical/psychological abuse (β = 0.0005; p abuse (β = -0.0005; p = 0.012) and HIV/STIs while among women, IPV perpetration was not a statistically significant mediator. HIV/STI prevention and intervention programs should use a life course approach by addressing adverse childhood events among men and women and consider the sex differences in the roles of psychopathology and sexual behaviors.

Direct and Mediated Relationships Between Participation in a Telephonic Health Coaching Program and Health Behavior, Life Satisfaction, and Optimism.

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Sears, Lindsay E; Coberley, Carter R; Pope, James E

2016-07-01

The aim of this study was to examine the direct and mediated effects of a telephonic health coaching program on changes to healthy behaviors, life satisfaction, and optimism. This longitudinal correlational study of 4881 individuals investigated simple and mediated relationships between participation in a telephonic health risk coaching program and outcomes from three annual Well-being Assessments. Program participation was directly related to improvements in healthy behaviors, life satisfaction and optimism, and indirect effects of coaching on these variables concurrently and over a one-year time lag were also supported. Given previous research that improvements to life satisfaction, optimism, and health behaviors are valuable for individuals, employers, and communities, a clearer understanding of intervention approaches that may impact these outcomes simultaneously can drive greater program effectiveness and value on investment.

The mediational role of parenting on the longitudinal relation between child personality and externalizing behavior

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Prinzie, P.; van der Sluis, Cathy .M.; de Haan, Amaranta D.; Dekovic, Maja

2010-01-01

ABSTRACT Building on prior cross-sectional work, this longitudinal study evaluated the proposition that maternal and paternal overreactive and authoritative parenting mediates the effect of child personality characteristics on externalizing behavior. Data from the Flemish Study on Parenting,

The mediating effects of values on the relationship between outdoor recreation participation and pro-environment behavior

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Alan D. Bright; Susan C. Barro

2000-01-01

Environmental awareness has increased in the past two decades. One factor believed to influence this awareness is outdoor recreation participation. We examined whether participation in outdoor recreation predicts pro-environmental behavior and whether environmental values mediate the relationship. A survey of residents of Washington state measured (a) participation in...

The traffic climate in China: The mediating effect of traffic safety climate between personality and dangerous driving behavior.

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Zhang, Qian; Ge, Yan; Qu, Weina; Zhang, Kan; Sun, Xianghong

2018-04-01

Traffic safety climate is defined as road users' attitudes and perceptions of traffic in a specific context at a given point in time. The current study aimed to validate the Chinese version of the Traffic Climate Scale (TCS) and to explore its relation to drivers' personality and dangerous driving behavior. A sample of 413 drivers completed the Big Five Inventory (BFI), the Chinese version of the TCS, the Dula Dangerous Driving Index (DDDI) and a demographic questionnaire. Exploratory factor analysis and confirmatory factor analysis were performed to confirm a three-factor (external affective demands, internal requirements and functionality) solution of the TCS. The reliability and validity of the Chinese version of TCS were verified. More importantly, the results showed that the effect of personality on dangerous driving behavior was mediated by traffic climate. Specifically, the functionality of the TCS mediated the effect of neuroticism on negative cognitive/emotional driving and drunk driving, while openness had an indirect impact on aggressive driving, risky driving and drunk driving based on the internal requirements of the TCS. Additionally, agreeableness had a negative direct impact on four factors of the DDDI, while neuroticism had a positive direct impact on negative cognitive/emotional driving, drunk driving and risky driving. In conclusion, the Chinese version of the TCS will be useful to evaluate drivers' attitudes towards and perceptions of the requirements of traffic environment in which they participate and will also be valuable for comparing traffic cultures and environments in different countries. Copyright © 2018 Elsevier Ltd. All rights reserved.

Wuling powder prevents the depression-like behavior in learned helplessness mice model through improving the TSPO mediated-mitophagy.

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Li, Dongmei; Zheng, Ji; Wang, Mingyang; Feng, Lu; Liu, Yanyong; Yang, Nan; Zuo, Pingping

2016-06-20

Wuling powder (trade name: Wuling capsule), a traditional Chinese medicine (TCM), was extracted from mycelia of precious Xylaria Nigripes (Kl.) Sacc by modern fermentation technology, and has been claimed to be fully potent in improving the signs of insomnia and cognitive deficits. Moreover, Wuling capsule was effective in treating post-stroke and orther co-cormbid depression both in clinical and in basic research. In order to clarify the molecular mechanisms of the antidepressant effect of Wuling powder, we established learned helplessness (LH) depression animal model and focused on 18kDa translocator protein (TSPO) mediated-mitophagy pathway. Mice were exposed to the inescapable e-shock (IS) once a day for three consecutive days to establish the LH model. Then mice were orally administered Wuling powder for 2 weeks. For the behavioral assessment, Shuttle box test, novelty suppressed feeding test (NSF) and forced swimming test (FST) were performed. Following the behavioral assessment, we assessed the protein expression level that were related to TSPO-mediated mitophagy signaling pathway by Western blotting analysis. Finally, immunohistochemistry method was used to assess the neuroprotective effects of Wuling powder. Compared with mice that were subjected to inescapable e-shock, Wuling powder exhibited antidepressant effect in the multiple behavioral tests. In addition, Wuling powder altered the expression level of multiple proteins related to TSPO-mediated mitophagy signaling pathway. Our results suggested that Wuling powder exhibited an obvious antidepressant effect, which could be due to the improvement of TSPO-mediated mitophagy signaling pathway. Copyright © 2016. Published by Elsevier Ireland Ltd.

Mentalization mediates the relation between early traumatic experiences and aggressive behavior in adolescence

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Taubner Svenja

2013-01-01

Full Text Available The aim of the study was to examine whether mentalization serves as a protective factor against aggressive behavior in adolescence in the context of early traumatization. We present data from a non-clinical sample of adolescents from Germany (n=97 and calculate a mediation model to test the link between early traumatic experiences and aggressive behavior with mentalizing skills as a mediator. Mentalization was assessed with the Reflective Functioning Scale on the Adult-Attachment-Interview and aggressive behavior was measured with the Reactive-Proactive-Aggression-Questionnaire. Traumatic experience was operationalized as physical and/or sexual abuse as reported in the Childhood Experience of Care and Abuse Questionnaire. Results show a complete mediation for Reflective Functioning on the relationship between early abuse and aggressive behavior. Thus, the findings of the study support an understanding of mentalizing as a protective factor for the relationship between early abusive experience and the development of aggressive behavior. Clinical implications are discussed.

Effect of grazing-mediated dimethyl sulfide (DMS) production on the swimming behavior of the copepod Calanus helgolandicus.

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Breckels, Mark N; Bode, Nikolai W F; Codling, Edward A; Steinke, Michael

2013-07-15

Chemical interactions play a fundamental role in the ecology of marine foodwebs. Dimethyl sulfide (DMS) is a ubiquitous marine trace gas that acts as a bioactive compound by eliciting foraging behavior in a range of marine taxa including the copepod Temora longicornis. Production of DMS can rapidly increase following microzooplankton grazing on phytoplankton. Here, we investigated whether grazing-induced DMS elicits an increase in foraging behavior in the copepod Calanus helgolandicus. We developed a semi-automated method to quantify the effect of grazing-mediated DMS on the proportion of the time budget tethered females allocate towards slow swimming, typically associated with feeding. The pooled data showed no differences in the proportion of the 25 min time budget allocated towards slow swimming between high (23.6 ± 9.74%) and low (29.1 ± 18.33%) DMS treatments. However, there was a high degree of variability between behavioral responses of individual copepods. We discuss the need for more detailed species-specific studies of individual level responses of copepods to chemical signals at different spatial scales to improve our understanding of chemical interactions between copepods and their prey.

Maternal depressive symptomatology and parenting behavior: exploration of possible mediators.

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Gerdes, Alyson C; Hoza, Betsy; Arnold, L Eugene; Pelham, William E; Swanson, James M; Wigal, Timothy; Jensen, Peter S

2007-10-01

Possible mediators of the relation between maternal depressive symptomatology and parenting behavior were examined for 96 children with ADHD and their mothers drawn from the Multimodal Treatment Study of Children with ADHD (MTA) as part of an add-on investigation conducted by two of the six MTA sites. General cognitions (i.e., maternal locus of control and self-esteem) and parenting-specific factors (i.e., maternal parenting efficacy and parenting stress) were examined as possible mediators. Findings provide initial support that maternal parenting stress, as well as maternal locus of control and self-esteem mediate the relation between maternal depressive symptomatology and parenting behavior. This provides support for the argument that some families of children with ADHD may benefit from an expanded version of parent management training that includes sessions directly targeting affective and cognitive factors in parents, similar to treatment programs used to treat childhood conduct problems.

Sex-specific mediation effect of the right fusiform face area volume on the association between variants in repeat length of AVPR1A RS3 and altruistic behavior in healthy adults.

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Wang, Junping; Qin, Wen; Liu, Feng; Liu, Bing; Zhou, Yuan; Jiang, Tianzi; Yu, Chunshui

2016-07-01

Microsatellite variants in the arginine vasopressin receptor 1A gene (AVPR1A) RS3 have been associated with normal social behaviors variation and autism spectrum disorders (ASDs) in a sex-specific manner. However, neural mechanisms underlying these associations remain largely unknown. We hypothesized that AVPR1A RS3 variants affect altruistic behavior by modulating the gray matter volume (GMV) of specific brain regions in a sex-specific manner. We investigated 278 young healthy adults using the Dictator Game to assess altruistic behavior. All subjects were genotyped and main effect of AVPR1A RS3 repeat polymorphisms and interaction of genotype-by-sex on the GMV were assessed in a voxel-wise manner. We observed that male subjects with relatively short repeats allocated less money to others and exhibited a significantly smaller GMV in the right fusiform face area (FFA) compared with male long homozygotes. In male subjects, the GMV of the right FFA exhibited a significant positive correlation with altruistic behavior. A mixed mediation and moderation analysis further revealed both a significant mediation effect of the GMV of the right FFA on the association between AVPR1A RS3 repeat polymorphisms and allocation sums and a significant moderation effect of sex (only in males) on the mediation effect. Post hoc analysis showed that the GMV of the right FFA was significantly smaller in male subjects carrying allele 426 than in non-426 carriers. These results suggest that the GMV of the right FFA may be a potential mediator whereby the genetic variants in AVPR1A RS3 affect altruistic behavior in healthy male subjects. Hum Brain Mapp 37:2700-2709, 2016. © 2016 Wiley Periodicals, Inc. © 2016 Wiley Periodicals, Inc.

Maternal Emotion Regulation and Adolescent Behaviors: The Mediating Role of Family Functioning and Parenting.

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Crandall, AliceAnn; Ghazarian, Sharon R; Day, Randal D; Riley, Anne W

2016-11-01

Prior research links poor maternal emotion regulation to maladaptive parenting and child behaviors, but little research is available on these relationships during the adolescent period. We use structural equation modeling to assess the influence of poor maternal emotion regulation, measured as emotional reactivity and distancing, on adolescent behaviors (measured as aggression and prosocial behaviors) among 478 adolescents (53 % female; baseline age 10-13 years) and their mothers over a 5 year period. We also tested the possible mediating roles of family functioning and parenting behaviors between maternal emotion regulation and adolescent behaviors. Results indicated that higher baseline maternal emotional distancing and reactivity were not directly predictive of adolescents' behaviors, but they were indirectly related through family functioning and parenting. Specifically, indulgent parenting mediated the relationship between maternal emotional reactivity and adolescent aggression. Maternal-reported family functioning significantly mediated the relationship between maternal emotional distancing and adolescent aggression. Family functioning also mediated the relationship between emotional distancing and regulation parenting. The results imply that poor maternal emotion regulation during their child's early adolescence leads to more maladaptive parenting and problematic behaviors during the later adolescent period. However, healthy family processes may ameliorate the negative impact of low maternal emotion regulation on parenting and adolescent behavioral outcomes. The implications for future research and interventions to improve parenting and adolescent outcomes are discussed.

Posttraumatic stress and worry as mediators and moderators between political stressors and emotional and behavioral disorders in Palestinian children.

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Khamis, Vivian

2012-01-01

This study was designed to assess whether the symptoms of posttraumatic stress mediate or moderate the relationship between political stressors and emotional and behavioral disorders in Palestinian children. It was hypothesized that (a) posttraumatic stress and worry mediate the effect of political stressors on behavioral and emotional disorders and (b) the relationship between political stressors and behavioral and emotional disorders should be attenuated for children with low levels of worry and posttraumatic stress and strengthened for children with high levels of worry and posttraumatic stress. The total sample was 1267 school age children of both sexes with a mean age of 11.97 years. Interviews were conducted with children at school. As hypothesized, the results indicated that posttraumatic stress and worry mediated and moderated the relationship between political stressors and emotional and behavioral disorders in children. Cognitive-behavioral therapy may be used to reduce the incidence of posttraumatic stress and decrease self-reported worry, somatic symptoms, general anxiety, and depression among children exposed to political trauma. Cognitive-behavioral treatment that exclusively targets excessive worry can lead to clinical change in the other interacting subsystems at the cognitive, physiological, affective and behavioral levels.

Hostility and hearing protection behavior: the mediating role of personal beliefs and low frustration tolerance.

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Rabinowitz, S; Melamed, S; Feiner, M; Weisberg, E; Ribak, J

1996-10-01

The authors examined whether hostility would negatively be associated with occupational health behavior, namely, the use of hearing protection devices (HPDs). Also examined as possible mediators were the protection motivation theory (PMT) components and low frustration tolerance (LFT). Participants were 226 male industrial workers, all exposed to potentially hearing-damaging noise. Hostility was negatively related to HPD use. It moderately correlated with the PMT components: negatively with perceived susceptibility, severity, effectiveness, and self-efficacy and positively with perceived barriers. Hostility correlated highly with LFT. Regression analyses confirmed the mediating role of perceived barriers, low self-efficacy, and LFT in the negative relationship between hostility and the use of HPDs. Thus, intrapsychic characteristics of hostile people may be significant for hearing protection behavior.

Bayesian dynamic mediation analysis.

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Huang, Jing; Yuan, Ying

2017-12-01

Most existing methods for mediation analysis assume that mediation is a stationary, time-invariant process, which overlooks the inherently dynamic nature of many human psychological processes and behavioral activities. In this article, we consider mediation as a dynamic process that continuously changes over time. We propose Bayesian multilevel time-varying coefficient models to describe and estimate such dynamic mediation effects. By taking the nonparametric penalized spline approach, the proposed method is flexible and able to accommodate any shape of the relationship between time and mediation effects. Simulation studies show that the proposed method works well and faithfully reflects the true nature of the mediation process. By modeling mediation effect nonparametrically as a continuous function of time, our method provides a valuable tool to help researchers obtain a more complete understanding of the dynamic nature of the mediation process underlying psychological and behavioral phenomena. We also briefly discuss an alternative approach of using dynamic autoregressive mediation model to estimate the dynamic mediation effect. The computer code is provided to implement the proposed Bayesian dynamic mediation analysis. (PsycINFO Database Record (c) 2017 APA, all rights reserved).

Health literacy mediates the relationship between educational attainment and health behavior

DEFF Research Database (Denmark)

Friis, Karina; Lasgaard, Mathias; Rowlands, Gill

2016-01-01

behavior (smoking, physical inactivity, poor diet) and obesity. The study included respondents ages 25 years or older drawn from a large population-based survey conducted in 2013 (N = 29,473). Two scales from the Health Literacy Questionnaire were used: (a) Understanding health information well enough...... to know what to do and (b) Ability to actively engage with health care providers. Multiple mediation analyses were conducted using the Karlson-Holm-Breen method. The study showed that health literacy in general and the ability to understand health information in particular mediated the relationship......Individuals with a lower education level frequently have unhealthier behaviors than individuals with a higher education level, but the pathway is not fully understood. The aim of this study was to investigate whether health literacy mediates the association between educational attainment and health...

Peripheral and central mediators of lipopolysaccharide induced suppression of defensive rage behavior in the cat.

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Bhatt, S; Bhatt, R S; Zalcman, S S; Siegel, A

2009-11-10

Based upon recent findings in our laboratory that cytokines microinjected into the medial hypothalamus or periaqueductal gray (PAG) powerfully modulate defensive rage behavior in cat, the present study determined the effects of peripherally released cytokines following lipopolysaccharide (LPS) challenge upon defensive rage. The study involved initial identification of the effects of peripheral administration of LPS upon defensive rage by electrical stimulation from PAG and subsequent determination of the peripheral and central mechanisms governing this process. The results revealed significant elevation in response latencies for defensive rage from 60 to 300 min, post LPS injection, with no detectable signs of sickness behavior present at 60 min. In contrast, head turning behavior elicited by stimulation of adjoining midbrain sites was not affected by LPS administration, suggesting a specificity of the effects of LPS upon defensive rage. Direct administration of LPS into the medial hypothalamus had no effect on defensive rage, suggesting that the effects of LPS were mediated by peripheral cytokines rather than by any direct actions upon hypothalamic neurons. Complete blockade of the suppressive effects of LPS by peripheral pretreatment with an Anti-tumor necrosis factor-alpha (TNFalpha) antibody but not with an anti- interleukin-1 (IL-1) antibody demonstrated that the effects of LPS were mediated through TNF-alpha rather than through an IL-1 mechanism. A determination of the central mechanisms governing LPS suppression revealed that pretreatment of the medial hypothalamus with PGE(2) or 5-HT(1A) receptor antagonists each completely blocked the suppressive effects of LPS, while microinjections of a TNF-alpha antibody into the medial hypothalamus were ineffective. Microinjections of -Iodo-N-[2-[4-(methoxyphenyl)-1-piperazinyl]ethyl]-N-(2-pyridinyl) benzamide monohydrochloride (p-MPPI) into lateral hypothalamus (to test for anatomical specificity) had no effect upon

Principal Empowering Leadership and Teacher Innovative Behavior: A Moderated Mediation Model

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Gkorezis, Panagiotis

2016-01-01

Purpose: The purpose of this paper is to contribute to extant literature by linking principal empowering leadership to teachers' innovative work behavior. By doing so, the author attempts to provide a more nuanced understanding of this relationship by examining a moderated mediation model which encompasses exploration as a mediator and role…

Do coping skills mediate the relationship between cognitive-behavioral therapy and reductions in gambling in pathological gamblers?

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Petry, Nancy M; Litt, Mark D; Kadden, Ronald; Ledgerwood, David M

2007-08-01

Cognitive-behavioral therapy (CBT) is useful for treating substance abusers, and recent data suggest it is also efficacious for pathological gamblers. CBT is purported to exert its beneficial effects by altering coping skills, but data supporting coping changes as the mechanism of action are mixed. This study examined whether coping skills acquisition mediated the effects of CBT on decreasing gambling in pathological gamblers. Participants were assigned randomly to CBT plus referral to Gamblers Anonymous (GA) or to GA referral alone. Setting Out-patient clinic. A total of 127 pathological gamblers. Participants completed the Coping Strategies Scale (CSS) before treatment and 2 months later; indices of gambling behavior and problems were administered pretreatment and at months 2 and 12. Overall, CSS scores increased for participants in both conditions, but those receiving CBT evidenced larger increases than those in the GA condition (P < 0.05), and they also reduced gambling more substantially between pretreatment and month 2. Changes in CSS scores mediated the relationship between treatment assignment and gambling outcomes from pretreatment to month 2, but little evidence of mediation occurred for the long-term follow-ups. CBT's beneficial effects in decreasing gambling may be related partly to changes in coping responses, and improvements in coping are associated with long-term changes in gambling. However, relationships between coping skills and gambling behavior are fairly strong, regardless of treatment received.

Nonmarital romantic relationship commitment and leave behavior: the mediating role of dissolution consideration.

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Vanderdrift, Laura E; Agnew, Christopher R; Wilson, Juan E

2009-09-01

Two studies investigated the process by which individuals in nonmarital romantic relationships characterized by low commitment move toward enacting leave behaviors. Predictions based on the behavioral, goal, and implementation intention literatures were tested using a measure of dissolution consideration developed for this research. Dissolution consideration assesses how salient relationship termination is for an individual while one's relationship is intact. Study 1 developed and validated a measure of dissolution consideration and Study 2 was a longitudinal test of the utility of dissolution consideration in predicting the enactment of leave behaviors. Results indicated that dissolution consideration mediates the association between commitment and enacting leave behaviors, is associated with taking more immediate action, and provides unique explanatory power in leave behavior beyond the effect of commitment alone. Collectively, the findings suggest that dissolution consideration is an intermediate step between commitment and stay/leave behavior in close relationships.

The effect of stress and personality on dangerous driving behavior among Chinese drivers.

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Ge, Yan; Qu, Weina; Jiang, Caihong; Du, Feng; Sun, Xianghong; Zhang, Kan

2014-12-01

The relationship between stress and road safety has been studied for many years, but the effect of global stress and its joint effect with personality on driving behavior have received little attention in previous studies. This study aimed to elucidate the impact of global stress and various personality traits on driving behavior. 242 drivers completed the Perceived Stress Scale-10 (PSS-10), the Dula Dangerous Driving Index (DDDI), and several personality trait scales related to anger, sensation seeking, and altruism. The results showed that perceived stress and sensation seeking were significantly correlated with the four subcategories of dangerous driving behavior, namely, negative cognitive/emotional driving (NCED), aggressive driving (AD), risky driving (RD), and drunk driving (DD). Moreover, anger was positively correlated with negative cognitive/emotional driving, aggressive driving, and risky driving, and altruism was negatively correlated with aggressive driving and drunk driving. Hierarchical multiple regressions were applied to analyze the mediating effect of personality traits, and the results showed that anger mediated the relationship between stress and dangerous driving behavior and that this mediating role was especially strong for negative cognitive/emotional driving and aggressive driving. Collectively, the results showed that stress is an important factor that can affect people's driving behavior but that personality traits mediate the effect of stress on driving behavior. The findings from this study regarding the relationship among stress, anger, and dangerous driving behavior could be applied in the development of intervention programs for stress and anger management in order to improve drivers' ability to manage emotional thoughts and adjust their behavior on the road. Copyright © 2014 Elsevier Ltd. All rights reserved.

The mediating role of relatedness need satisfaction in the relationship between charitable behavior and well-being: Empirical evidence from China.

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Jiang, Jiang; Zeng, Taoran; Zhang, Chong; Wang, Rong

2016-08-03

Based on self-determination theory, the current research aimed to explore the potential mediating effect of relatedness need satisfaction on the relationship between charitable behavior and well-being in the Chinese context. Employing a cross-sectional design, participants reported data on the aforementioned variables in Study 1. The results indicated that relatedness need satisfaction mediated the positive relationship between charitable behavior and hedonic well-being and that between charitable behavior and eudaimonic well-being. Subsequently, a field experiment was conducted in Study 2. Participants rated their levels of relatedness need satisfaction and well-being after charitable donation behaviors were primed. We again observed consistent results. Specifically, charitable behavior was positively associated with both hedonic and eudaimonic well-being, and these relationships were mediated by relatedness need satisfaction. The above findings help to clarify the association between charitable behavior and people's subjective feelings (i.e., well-being), and they deepen our understanding of the underlying mechanism from the perspective of psychological needs satisfaction. © 2016 International Union of Psychological Science.

Servant Leadership and Follower Outcomes: Mediating Effects of Organizational Identification and Psychological Safety.

Science.gov (United States)

Chughtai, Aamir Ali

2016-10-02

This study investigated the mediating role of organizational identification and psychological safety in the relationship between servant leadership and two employee outcomes: employee voice and negative feedback seeking behavior. The sample for this study comprised of 174 full-time employees drawn from a large food company based in Pakistan. Results showed that organizational identification and psychological safety partially mediated the effects of servant leadership on voice and negative feedback seeking behavior. The theoretical and practical implications of this research are discussed.

Is parenting the mediator of change in behavioral parent training for externalizing problems of youth?

Science.gov (United States)

Forehand, Rex; Lafko, Nicole; Parent, Justin; Burt, Keith B

2014-12-01

Change in parenting behavior is theorized to be the mediator accounting for change in child and adolescent externalizing problems in behavioral parent training (BPT). The purpose of this review is to examine this assumption in BPT prevention and intervention programs. Eight intervention and 17 prevention studies were identified as meeting all criteria or all but one criterion for testing mediation. Parenting behaviors were classified as positive, negative, discipline, monitoring/supervision, or a composite measure. Forty-five percent of the tests performed across studies to test mediation supported parenting as a mediator. A composite measure of parenting and discipline received the most support, whereas monitoring/supervision was rarely examined. More support for the mediating role of parenting emerged for prevention than intervention studies and when meeting all criteria for testing mediation was not required. Although the findings do not call BPT into question as an efficacious treatment, they do suggest more attention should be focused on examining parenting as a putative mediator in BPT. Copyright © 2014 Elsevier Ltd. All rights reserved.

Parenting style as a mediator between children's negative emotionality and problematic behavior in early childhood.

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Paulussen-Hoogeboom, Marja C; Stams, Geert Jan J M; Hermanns, Jo M A; Peetsma, Thea T D; van den Wittenboer, Godfried L H

2008-09-01

Negative emotionality is considered to be the core of the difficult temperament concept (J. E. Bates, 1989; R. L. Shiner, 1998). In this correlational study, the authors examined whether the relations between children's negative emotionality and problematic behavior (internalizing and externalizing) were partially mediated by parenting style (authoritative and authoritarian) in a community sample of 196 3-year-old children and their mothers. The authors assessed maternal perception of child negative emotionality using the Children's Behavior Questionnaire (M. K. Rothbart, S. A. Ahadi, K. L. Hershey, & P. Fisher, 2001) and assessed problematic child behavior by means of maternal report using the Child Behavior Checklist (T. M. Achenbach, 1992). The results showed that the relations between child negative emotionality and internalizing and externalizing behaviors were partially mediated by mothers' authoritative parenting style. Moreover, when the authors used confirmatory factor analysis to decontaminate possible overlap in item content between measures assessing temperament and problematic behavior, the association between negative emotionality and internalizing behavior was fully mediated by authoritative parenting.

Executive Function, Behavioral Self-Regulation, and School Related Well-Being Did Not Mediate the Effect of School-Based Physical Activity on Academic Performance in Numeracy in 10-Year-Old Children. The Active Smarter Kids (ASK) Study.

Science.gov (United States)

Aadland, Katrine N; Aadland, Eivind; Andersen, John R; Lervåg, Arne; Moe, Vegard F; Resaland, Geir K; Ommundsen, Yngvar

2018-01-01

Inconsistent findings exist for the effect of school-based physical activity interventions on academic performance. The Active Smarter Kids (ASK) study revealed a favorable intervention effect of school-based physical activity on academic performance in numeracy in a subsample of 10-year-old elementary schoolchildren performing poorer at baseline in numeracy. Aiming to explain this finding, we investigated the mediating effects of executive function, behavioral self-regulation, and school related well-being in the relation between the physical activity intervention and child's performance in numeracy. An ANCOVA model with latent variable structural equation modeling was estimated using data from 360 children (the lower third in academic performance in numeracy at baseline). The model consisted of the three latent factors as mediators; executive function, behavioral self-regulation, and school related well-being. We found no mediating effects of executive function, behavioral self-regulation or school related well-being in the relationship between the ASK intervention and academic performance in numeracy ( p ≥ 0.256). Our results suggest that the effect of the intervention on performance in numeracy in the present sample is not explained by change in executive function, behavioral self-regulation, or school related well-being. We suggest this finding mainly could be explained by the lack of effect of the intervention on the mediators, which might be due to an insufficient dose of physical activity. Trial registration: Clinicaltrials.gov registry, trial registration number: NCT02132494.

Executive Function, Behavioral Self-Regulation, and School Related Well-Being Did Not Mediate the Effect of School-Based Physical Activity on Academic Performance in Numeracy in 10-Year-Old Children. The Active Smarter Kids (ASK Study

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Katrine N. Aadland

2018-02-01

Full Text Available Inconsistent findings exist for the effect of school-based physical activity interventions on academic performance. The Active Smarter Kids (ASK study revealed a favorable intervention effect of school-based physical activity on academic performance in numeracy in a subsample of 10-year-old elementary schoolchildren performing poorer at baseline in numeracy. Aiming to explain this finding, we investigated the mediating effects of executive function, behavioral self-regulation, and school related well-being in the relation between the physical activity intervention and child’s performance in numeracy. An ANCOVA model with latent variable structural equation modeling was estimated using data from 360 children (the lower third in academic performance in numeracy at baseline. The model consisted of the three latent factors as mediators; executive function, behavioral self-regulation, and school related well-being. We found no mediating effects of executive function, behavioral self-regulation or school related well-being in the relationship between the ASK intervention and academic performance in numeracy (p ≥ 0.256. Our results suggest that the effect of the intervention on performance in numeracy in the present sample is not explained by change in executive function, behavioral self-regulation, or school related well-being. We suggest this finding mainly could be explained by the lack of effect of the intervention on the mediators, which might be due to an insufficient dose of physical activity.Trial registration: Clinicaltrials.gov registry, trial registration number: NCT02132494.

Can we get some cooperation around here? The mediating role of group norms on the relationship between team personality and individual helping behaviors.

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Gonzalez-Mulé, Erik; DeGeest, David S; McCormick, Brian W; Seong, Jee Young; Brown, Kenneth G

2014-09-01

Drawing on the group-norms theory of organizational citizenship behaviors and person-environment fit theory, we introduce and test a multilevel model of the effects of additive and dispersion composition models of team members' personality characteristics on group norms and individual helping behaviors. Our model was tested using regression and random coefficients modeling on 102 research and development teams. Results indicated that high mean levels of extraversion are positively related to individual helping behaviors through the mediating effect of cooperative group norms. Further, low variance on agreeableness (supplementary fit) and high variance on extraversion (complementary fit) promote the enactment of individual helping behaviors, but only the effects of extraversion were mediated by cooperative group norms. Implications of these findings for theories of helping behaviors in teams are discussed. PsycINFO Database Record (c) 2014 APA, all rights reserved.

The Effect of Religious Involvement on Life Satisfaction among Korean Christians: Focused on the Mediating Effect of Spiritual Well-Being and Self-Esteem.

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Yoo, Jieun

2017-12-01

The present study examined the relationship between two categories of religious involvement, namely religious belief and religious behavior, and life satisfaction among Korean Christians (N = 278) with spiritual well-being and self-esteem as potential mediators in this relationship by using structural equation modeling (SEM). The results supported the full mediated structural model and indicated that religious belief had a significant indirect effect on life satisfaction through the mediators, spiritual well-being and self-esteem. Religious behavior did not have an indirect or direct effect on life satisfaction among Korean Christians. The significance, implications, and limitations of the study were discussed.

Oxytocin mediated behavior in invertebrates: An evolutionary perspective.

Science.gov (United States)

Lockard, Meghan A; Ebert, Margaret S; Bargmann, Cornelia I

2017-02-01

The molecular and functional conservation of oxytocin-related neuropeptides in behavior is striking. In animals separated by at least 600 million years of evolution, from roundworms to humans, oxytocin homologs play critical roles in the modulation of reproductive behavior and other biological functions. Here, we review the roles of oxytocin in invertebrate behavior from an evolutionary perspective. We begin by tracing the evolution of oxytocin through the invertebrate animal lineages, and then describe common themes in invertebrate behaviors that are mediated by oxytocin-related peptides, including reproductive behavior, learning and memory, food arousal, and predator/prey relationships. Finally, we discuss interesting future directions that have recently become experimentally tractable. Studying oxytocin in invertebrates offers precise insights into the activity of neuropeptides on well-defined neural circuits; the principles that emerge may also be represented in the more complex vertebrate brain. © 2016 Wiley Periodicals, Inc. Develop Neurobiol 77: 128-142, 2017. © 2016 Wiley Periodicals, Inc.

Estimation of causal mediation effects for a dichotomous outcome in multiple-mediator models using the mediation formula.

Science.gov (United States)

Wang, Wei; Nelson, Suchitra; Albert, Jeffrey M

2013-10-30

Mediators are intermediate variables in the causal pathway between an exposure and an outcome. Mediation analysis investigates the extent to which exposure effects occur through these variables, thus revealing causal mechanisms. In this paper, we consider the estimation of the mediation effect when the outcome is binary and multiple mediators of different types exist. We give a precise definition of the total mediation effect as well as decomposed mediation effects through individual or sets of mediators using the potential outcomes framework. We formulate a model of joint distribution (probit-normal) using continuous latent variables for any binary mediators to account for correlations among multiple mediators. A mediation formula approach is proposed to estimate the total mediation effect and decomposed mediation effects based on this parametric model. Estimation of mediation effects through individual or subsets of mediators requires an assumption involving the joint distribution of multiple counterfactuals. We conduct a simulation study that demonstrates low bias of mediation effect estimators for two-mediator models with various combinations of mediator types. The results also show that the power to detect a nonzero total mediation effect increases as the correlation coefficient between two mediators increases, whereas power for individual mediation effects reaches a maximum when the mediators are uncorrelated. We illustrate our approach by applying it to a retrospective cohort study of dental caries in adolescents with low and high socioeconomic status. Sensitivity analysis is performed to assess the robustness of conclusions regarding mediation effects when the assumption of no unmeasured mediator-outcome confounders is violated. Copyright © 2013 John Wiley & Sons, Ltd.

Estimation of Causal Mediation Effects for a Dichotomous Outcome in Multiple-Mediator Models using the Mediation Formula

Science.gov (United States)

Nelson, Suchitra; Albert, Jeffrey M.

2013-01-01

Mediators are intermediate variables in the causal pathway between an exposure and an outcome. Mediation analysis investigates the extent to which exposure effects occur through these variables, thus revealing causal mechanisms. In this paper, we consider the estimation of the mediation effect when the outcome is binary and multiple mediators of different types exist. We give a precise definition of the total mediation effect as well as decomposed mediation effects through individual or sets of mediators using the potential outcomes framework. We formulate a model of joint distribution (probit-normal) using continuous latent variables for any binary mediators to account for correlations among multiple mediators. A mediation formula approach is proposed to estimate the total mediation effect and decomposed mediation effects based on this parametric model. Estimation of mediation effects through individual or subsets of mediators requires an assumption involving the joint distribution of multiple counterfactuals. We conduct a simulation study that demonstrates low bias of mediation effect estimators for two-mediator models with various combinations of mediator types. The results also show that the power to detect a non-zero total mediation effect increases as the correlation coefficient between two mediators increases, while power for individual mediation effects reaches a maximum when the mediators are uncorrelated. We illustrate our approach by applying it to a retrospective cohort study of dental caries in adolescents with low and high socioeconomic status. Sensitivity analysis is performed to assess the robustness of conclusions regarding mediation effects when the assumption of no unmeasured mediator-outcome confounders is violated. PMID:23650048

The dual effects of leading for safety: The mediating role of employee regulatory focus.

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Kark, Ronit; Katz-Navon, Tal; Delegach, Marianna

2015-09-01

This study examined the underlying mechanisms through which transformational and transactional leadership influence employee safety behaviors. Linking leadership theory with self-regulatory focus (SRF) theory, we examined a model of dual effects of leadership on safety initiative and safety compliance behaviors as mediated by promotion and prevention self-regulations. We conducted an experimental study (N = 107), an online study (N = 99) and a field study (N = 798 employees and 49 managers). Results demonstrated that followers' situational promotion focus mediated the positive relationship between transformational leadership and safety initiative behaviors. Through all 3 studies, transactional active leadership was positively associated with followers' situational prevention focus, however, the association between followers' prevention focus and safety compliance behaviors was inconsistent, showing the expected mediation relationships in the experimental setting, but not in the online and field studies. We discuss theoretical and practical implications of the findings. (c) 2015 APA, all rights reserved).

THE MEDIATING ROLE OF ORGANIZATIONAL JUSTICE ON THE EFFECTS OF LEADER-MEMBER EXCHANGE ON ORGANIZATIONAL CITIZINSHIP BEHAVIOUR

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Erol TEKİN

2018-04-01

Full Text Available The aim of the study is to investigate the mediating effect of organizational justice on the effect of leadermember exchange on organizational citizenship behavior. Within the scope of this purpose, a questionnaire study has been carried out on 250 banking employee. The obtained data has been analyzed with factor analysis, correlation analysis and regression analysis. Analyzes has been performed with SPSS 20.0 analysis software. According to the results, it has been found that leader-member exchange affects organizational citizenship behavior positively and meaningfully. Similarly, it has been found that organizational justice affects organizational citizenship behavior positively and meaningfully. It has also been found that organizational justice citizenship behavior has a partial mediation effect on the relation between leader-member exchange and organizational citizenship behavior.

A Mediation Analysis of the ATHENA Intervention for Female Athletes: Prevention of Athletic-Enhancing Substance Use and Unhealthy Weight Loss Behaviors

Science.gov (United States)

Ranby, Krista W; Aiken, Leona S; Elliot, Diane L; Moe, Esther L; McGinnis, Wendy; Goldberg, Linn

2009-01-01

Objective To explain, through mediation analyses, the mechanisms by which ATHENA (Athletes Targeting Healthy Exercise and Nutrition Alternatives), a primary prevention and health promotion intervention designed to deter unhealthy body shaping behaviors among female high school athletes, produced immediate changes in intentions for unhealthy weight loss and steroid/creatine use, and to examine the link to long-term follow-up intentions and behaviors. Methods In a randomized trial of 1668 athletes, intervention participants completed coach-led peer-facilitated sessions during their sport season. Participants provided pre-test, immediate post-test, and 9-month follow-up assessments. Results ATHENA decreased intentions for steroid/creatine use and intentions for unhealthy weight loss behaviors at post-test. These effects were most strongly mediated by social norms and self-efficacy for healthy eating. Low post-test intentions were maintained 9 months later and predicted subsequent behavior. Conclusions ATHENA successfully modified mediators that in turn related to athletic-enhancing substance use and unhealthy weight loss practices. Mediation analyses aid in the understanding of health promotion interventions and inform program development. PMID:19386771

Mentalization mediates the relation between early traumatic experiences and aggressive behavior in adolescence

OpenAIRE

Taubner Svenja; Curth Christian

2013-01-01

The aim of the study was to examine whether mentalization serves as a protective factor against aggressive behavior in adolescence in the context of early traumatization. We present data from a non-clinical sample of adolescents from Germany (n=97) and calculate a mediation model to test the link between early traumatic experiences and aggressive behavior with mentalizing skills as a mediator. Mentalization was assessed with the Reflective Functioning Scale on the Adult-Attachment-Inter...

Media violence and adolescents’ ADHD-related behaviors: The role of parental mediation.

NARCIS (Netherlands)

Nikkelen, Sanne W C; Vossen, H.G.M.; Piotrowski, J. T.; Valkenburg, Patti M.

2016-01-01

We examined the role of parental media mediation in the relationship between media violence and adolescents’ ADHD-related behaviors. Survey data from 1,017 adolescents (10–14 years) show that parents can play an important role in this relationship, depending on the media mediation strategies that

Examination of the Relationship between Psychosocial Mediators and Intervention Effects in It’s Your Game: An Effective HIV/STI/Pregnancy Prevention Intervention for Middle School Students

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Elizabeth Baumler

2012-01-01

Full Text Available A set of mediation analyses were carried out in this study using data from It’s Your Game. . .Keep It Real (IYG, a successful HIV/STI/pregnancy prevention program. The IYG study evaluated a skill and normbased. HIV/STI/pregnancy prevention program that was implemented from 2004 to 2007 among 907 urban low-income middle school youth in Houston, TX, USA. Analyses were carried out to investigate the degree to which a set of proposed psychosocial measures of behavioral knowledge, perceived self-efficacy, behavioral, and normative beliefs, and perceived risky situations, all targeted by the intervention, mediated the intervention’s effectiveness in reducing initiation of sex. The mediation process was assessed by examining the significance and size of the estimated effects from the mediating pathways. The findings from this study provide evidence that the majority of the psychosocial mediators targeted by the IYG intervention are indeed related to the desired behavior and provide evidence that the conceptual theory underlying the targeted psychosocial mediators in the intervention is appropriate. Two of the psychosocial mediators significantly mediated the intervention effect, knowledge of STI signs and symptoms and refusal self-efficacy. This study suggests that the underlying causal mechanisms of action of these interventions are complex and warrant further analyses.

The Relationship between Parent-Child Conflict and Adolescent Antisocial Behavior: Confirming Shared Environmental Mediation

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Klahr, Ashlea M.; Rueter, Martha A.; McGue, Matt; Iacono, William G.; Burt, S. Alexandra

2011-01-01

Prior studies have indicated that the relationship between0020parent-child conflict and adolescent antisocial behavior is at least partially shared environmental in origin. However, all available research on this topic (to our knowledge) relies exclusively on parent and/or adolescent informant-reports, both of which are subject to various forms of rater bias. As the presence of significant shared environmental effects has often been attributed to rater bias in the past (Baker, Jacobsen, Raine, Lozano, & Bezdjian, 2007; Bartels et al., 2004; Bartels et al., 2003; Hewitt, Silberg, Neale, & Eaves, 1992), it would be important to confirm that findings of shared environmental mediation persist when even examining (presumably more objective) observer-ratings of these constructs. The current study thus examined the origins of the relationship between parent-child conflict and adolescent acting-out behavior, as measured using both observer-ratings and various informant-reports. Participants included 1,199 adopted and non-adopted adolescents in 610 families from the Sibling Interaction and Behavior Study (SIBS). Results indicated that parent-child conflict consistently predicts acting-out behavior in adopted adolescents, and moreover, that this association is equivalent to that in biologically-related adolescents. Most importantly, these findings did not vary across parent- and adolescent-reported or observer-ratings of parent-child conflict and acting-out behavior. Such findings argue strongly against rater bias as a primary explanation of shared environmental mediation of the association between parent-child conflict and adolescent antisocial behavior. PMID:21484334

The function of medication beliefs as mediators between personality traits and adherence behavior in people with asthma

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Axelsson M

2013-10-01

Full Text Available Malin Axelsson,1,2 Christina Cliffordson,2 Bo Lundbäck,1 Jan Lötvall11Krefting Research Centre, Institute of Medicine, Internal Medicine and Clinical Nutrition, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden; 2Department of Nursing, Health and Culture, University West, Trollhättan, SwedenBackground: There is evidence that both personality traits and personal beliefs about medications affect adherence behavior. However, limited research exists on how personality and beliefs about asthma medication interact in influencing adherence behavior in people with asthma. To extend our knowledge in this area of adherence research, we aimed to determine the mediating effects of beliefs about asthma medication between personality traits and adherence behavior.Methods: Asthmatics (n=516 selected from a population-based study called West Sweden Asthma Study completed the Neuroticism, Extraversion and Openness to Experience Five-Factor Inventory, the Medication Adherence Report Scale, and the Beliefs about Medicines Questionnaire. Data were analyzed using confirmatory factor analysis and structural equation modeling.Results: Three of the five investigated personality traits – agreeableness, conscientiousness, and neuroticism – were associated with both concerns about asthma medication and adherence behavior. Concerns functioned as a partial mediator for the influencing effects of agreeableness, conscientiousness, and neuroticism on adherence behavior.Conclusion: The findings suggest that personality traits could be used to identify individuals with asthma who need support with their adherence behavior. Additionally, targeting concerns about asthma medication in asthmatics with low levels of agreeableness or conscientiousness or high levels of neuroticism could have a favorable effect on their adherence behavior.Keywords: adherence, individual differences, medication concerns, health behavior

THE EFFECT OF JOB EMBEDDEDNESS ON ORGANIZATIONAL CITIZENSHIP BEHAVIOR: The Mediating Role of Sense of Responsibility

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Bonifacius Riwi Wijayanto

2004-09-01

Nurses (N = 170 and their immediate supervisors ( N = 41 from five privately owned hospital in Jogjakarta participated in this study. Of 340 questionnaires distributed to the respondents, 339 were returned yielding a response rate of 99 percent. Of those returned, 300 questionnaires were available for further analyses. Nurses were asked to respond to a questionnaire of 40 items concerning perception of embeddedness and 4 item concerning sense of responsibility to their employing organization. Nurses’ citizenship behavior were measured using 12 items as rated by their immediate supervisors. The results support the hypothesis that job embeddedness correlates positively with OCB. However, our result failed to support the prediction of the mediating effect of employees’ sense of responsibility in causal relationship between job embeddedness and OCB. The implications of the findings for further research on relationship between job embeddedness and OCB research are discussed.

Behavior change through automated e-mails: mediation analysis of self-help strategy use for depressive symptoms.

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Morgan, Amy J; Mackinnon, Andrew J; Jorm, Anthony F

2013-02-01

To evaluate whether automated e-mails promoting effective self-help strategies for depressive symptoms were effective in changing self-help behavior, and whether this improved depression outcomes. 568 adults with sub-threshold depression participated in a randomized controlled trial and provided complete data. A series of 12 e-mails promoting the use of evidence-based self-help strategies was compared with e-mails providing non-directive depression information. Depression symptoms were assessed with the Patient Health Questionnaire depression scale (PHQ-9) and use of self-help strategies was assessed at baseline and post-intervention. We hypothesized that those receiving the self-help e-mails would increase their use of evidence-based self-help and this would be associated with improvements in depression. Mediation analyses were conducted using a non-parametric bootstrapping procedure. Total use of the self-help strategies promoted in the e-mails significantly mediated the effect of the intervention on depressive symptoms (B = -0.75, SE = 0.16, 95% CI: -1.06 to -0.48). The direct effect of the intervention on depressive symptoms was much smaller and not significant when the mediation path was included. The majority of the individual strategies also had a significant indirect effect on depressive symptoms. In adults with sub-threshold depression, automated e-mails based on behavior change principles can successfully increase use of self-help strategies, leading to a reduction in depressive symptoms. Copyright © 2012 Elsevier Ltd. All rights reserved.

Reciprocal relationships between friends' and parental mediation of adolescents' media use and their sexual attitudes and behavior.

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Nikken, Peter; de Graaf, Hanneke

2013-11-01

Research has argued that adolescents are at risk for harmful effects of sexual media, but little is known about the role of parents and friends on adolescents' media use in regard of these effects. The present two-wave study investigated whether prior parental and friends' influences on adolescents' use of sexual media shape their sexual attitudes and behaviors, and vice versa if prior sexual attitudes and behaviors predict parental and friends' media mediation. At two measurement points 18 months apart, 528 adolescents (12-17 years; 51.3% girls) reported on permissive sexual attitudes, sexual experience, perceived parental and friends' mediation of sexual media use, and communication with parents and friends about sex. Structural Equation Modeling shows that parents' mediation activities on adolescents' media use were not followed by less sexual experience and less permissive attitudes. On the contrary, parental restrictive mediation of girls' media use unexpectedly was followed by somewhat more sexual experience. Friends' interventions with media use did not predict adolescents' sexual experience and attitudes neither. Inverse relationships showed that prior sexual experience was followed by less restrictive parental mediation among boys, and both among boys and girls that permissive sexual attitudes were followed by less restrictive and less active parental mediation. At the same time, sexually more experienced and more permissive boys and girls did report more media pressure from and sexual communication with their friends later on. Our study thus indicates that the opposite agent roles of parents and friends for adolescents also applies to their usage of sexual media.

Pathways between acculturation and health behaviors among residents of low-income housing: the mediating role of social and contextual factors.

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Allen, Jennifer Dacey; Caspi, Caitlin; Yang, May; Leyva, Bryan; Stoddard, Anne M; Tamers, Sara; Tucker-Seeley, Reginald D; Sorensen, Glorian C

2014-12-01

Acculturation may influence health behaviors, yet mechanisms underlying its effect are not well understood. In this study, we describe relationships between acculturation and health behaviors among low-income housing residents, and examine whether these relationships are mediated by social and contextual factors. Residents of 20 low-income housing sites in the Boston metropolitan area completed surveys that assessed acculturative characteristics, social/contextual factors, and health behaviors. A composite acculturation scale was developed using latent class analysis, resulting in four distinct acculturative groups. Path analysis was used to examine interrelationships between acculturation, health behaviors, and social/contextual factors, specifically self-reported social ties, social support, stress, material hardship, and discrimination. Of the 828 respondents, 69% were born outside of the U.S. Less acculturated groups exhibited healthier dietary practices and were less likely to smoke than more acculturated groups. Acculturation had a direct effect on diet and smoking, but not physical activity. Acculturation also showed an indirect effect on diet through its relationship with material hardship. Our finding that material hardship mediated the relationship between acculturation and diet suggests the need to explicate the significant role of financial resources in interventions seeking to promote healthy diets among low-income immigrant groups. Future research should examine these social and contextual mediators using larger, population-based samples, preferably with longitudinal data. Copyright © 2014 The Authors. Published by Elsevier Ltd.. All rights reserved.

Ethical Leadership and Teachers' Voice Behavior: The Mediating Roles of Ethical Culture and Psychological Safety

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Sagnak, Mesut

2017-01-01

The purpose of this study is to investigate the mediating effects of ethical culture and psychological safety on the relationship between ethical leadership and teachers' voice behavior. The sample consists of 342 teachers randomly selected from 25 primary and secondary schools. Four different instruments are used in this study. The scales have…

The role of organizational virtuousness in organizational citizenship behavior of teachers: The test of direct and indirect effect through job satisfaction mediating

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Kooshki Abedi Sara

2016-01-01

Full Text Available The aim of this study was to test the direct and indirect effect of organizational virtuousness in organizational citizenship behaviors of teachers and propose a model with a causal connection. The population consisted of all secondary school teachers of Karaj metropolitan areas where by cluster method sampling and Morgan table 403 people selected. The aim of this study is functional and in terms of methodology is survey. Standard questionnaires used to collect data and all of them had good reliability and validity. To analyze the data confirmatory factor analysis and structural equation modeling techniques used. The results showed that schools organizational virtuousness directly affect Less and non-significant on organizational citizenship behavior of teachers. The assumed test pattern suggests that organizational virtuousness with the mediation of job satisfaction can affect the behavior of teachers' organizational citizenship behavior. The findings of this study emphasis the importance of reinforcement of schools as well as teachers' job satisfaction and organizational virtuousness.

The cognitive mediation model: factors influencing public knowledge of the H1N1 pandemic and intention to take precautionary behaviors.

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Ho, Shirley S; Peh, Xianghong; Soh, Veronica W L

2013-01-01

This study uses the cognitive mediation model as the theoretical framework to examine the influence of motivations, communication, and news elaboration on public knowledge of the H1N1 pandemic and the intention to take precautionary behaviors in Singapore. Using a nationally representative random digit dialing telephone survey of 1,055 adult Singaporeans, the authors' results show that the cognitive mediation model can be applied to health contexts, in which motivations (surveillance gratification, guidance, and need for cognition) were positively associated with news attention, elaboration, and interpersonal communication. News attention, elaboration, and interpersonal communication in turn positively influence public knowledge about the H1N1 influenza. In addition, results show that the motivations have significant indirect effects on behavioral intentions, as partially mediated by communication (media attention and interpersonal communication), elaboration, and knowledge. The authors conclude that the cognitive mediation model can be extended to behavioral outcomes, above and beyond knowledge. Implications for theory and practice for health communication were discussed.

Self-Efficacy and Social Support Mediate the Relationship between Internal Health Locus of Control and Health Behaviors in College Students

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Marr, Joni; Wilcox, Sara

2015-01-01

Background: Internal health locus of control has been associated with positive health outcomes and behaviors. Understanding the mechanisms of this relationship are key to designing and implementing effective health behavior intervention programs. Purpose: The purpose was to examine whether self-efficacy and social support mediate the relationship…

The Virtual Midas Touch: Helping Behavior After a Mediated Social Touch.

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Haans, A; Usselsteijn, W A

2009-01-01

A brief touch on the upper arm increases people's altruistic behavior and willingness to comply with a request. In this paper, we investigate whether this Midas touch phenomenon would also occur under mediated conditions (i.e., touching via an arm strap equipped with electromechanical actuators). Helping behavior was more frequently endorsed in the touch, compared to the no-touch condition, but this difference was not found to be statistically significant. However, a meta-analytical comparison with published research demonstrated that the strength of the virtual Midas touch is of the same magnitude as that of the Midas touch in unmediated situations. The present experiment, thus, provides empirical evidence that touch-like qualities can be attributed to electromechanical stimulation. This is important for the field of mediated social touch of which the design rationale is based on the assumption that mediated touch by means of tactile feedback technologies is processed in ways similar to real physical contact.

Family material hardship and chinese adolescents' problem behaviors: a moderated mediation analysis.

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Sun, Wenqiang; Li, Dongping; Zhang, Wei; Bao, Zhenzhou; Wang, Yanhui

2015-01-01

In the current study, we examined a moderated mediation model using the risk and resilience framework. Specifically, the impact of family material hardship on adolescent problem behaviors was examined in a Chinese sample; we used the family stress model framework to investigate parental depression and negative parenting as potential mediators of the relation between family material hardship and adolescents' problem behaviors. In addition, based on resilience theory, we investigated adolescents' resilience as a potential protective factor in the development of their internalizing and externalizing problems. Participants included 1,419 Chinese adolescents (mean age = 15.38 years, SD = 1.79) and their primary caregivers. After controlling for covariates (age, gender, location of family residence, and primary caregiver), we found that parental depression and negative parenting mediated the association between family material hardship and adolescents' problem behaviors. Furthermore, the adolescent resilience moderated the relationship between negative parenting and internalizing problems in a protective-stabilizing pattern; in addition, a protective-reactive pattern also emerged when adolescent resilience was examined as a moderator of the relationship between negative parenting and externalizing problems. These findings contribute to a comprehensive understanding of the mechanisms of risk and resilience in youth development. Moreover, the findings have important implications for the prevention of adolescent problem behaviors.

Family material hardship and chinese adolescents' problem behaviors: a moderated mediation analysis.

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Wenqiang Sun

Full Text Available In the current study, we examined a moderated mediation model using the risk and resilience framework. Specifically, the impact of family material hardship on adolescent problem behaviors was examined in a Chinese sample; we used the family stress model framework to investigate parental depression and negative parenting as potential mediators of the relation between family material hardship and adolescents' problem behaviors. In addition, based on resilience theory, we investigated adolescents' resilience as a potential protective factor in the development of their internalizing and externalizing problems. Participants included 1,419 Chinese adolescents (mean age = 15.38 years, SD = 1.79 and their primary caregivers. After controlling for covariates (age, gender, location of family residence, and primary caregiver, we found that parental depression and negative parenting mediated the association between family material hardship and adolescents' problem behaviors. Furthermore, the adolescent resilience moderated the relationship between negative parenting and internalizing problems in a protective-stabilizing pattern; in addition, a protective-reactive pattern also emerged when adolescent resilience was examined as a moderator of the relationship between negative parenting and externalizing problems. These findings contribute to a comprehensive understanding of the mechanisms of risk and resilience in youth development. Moreover, the findings have important implications for the prevention of adolescent problem behaviors.

Family Material Hardship and Chinese Adolescents’ Problem Behaviors: A Moderated Mediation Analysis

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Sun, Wenqiang; Li, Dongping; Zhang, Wei; Bao, Zhenzhou; Wang, Yanhui

2015-01-01

In the current study, we examined a moderated mediation model using the risk and resilience framework. Specifically, the impact of family material hardship on adolescent problem behaviors was examined in a Chinese sample; we used the family stress model framework to investigate parental depression and negative parenting as potential mediators of the relation between family material hardship and adolescents’ problem behaviors. In addition, based on resilience theory, we investigated adolescents’ resilience as a potential protective factor in the development of their internalizing and externalizing problems. Participants included 1,419 Chinese adolescents (mean age = 15.38 years, SD = 1.79) and their primary caregivers. After controlling for covariates (age, gender, location of family residence, and primary caregiver), we found that parental depression and negative parenting mediated the association between family material hardship and adolescents’ problem behaviors. Furthermore, the adolescent resilience moderated the relationship between negative parenting and internalizing problems in a protective-stabilizing pattern; in addition, a protective-reactive pattern also emerged when adolescent resilience was examined as a moderator of the relationship between negative parenting and externalizing problems. These findings contribute to a comprehensive understanding of the mechanisms of risk and resilience in youth development. Moreover, the findings have important implications for the prevention of adolescent problem behaviors. PMID:26010256

Depression in Adults with Attention-Deficit/Hyperactivity Disorder (ADHD): The Mediating Role of Cognitive-Behavioral Factors

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Zvorsky, Ivori; Safren, Steven A.

2015-01-01

Adults with Attention-Deficit/Hyperactivity Disorder (ADHD) are at increased risk for depressive disorders but little is known about the potential cognitive and behavioral mechanisms of risk that could shape treatment. This study evaluated the degree to which cognitive-behavioral constructs associated with depression and its treatment—dysfunctional attitudes and cognitive-behavioral avoidance—accounted for variance in depressive symptoms and disorder in adults with ADHD. 77 adults clinically diagnosed with ADHD completed self-report questionnaires, diagnostic interviews, and clinician-administered symptom rating scales. Statistical mediation analysis was employed and indirect effects assessed using bootstrap analysis and bias-corrected confidence intervals. Controlling for recent negative life events, dysfunctional attitudes and cognitive-behavioral avoidance fully accounted for the variance between ADHD symptoms and depressive symptoms. Each independent variable partially mediated the other in accounting for depression symptoms suggesting overlapping and unique variance. Cognitive-behavioral avoidance, however, was more strongly related to meeting diagnostic criteria for a depressive disorder than were dysfunctional attitudes. Processes that are targeted in cognitive behavior therapy (CBT) for depression were associated with symptoms in adults with ADHD. Current CBT approaches for ADHD incorporate active coping skills and cognitive restructuring and such approaches could be further tailored to address the ADHD-depression comorbidity. PMID:26089578

Mediation of self-regulation and mood in the relationship of changes in high emotional eating and nutritional behaviors: Moderating effects of physical activity.

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Annesi, James J; Mareno, Nicole; McEwen, Kristin L

2016-12-01

High emotional eating (EE) is prevalent in women with obesity. A previous study's subsample of obese women classified as high emotional eaters participated in either a physical activity-focused experimental (n = 29) or an educationally focused comparison (n = 22) behavioral treatment and was assessed over phases of expected weight loss (baseline-month 6) and short- and long-term regain (months 6-12 and 6-24, respectively). The study's aim was to assess theory-based psychological and behavioral mediation and moderation of changes in nutritional behaviors via emotional eating change in order to inform behavioral weight-loss treatments. During the weight-loss phase, significant improvements in eating self-regulation and mood significantly mediated the relationship of reduced EE and intake of both fruits and vegetables (FV) and sweets. Self-regulation was a significant independent mediator. Physical activity significantly moderated the relationship between EE and self-regulation changes. All variables demonstrated large positive effects and significant time × group interactions favoring the experimental group. During the short and long-term phases of expected weight regain, there were no significant changes in FV intake, although consumption of sweets significantly increased during months 6-24. Change in FV and sweets significantly predicted weight change, which was significantly greater in the experimental vs. comparison group over both the initial 6 months (-6.1% vs. -2.6%) and full 24 months of the study (-7.6% vs. -1.3%). Findings suggest that behavioral treatments should address EE through improvements in self-regulation and mood, and supported physical activity will aid in that process. The need for an improved understanding of weight-loss maintenance remains. © 2016 Scandinavian Psychological Associations and John Wiley & Sons Ltd.

The Effect of Health Beliefs, Media Perceptions, and Communicative Behaviors on Health Behavioral Intention: An Integrated Health Campaign Model on Social Media.

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Yoo, Sun-Wook; Kim, Jarim; Lee, Yeunjae

2018-01-01

Social media have recently gained attention as a potential health campaign tool. This study examines this line of expectation concerning the role social media may play in health campaigns by testing an integrated health campaign model that combines insights from research on social media-specific perceptions and communicative behaviors in order to predict health behaviors. Specifically, this study aims to (a) develop a more holistic social media campaign model for predicting health behaviors in the social media context, (b) investigate how social media channel-related perceptions affect preventive health behaviors, and (c) investigate how communicative behaviors mediate perceptions and behavioral intention. The study conducted an online survey of 498 females who followed the Purple Ribbon Twitter campaign (@pprb), a cervical cancer prevention campaign. The results indicated that information acquisition mediated perceived risk's effect on intention. Information acquisition also mediated the relationships between intention and information selection and information transmission. On the other hand, social media-related perceptions indirectly impacted behavioral intention through communicative behaviors. The findings' theoretical and practical implications are discussed.

The direct effects of inattention and hyperactivity/impulsivity on peer problems and mediating roles of prosocial and conduct problem behaviors in a community sample of children.

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Andrade, Brendan F; Tannock, Rosemary

2013-11-01

This study tested whether children's symptoms of inattention and hyperactivity/impulsivity were associated with peer problems and whether these associations were mediated by conduct problems and prosocial behaviors. A community sample of 500 children, including 245 boys and 255 girls, who ranged in age from 6 to 9 years (M = 7.6, SD = 0.91) were recruited. Teachers' report of children's inattention, hyperactivity/impulsivity, conduct problems, prosocial behaviors, and peer problems was collected. Symptoms of inattention and hyperactivity/impulsivity were significantly positively associated with peer problems. Conduct problems were associated with more peer problems and prosocial behaviors with less peer problems. Conduct problems and prosocial behaviors partially mediated the association between hyperactivity/impulsivity and peer problems and fully mediated the inattention-peer problems association. Findings show that prosocial behaviors and conduct problems are important variables that account for some of the negative impact of symptoms of inattention and hyperactivity/impulsivity on peer functioning.

Avoidant coping partially mediates the relationship between patient problem behaviors and depressive symptoms in spousal Alzheimer caregivers.

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Mausbach, Brent T; Aschbacher, Kirstin; Patterson, Thomas L; Ancoli-Israel, Sonia; von Känel, Roland; Mills, Paul J; Dimsdale, Joel E; Grant, Igor

2006-04-01

Caring for a loved one with Alzheimer disease is a highly stressful experience that is associated with significant depressive symptoms. Previous studies indicate a positive association between problem behaviors in patients with Alzheimer disease (e.g., repeating questions, restlessness, and agitation) and depressive symptoms in their caregivers. Moreover, the extant literature indicates a robust negative relationship between escape-avoidance coping (i.e., avoiding people, wishing the situation would go away) and psychiatric well-being. The purpose of this study was to test a mediational model of the associations between patient problem behaviors, escape-avoidance coping, and depressive symptoms in Alzheimer caregivers. Ninety-five spousal caregivers (mean age: 72 years) completed measures assessing their loved ones' frequency of problem behaviors, escape-avoidance coping, and depressive symptoms. A mediational model was tested to determine if escape-avoidant coping partially mediated the relationship between patient problem behaviors and caregiver depressive symptoms. Patient problem behaviors were positively associated with escape-avoidance coping (beta = 0.38, p avoidance coping was positively associated with depressive symptoms (beta = 0.33, p avoidance coping. Sobel's test confirmed that escape-avoidance coping significantly mediated the relationship between problem behaviors and depressive symptoms (z = 2.07, p avoidance coping partially mediates the association between patient problem behaviors and depressive symptoms among elderly caregivers of spouses with dementia. This finding provides a specific target for psychosocial interventions for caregivers.

Do sedentary behaviors mediate associations between socio-demographic characteristics and BMI in women living in socio-economically disadvantaged neighborhoods?

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Compernolle, Sofie; De Cocker, Katrien; Abbott, Gavin; Verloigne, Maïté; Cardon, Greet; De Bourdeaudhuij, Ilse; Ball, Kylie

2015-04-09

Women living in deprived neighborhoods are a risk group for overweight and obesity, particularly during the childbearing years. Several socio-demographic characteristics may compound this risk, but little is known about why this might be the case. Sedentary behaviors are emerging as a socio-demographically patterned risk factor for obesity. The purpose of the present study was to assess socio-demographic differences in sedentary behaviors, and to examine whether these behaviors could explain the relation between socio-demographic variables and BMI (BMI) in this risk group. Women aged 18-46 years were recruited from 40 urban and 40 rural deprived neighborhoods in Victoria, Australia. In total, 3879 women reported socio-demographic variables (age, educational level, employment status, marital status, number of children, residential location and country of birth), sedentary behaviors (television time, computer time, total screen time and total sedentary time), physical activity, and height and weight, which were used to calculate BMI. For each socio-demographic variable, four single mediation models were conducted using two-level mixed-models regression analyses. Mediating effects were examined using the MacKinnon product-of-coefficients procedure and the Sobel test. All socio-demographic variables were significantly associated with sedentary behaviors. Single mediation analyses revealed that television time (αβ = 0.017, 95% CI = 0.000, 0.030) and total screen time (αβ = 0.006, 95% CI = 0.000, 0.012) mediated 14.1% and 4.9% of the relationship between educational level and BMI, respectively. Total screen time mediated 45.1% of the relationship between employment status and BMI (αβ = -0.020, 95% CI = -0.033, -0.006), and television time mediated 8.2% of the relationship between country of birth and BMI (αβ = -0.008, 95% CI = -0.016, -0.001). Sedentary behaviors differed depending on socio-demographic characteristics, and partly

Transgenerational effects of environmental enrichment on repetitive motor behavior development.

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Bechard, Allison R; Lewis, Mark H

2016-07-01

The favorable consequences of environmental enrichment (EE) on brain and behavior development are well documented. Much less is known, however, about transgenerational benefits of EE on non-enriched offspring. We explored whether transgenerational effects of EE might extend to the development of repetitive motor behaviors in deer mice. Repetitive motor behaviors are invariant patterns of movement that, across species, can be reduced by EE. We found that EE not only attenuated the development of repetitive behavior in dams, but also in their non-enriched offspring. Moreover, maternal behavior did not seem to mediate the transgenerational effect we found, although repetitive behavior was affected by reproductive experience. These data support a beneficial transgenerational effect of EE on repetitive behavior development and suggest a novel benefit of reproductive experience. Copyright © 2016 Elsevier B.V. All rights reserved.

Poverty and Behavior Problems during Early Childhood: The Mediating Role of Maternal Depression Symptoms and Parenting

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Mazza, Julia Rachel; Pingault, Jean-Baptiste; Booij, Linda; Boivin, Michel; Tremblay, Richard; Lambert, Jean; Zunzunegui, Maria Victoria; Côté, Sylvana

2017-01-01

Poverty is a well-established risk factor for behavior problems, yet our understanding of putative family mediators during early childhood (i.e., before age 5 years) is limited. The present study investigated whether the association between poverty and behavior problems during early childhood is mediated simultaneously by perceived parenting,…

Estimation of Causal Mediation Effects for a Dichotomous Outcome in Multiple-Mediator Models using the Mediation Formula

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Wang, Wei; Nelson, Suchitra; Albert, Jeffrey M.

2013-01-01

Mediators are intermediate variables in the causal pathway between an exposure and an outcome. Mediation analysis investigates the extent to which exposure effects occur through these variables, thus revealing causal mechanisms. In this paper, we consider the estimation of the mediation effect when the outcome is binary and multiple mediators of different types exist. We give a precise definition of the total mediation effect as well as decomposed mediation effects through individual or sets ...

Parenting intervention effects on parental depressive symptoms: examining the role of parenting and child behavior.

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Wong, Jessie J; Gonzales, Nancy A; Montaño, Zorash; Dumka, Larry; Millsap, Roger E

2014-06-01

Parental depression is a major risk factor in child development. Growing research suggests parenting programs can positively impact parental depressive symptoms, although the specific mechanisms that explain these effects are unknown. The current study examined parenting mediated effects of a parenting program on mothers' and fathers' depressive symptoms, as well as the role of child behavior in linking parenting to reductions in depressive symptoms. The study samples included 494 mothers and 288 fathers of Mexican origin adolescents who participated in a randomized trial of the Bridges to High School Program/Proyecto Puentes a la Secundaria, a universal prevention and promotion intervention that included parent training but did not directly target parental depressive symptoms. Parenting mediator models tested program effects on parental depressive symptoms through changes in harsh and supportive parenting. Results showed a significant indirect intervention effect on maternal depressive symptoms through changes in mothers' harsh parenting. Next, child behavior models revealed a partial mediation effect of harsh parenting and a full mediation effect of supportive parenting on maternal depressive symptoms through mothers' reports of child externalizing symptoms. Indirect effects of fathers' harsh and supportive parenting on paternal depressive symptoms were also found through fathers' reports of child behavior. PsycINFO Database Record (c) 2014 APA, all rights reserved.

Stress and health behaviors as potential mediators of the relationship between neighborhood quality and allostatic load.

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Buschmann, Robert N; Prochaska, John D; Cutchin, Malcolm P; Peek, M Kristen

2018-03-29

Neighborhood quality is associated with health. Increasingly, researchers are focusing on the mechanisms underlying that association, including the role of stress, risky health behaviors, and subclinical measures such as allostatic load (AL). This study uses mixed-effects regression modeling to examine the association between two objective measures and one subjective measure of neighborhood quality and AL in an ethnically diverse population-based sample (N = 2706) from a medium-sized Texas city. We also examine whether several measures of psychological stress and health behaviors mediate any relationship between neighborhood quality and AL. In this sample, all three separate measures of neighborhood quality were associated with individual AL (P < .01). However, only the subjective measure, perceived neighborhood quality, was associated with AL after adjusting for covariates. In mixed-effects multiple regression models there was no evidence of mediation by either stress or health behaviors. In this study, only one measure of neighborhood quality was related to a measure of health, which contrasts with considerable previous research in this area. In this sample, neighborhood quality may affect AL through other mechanisms, or there may be other health-affecting factors is this area that share that overshadow local neighborhood variation. Copyright © 2018 Elsevier Inc. All rights reserved.

"Doing what I do best": The association between skill utilization and employee health with healthy behavior as a mediator.

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Fujishiro, Kaori; Heaney, Catherine A

2017-02-01

Skill utilization, defined as having the opportunity to do one's best at work, has been examined as a contributor to productivity, organizational efficiency, job satisfaction, and mental health. Drawing from self-determination theory, we postulate that high levels of skill utilization are positively associated with physical health and that some of the effect is mediated by health behavior. Using the 2014 Gallup Daily Tracking Survey data (n = 87,316), a nationally representative sample of working adults in the United States, we examine the associations between perceived skill utilization and five health outcomes (self-rated health, hypertension, high cholesterol, cancer, asthma) with healthy behavior (regular exercising, fruits and vegetable consumption) as a mediator of the associations. The regression results showed that a one-point increase in skill utilization (on a three-point scale) was associated with 20% lower odds of reporting poor or fair health, 3% and 8% lower odds of reporting hypertension and high cholesterol, but had no significant association with cancer or asthma. Health behavior mediated 10% of the association between skill utilization and self-rated health, 46% for hypertension, and 18% for high cholesterol. The findings suggest that providing employees the opportunities to use their skills well at work improves health in general, and the effect is partly through enhancing the likelihood of engaging in healthy behaviors. Implications for organizational practice as well as future research directions are discussed. Published by Elsevier Ltd.

Teammate Prosocial and Antisocial Behaviors Predict Task Cohesion and Burnout: The Mediating Role of Affect.

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Al-Yaaribi, Ali; Kavussanu, Maria

2017-06-01

The manner in which teammates behave toward each other when playing sport could have important achievement-related consequences. However, this issue has received very little research attention. In this study, we investigated whether (a) prosocial and antisocial teammate behaviors predict task cohesion and burnout, and (b) positive and negative affect mediates these relationships. In total, 272 (M age  = 21.86, SD = 4.36) team-sport players completed a multisection questionnaire assessing the aforementioned variables. Structural equation modeling indicated that prosocial teammate behavior positively predicted task cohesion and negatively predicted burnout, and these relationships were mediated by positive affect. The reverse pattern of relationships was observed for antisocial teammate behavior which negatively predicted task cohesion and positively predicted burnout, and these relationships were mediated by negative affect. Our findings underscore the importance of promoting prosocial and reducing antisocial behaviors in sport and highlight the role of affect in explaining the identified relationships.

Mediators of the Relation Between Community Violence and Sexual Risk Behavior Among Adults Attending a Public Sexually Transmitted Infection Clinic.

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Senn, Theresa E; Walsh, Jennifer L; Carey, Michael P

2016-07-01

Prior research shows that violence is associated with sexual risk behavior, but little is known about the relation between community violence (i.e., violence that is witnessed or experienced in one's neighborhood) and sexual risk behavior. To better understand contextual influences on HIV risk behavior, we asked 508 adult patients attending a publicly funded STI clinic in the U.S. (54 % male, M age = 27.93, 68 % African American) who were participating in a larger trial to complete a survey assessing exposure to community violence, sexual risk behavior, and potential mediators of the community violence-sexual risk behavior relation (i.e., mental health, substance use, and experiencing intimate partner violence). A separate sample of participants from the same trial completed measures of sexual behavior norms, which were aggregated to create measures of census tract sexual behavior norms. Data analyses controlling for socioeconomic status revealed that higher levels of community violence were associated with more sexual partners for men and with more episodes of unprotected sex with non-steady partners for women. For both men and women, substance use and mental health mediated the community violence-sexual risk behavior relation; in addition, for men only, experiencing intimate partner violence also mediated this relation. These results confirm that, for individuals living in communities with high levels of violence, sexual risk reduction interventions need to address intimate partner violence, substance use, and mental health to be optimally effective.

Income and children's behavioral functioning: a sequential mediation analysis.

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Shelleby, Elizabeth C; Votruba-Drzal, Elizabeth; Shaw, Daniel S; Dishion, Thomas J; Wilson, Melvin N; Gardner, Frances

2014-12-01

Children from low-income households tend to exhibit higher levels of conduct problems and emotional problems, yet the pathways linking economic disadvantage to children's behavioral functioning are not well understood. This study uses data from the Early Steps Multisite (ESM) project (N = 731) to investigate associations between family income in early childhood and children's conduct problems and emotional problems in middle childhood. The study explores whether the associations from income to child conduct problems and emotional problems operate through maternal depressive symptoms and 3 family risk factors in early childhood-harsh parenting, parenting hassles, and chaos in the home environment. Results of a sequential mediation model revealed significant indirect effects of family income on children's conduct problems operating through maternal depressive symptoms and parenting hassles and indirect effects of family income on children's emotional problems operating through maternal depressive symptoms, chaos in the home environment, and parenting hassles. Implications of these findings for understanding processes through which income influences child functioning are discussed.

The Effects Of Leadership Styles On Goal Clarity And Fairness Mediated Used Performance Measure

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Amris Rusli Tanjung

2017-04-01

Full Text Available This paper investigate the effects of superiors performance evaluation behaviors on subordinates work-related attitudes mediated used performance measure. We used leadership style initiating structure and consideration and performance measure use objective and subjective measures on managerial work related attitudes goal clarity and evaluation fairness. We test our hypotheses using survey data from 56 middle-level managers in 4 services organizations. The results from Structural Equation Model with PLS show that an initiating structure leadership style has significant effect goal clarity and used objective performance measure mediated relationship initiating structure and goal clarity and used subjective performance measure not mediated relationship consideration leadership style and fairness in evaluation. Consideration leadership behavior instead only has a direct impact on fairness in evaluation. These findings have important implications for management accounting research on superiors use of performance measures and provide an explanation of some of the problematic findings in the literature.

Psychological maltreatment, emotional and behavioral problems in adolescents: The mediating role of resilience and self-esteem.

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Arslan, Gökmen

2016-02-01

In this study, structural equation modeling was used to examine the mediating role of resilience and self-esteem in the relationships between psychological maltreatment-emotional problems and psychological maltreatment-behavioral problems in adolescents. Participants were 937 adolescents from different high schools in Turkey. The sample included 502 female (53.6%) and 435 male (46.4%) students, 14-19 years old (mean age=16.51, SD=1.15). Results indicated that psychological maltreatment was negatively correlated with resilience and self-esteem, and positively correlated with behavioral problems and emotional problems. Resilience and self-esteem also predicted behavioral problems and emotional problems. Finally, psychological maltreatment predicted emotional and behavioral problems mediated by resilience and self-esteem. Resilience and self-esteem partially mediated the relationship between psychological maltreatment-behavioral and psychological maltreatment-emotional problems in adolescents. Thus, resilience and self-esteem appear to play a protective role in emotional problems and behavioral problems in psychologically maltreated individuals. Implications are discussed and suggestions for psychological counselors and other mental health professionals are presented. Copyright © 2015 Elsevier Ltd. All rights reserved.

Attitude towards littering as a mediator of the relationship between personality attributes and responsible environmental behavior

International Nuclear Information System (INIS)

Ojedokun, Oluyinka

2011-01-01

Highlights: → Independently, altruism and locus of control contributed significantly toward attitude towards littering. → Altruism and locus of control jointly contributed significantly to attitude towards littering. → The results further show a significant joint influence of altruism and locus of control on REB. → The independent contributions reveal that altruism and locus of control contribute significantly to REB. → Attitude towards littering mediates the relationship between locus of control and REB. - Abstract: The study tested whether attitude towards littering mediates the relationship between personality attributes (altruism and locus of control) and responsible environmental behavior (REB) among some residents of Ibadan metropolis, Nigeria. Using multistage sampling technique, measures of each construct were administered to 1360 participants. Results reveal significant independent and joint influence of personality attributes on attitude towards littering and responsible environmental behavior, respectively. Attitude towards littering also mediates the relationship between personality characteristics and REB. These findings imply that individuals who possess certain desirable personality characteristics and who have unfavorable attitude towards littering have more tendencies to engage in pro-environmental behavior. Therefore, stakeholders who have waste management as their priority should incorporate this information when guidelines for public education and litter prevention programs are being developed. It is suggested that psychologists should be involved in designing of litter prevention strategies. This will ensure the inclusion of behavioral issues in such strategies. An integrated approach to litter prevention that combines empowerment, cognitive, social, and technical solutions is recommended as the most effective tool of tackling the litter problem among residents of Ibadan metropolis.

Relationships between the Advertising Appeal and Behavioral Intention: The Mediating role of the Attitude towards Advertising Appeal

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Raza Syed Hassan

2017-01-01

Full Text Available The link between the advertising appeal, attitude and behavioral intention is dynamic in nature, however, little research has been pursued towards explaining the mediating role of attitude towards the advertising in link of the advertising appeal with the behavioral intention. Researchers have identified the importance of the attitude in the connection of the advertising appeal within the framework of the (TPB which remains unaddressed in the explicating the mediation of the attitude in relationship of advertising appeal and behavioral intention. This paper aims to provide insight of the attitude towards the advertising as the mediating factor in explaining the relationship between the advertising appeal and behavioral intention. In addition, this paper is only a theoretical exploration, it is expected that this work lead towards an explanation of the mediating role of the attitude to address the relation of advertising appeal and intention which may be studied further to determine the empirical finding about the other dynamic of the (TPB.

Social influence in computer-mediated communication : The effects of anonymity on group behavior

NARCIS (Netherlands)

Postmes, T; Spears, R; Sakhel, K; de Groot, D

2001-01-01

Two studies examined hypotheses derived from a Social Identity model of Deindividuation Effects (SIDE) as applied to social influence in computer-mediated communication (CMC) in groups. This model predicts that anonymity can increase social influence if a common group identity is salient. In a first

Suppressive effects of lysozyme on polyphosphate-mediated vascular inflammatory responses

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Chung, Jiwoo [College of Pharmacy, CMRI, Research Institute of Pharmaceutical Sciences, BK21 Plus KNU Multi-Omics Based Creative Drug Research Team, Kyungpook National University, Daegu 41566 (Korea, Republic of); Ku, Sae-Kwang [Department of Anatomy and Histology, College of Korean Medicine, Daegu Haany University, Gyeongsan 38610 (Korea, Republic of); Lee, Suyeon [College of Pharmacy, CMRI, Research Institute of Pharmaceutical Sciences, BK21 Plus KNU Multi-Omics Based Creative Drug Research Team, Kyungpook National University, Daegu 41566 (Korea, Republic of); Bae, Jong-Sup, E-mail: baejs@knu.ac.kr [College of Pharmacy, CMRI, Research Institute of Pharmaceutical Sciences, BK21 Plus KNU Multi-Omics Based Creative Drug Research Team, Kyungpook National University, Daegu 41566 (Korea, Republic of)

2016-06-10

Lysozyme, found in relatively high concentration in blood, saliva, tears, and milk, protects us from the ever-present danger of bacterial infection. Previous studies have reported proinflammatory responses of endothelial cells to the release of polyphosphate(PolyP). In this study, we examined the anti-inflammatory responses and mechanisms of lysozyme and its effects on PolyP-induced septic activities in human umbilical vein endothelial cells (HUVECs) and mice. The survival rates, septic biomarker levels, behavior of human neutrophils, and vascular permeability were determined in PolyP-activated HUVECs and mice. Lysozyme suppressed the PolyP-mediated vascular barrier permeability, upregulation of inflammatory biomarkers, adhesion/migration of leukocytes, and activation and/or production of nuclear factor-κB, tumor necrosis factor-α, and interleukin-6. Furthermore, lysozyme demonstrated protective effects on PolyP-mediated lethal death and the levels of the related septic biomarkers. Therefore, these results indicated the therapeutic potential of lysozyme on various systemic inflammatory diseases, such as sepsis or septic shock. -- Highlights: •PolyP is shown to be an important mediator of vascular inflammation. •Lysozyme inhibited PolyP-mediated hyperpermeability. •Lysozyme inhibited PolyP-mediated septic response. •Lysozyme reduced PolyP-induced septic mortality.

Suppressive effects of lysozyme on polyphosphate-mediated vascular inflammatory responses

International Nuclear Information System (INIS)

Chung, Jiwoo; Ku, Sae-Kwang; Lee, Suyeon; Bae, Jong-Sup

2016-01-01

Lysozyme, found in relatively high concentration in blood, saliva, tears, and milk, protects us from the ever-present danger of bacterial infection. Previous studies have reported proinflammatory responses of endothelial cells to the release of polyphosphate(PolyP). In this study, we examined the anti-inflammatory responses and mechanisms of lysozyme and its effects on PolyP-induced septic activities in human umbilical vein endothelial cells (HUVECs) and mice. The survival rates, septic biomarker levels, behavior of human neutrophils, and vascular permeability were determined in PolyP-activated HUVECs and mice. Lysozyme suppressed the PolyP-mediated vascular barrier permeability, upregulation of inflammatory biomarkers, adhesion/migration of leukocytes, and activation and/or production of nuclear factor-κB, tumor necrosis factor-α, and interleukin-6. Furthermore, lysozyme demonstrated protective effects on PolyP-mediated lethal death and the levels of the related septic biomarkers. Therefore, these results indicated the therapeutic potential of lysozyme on various systemic inflammatory diseases, such as sepsis or septic shock. -- Highlights: •PolyP is shown to be an important mediator of vascular inflammation. •Lysozyme inhibited PolyP-mediated hyperpermeability. •Lysozyme inhibited PolyP-mediated septic response. •Lysozyme reduced PolyP-induced septic mortality.

Behavioral effects of the [beta]-endorphin fragment 2-9

NARCIS (Netherlands)

Ree, J.M. van; Wied, D. de

1982-01-01

The non-opiate β-endorphin (βE) fragment des-Tyr-α-endorphin (βE 2–16) delays extinction of pole jumping avoidance behavior and potentiates apomorphine-induced stereotyped sniffing. Structure-activity relationship studies revealed that the active moiety mediating these psycho-stimulant effects

Child Maltreatment, Impulsivity, and Antisocial Behavior in African-American Children: Moderation Effects from a Cumulative Dopaminergic Gene Index

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Thibodeau, Eric L.; Cicchetti, Dante; Rogosch, Fred A.

2015-01-01

A model examining the effects of an increasing number of maltreatment subtypes experienced on antisocial behavior, as mediated by impulsivity and moderated by a polygenic index of dopaminergic genotypes, was investigated. An African American sample of children (N = 1012, M age = 10.07) with and without maltreatment histories participated. Indicators of aggression, delinquency, and disruptive peer behavior were obtained from peer and counselor rated measures to form a latent variable of antisocial behavior; impulsivity was assessed by counselor report. Five genotypes in four dopaminergic genes (DRD4, DRD2, DAT1, and COMT) conferring heightened environmental sensitivity were combined into one polygenic index. Using SEM, a first-stage, moderated-mediation model was evaluated. Age and sex were entered as covariates, both as main effects and in interaction with maltreatment and the gene index. The model had excellent fit: χ2(32, N =1012) = 86..51, pmaltreatment subtypes on antisocial behavior was partially mediated by impulsivity (β= 0.173, pmaltreatment and impulsivity was stronger as children evinced more differentiating genotypes, thereby strengthening the mediational effect of impulsivity on antisocial behavior. These findings elucidate the manner by which maltreated children develop early signs of antisocial behavior, and the genetic mechanisms involved in greater vulnerability for maladaptation in impulse-control within context of child maltreatment. PMID:26535948

Effects of Active Listening, Reformulation, and Imitation on Mediator Success: Preliminary Results.

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Fischer-Lokou, Jacques; Lamy, Lubomir; Guéguen, Nicolas; Dubarry, Alexandre

2016-06-01

An experiment with 212 students (100 men, 112 women; M age = 18.3 years, SD = 0.9) was carried out to compare the effect of four techniques used by mediators on the number of agreements contracted by negotiators. Under experimental conditions, mediators were asked either to rephrase (reformulate) negotiators' words or to imitate them or to show active listening behavior, or finally, to use a free technique. More agreements were reached in the active listening condition than in both free and rephrase conditions. Furthermore, mediators in the active listening condition were perceived, by the negotiators, as more efficient than mediators using other techniques, although there was no significant difference observed between the active listening and imitation conditions. © The Author(s) 2016.

The Relation between Maternal ADHD Symptoms & Improvement in Child Behavior Following Brief Behavioral Parent Training Is Mediated by Change in Negative Parenting

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Chronis-Tuscano, Andrea; O'Brien, Kelly A.; Johnston, Charlotte; Jones, Heather A.; Clarke, Tana L.; Raggi, Veronica L.; Rooney, Mary E.; Diaz, Yamalis; Pian, Jessica; Seymour, Karen E.

2011-01-01

This study examined the extent to which maternal attention-deficit/hyperactivity disorder (ADHD) symptoms predict improvement in child behavior following brief behavioral parent training. Change in parenting was examined as a potential mediator of the negative relationship between maternal ADHD symptoms and improvement in child behavior. Seventy…

Preparatory Behavior for Condom Use among Heterosexual Young Men: A Longitudinal Mediation Model

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Carvalho, Telma; Alvarez, Maria-João; Barz, Milena; Schwarzer, Ralf

2015-01-01

Objective: Motivation is not sufficient to actually use condoms, as self-regulatory processes are needed to translate motivation into action. Buying condoms and carrying them constitute preparatory behaviors that may serve as proximal predictors of action. Whether or not such preparatory behaviors operate as mediators between intention and action…

Life course socioeconomic position and C-reactive protein: mediating role of health-risk behaviors and metabolic alterations. The Brazilian Longitudinal Study of Adult Health (ELSA-Brasil.

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Lidyane V Camelo

Full Text Available BACKGROUND: Chronic inflammation has been postulated to be one mediating mechanism explaining the association between low socioeconomic position (SEP and cardiovascular disease (CVD. We sought to examine the association between life course SEP and C-reactive protein (CRP levels in adulthood, and to evaluate the extent to which health-risk behaviors and metabolic alterations mediate this association. Additionally, we explored the possible modifying influence of gender. METHODS AND FINDINGS: Our analytical sample comprised 13,371 participants from ELSA-Brasil baseline, a multicenter prospective cohort study of civil servants. SEP during childhood, young adulthood, and adulthood were considered. The potential mediators between life course SEP and CRP included clusters of health-risk behaviors (smoking, low leisure time physical activity, excessive alcohol consumption, and metabolic alterations (obesity, hypertension, low HDL, hypertriglyceridemia, and diabetes. Linear regression models were performed and structural equation modeling was used to evaluate mediation. Although lower childhood SEP was associated with higher levels of CRP in adult life, this association was not independent of adulthood SEP. However, CRP increased linearly with increasing number of unfavorable social circumstances during the life course (p trend <0.001. The metabolic alterations were the most important mediator between cumulative SEP and CRP. This mediation path accounted for 49.5% of the total effect of cumulative SEP on CRP among women, but only 20.2% among men. In consequence, the portion of the total effect of cumulative SEP on CRP that was mediated by risk behaviors and metabolic alterations was higher among women (55.4% than among men (36.8%. CONCLUSIONS: Cumulative SEP across life span was associated with elevated systemic inflammation in adulthood. Although health-risk behaviors and metabolic alterations were important mediators of this association, a sizable

Adverse Childhood Experiences and Suicide Attempts: The Mediating Influence of Personality Development and Problem Behaviors.

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Perez, Nicholas M; Jennings, Wesley G; Piquero, Alex R; Baglivio, Michael T

2016-08-01

Adverse childhood experiences, comprised of forms of maltreatment and certain dysfunctional household environments, can affect the development of a child in a variety of different ways. This multitude of developmental changes may subsequently produce compounding harmful effects on the child's life and increase acutely maladaptive outcomes, including adolescent suicidal behavior. This study uses data collected from 2007 to 2012 for 64,329 Florida Department of Juvenile Justice youth (21.67 % female, 42.88 % African American, and 15.37 % Hispanic) to examine the direct and indirect effects of adverse childhood experiences on suicide attempts. Using a generalized structural equation model, the effects of adverse childhood experience scores are estimated on suicidal behavior through pathways of certain aspects of a child's personality development (aggression and impulsivity), as well as adolescent problem behaviors (school difficulties and substance abuse). The results show that a large proportion of the relationship between childhood adversity and suicide is mediated by the aforementioned individual characteristics, specifically through the youth's maladaptive personality development. These results suggest that, if identified early enough, the developmental issues for these youth could potentially be addressed in order to thwart potential suicidal behavior.

Quality of Life as a Mediator between Behavioral Challenges and Autistic Traits for Adults with Intellectual Disabilities

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Garcia-Villamisar, Domingo; Dattilo, John; Matson, Johnny L.

2013-01-01

A multiple mediation model was proposed to integrate core concepts of challenging behaviors with autistic traits to increase understanding of their relationship to quality of life (QoL). It was hypothesized that QoL is a possible mediator between the severity of challenging behaviors and autistic traits in adults with intellectual disability.…

Tracking Effects of Problematic Social Networking on Adolescent Psychopathology: The Mediating Role of Sleep Disruptions.

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Vernon, Lynette; Modecki, Kathryn L; Barber, Bonnie L

2017-01-01

Concerns are growing about adolescents' problematic social networking and possible links to depressed mood and externalizing behavior. Yet there remains little understanding of underlying processes that may account for these associations, including the mediating role of sleep disruption. This study tests this putative mediating process and examines change in problematic social networking investment and disrupted sleep, in relation to change in depressed mood and externalizing behavior. A sample of 874 students (41% male; 57.2% Caucasian; baseline M age = 14.4 years) from 27 high schools were surveyed. Participants' problematic social networking, sleep disruption, and psychopathology (depressed mood, externalizing behaviors) were measured annually over 3 years. Longitudinal mediation was tested using latent trajectories of problematic social networking use, sleep disruption, and psychopathology. Both problematic social networking and sleep disruption underwent positive linear growth over time. Adolescents who increasingly invested in social networking reported increased depressed mood, with around 53% of this association explained by the indirect effect of increased sleep disruptions. Further, adolescents who increasingly invested in social networking also reported increased externalizing behavior; some of this relation was explained (13%) via increased sleep disruptions. However an alternative model in which increased externalizing was associated with increased social networking, mediated by sleep disruptions, indicated a reciprocal relation of similar magnitude. It is important for parents, teachers, and psychologists to minimize the negative effects of social networking on adolescents' psychopathology. Interventions should potentially target promoting healthy sleep habits through reductions in social networking investment and rescheduling usage away from bedtime.

Trickle-down effects of supervisor perceptions of interactional justice: a moderated mediation approach.

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Ambrose, Maureen L; Schminke, Marshall; Mayer, David M

2013-07-01

Supervisors' perceptions of how fairly they are treated by their own supervisors can influence their subordinates' perceptions, attitudes, and behavior. We present a moderated mediation model that demonstrates how work group structure can enhance or constrain these effects. Results show supervisors' perceptions of the fairness of the interactional treatment they receive relate to their subordinates' perceptions of interactional justice climate, and this relationship is stronger in work groups with more organic structures. Furthermore, consistent with the moderated mediation prediction, interactional justice climate mediates the relationship between supervisors' perceptions of interactional justice and outcomes when work group structures are more organic. We discuss the implications of the findings for research on justice and trickle-down effects. PsycINFO Database Record (c) 2013 APA, all rights reserved.

The Impact of Transformational Leadership on Employee Sustainable Performance: The Mediating Role of Organizational Citizenship Behavior

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Weiping Jiang

2017-09-01

Full Text Available Transformational leadership has drawn extensive attention in management research. In this field, the influence of transformational leadership on employee performance is an important branch. Recent research indicates that organizational citizenship behavior plays a mediating role between transformational leadership and employee performance. However, some of these findings contradict each other. Given the background where greater attention is being paid to transformational leadership in the construction industry, this research aims to find the degree of the influence of transformational leadership on employee sustainable performance, as well as the mediating role of organizational citizenship behavior. A total of 389 questionnaires were collected from contractors and analyzed via structural equation modeling. The findings reveal that employee sustainable performance is positively influenced by transformational leadership. In addition, more than half of that influence is mediated by their organizational citizenship behavior. These findings remind project managers of the need to pay close attention to transformational leadership, to cultivate organizational citizenship behavior, and thereby to eventually improve employee’s sustainable performance.

The mediating role of job involvement in the relationship between job characteristics and organizational citizenship behavior.

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Chen, Chien-Cheng; Chiu, Su-Fen

2009-08-01

Past researchers have found that motivating job characteristics can increase employee display of organizational citizenship behavior (OCB). In this study, the authors extended previous research by investigating the mediating process of job involvement in the relationship between job characteristics and OCB. The authors collected data from 323 employees and their supervisors from 7 companies in Taiwan. Results show that, through the mediating process of job involvement, the 3 job characteristics (i.e., task identity, task significance, and autonomy) positively influenced the display of an employee's OCB, whereas skill variety had a negative effect on OCB. The authors discuss implications of their findings, contributions, limitations, and future research directions.

Adult Romantic Attachment and Couple Conflict Behaviors: Intimacy as a Multi-Dimensional Mediator

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Tina D. Du Rocher Schudlich; Nicole M. Stettler; Kristen A. Stouder; Chelsea Harrington

2013-01-01

This study investigated associations between adult romantic attachment and couples’ conflict behaviors and the potential mediating role of intimacy. A community sample of 74 couples reported on their attachment security style on the Attachment Style Measure (ASM) (Simpson, 1990) and on multiple dimensions of intimacy on the Personal Assessment of Intimacy in Relationships (PAIR) (Schaefer & Olson, 1981). Couples’ conflict behaviors were assessed via behavioral observations and coded for posit...

Interventional effects for mediation analysis with multiple mediators

OpenAIRE

Vansteelandt, Stijn; Daniel, Rhian M.

2017-01-01

The mediation formula for the identification of natural (in)direct effects has facilitated mediation analyses that better respect the nature of the data, with greater consideration of the need for confounding control. The default assumptions on which it relies are strong, however. In particular, they are known to be violated when confounders of the mediator–outcome association are affected by the exposure. This complicates extensions of counterfactual-based mediation analysis to settings that...

Cumulative childhood trauma and psychological maladjustment of sexually abused children in Korea: mediating effects of emotion regulation.

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Choi, Ji Young; Oh, Kyung Ja

2014-02-01

The purpose of the present study was to identify the mediating effects of emotion regulation on the association between cumulative childhood trauma and behavior problems in sexually abused children in Korea, using structural equation modeling (SEM). Data were collected on 171 children (ages 6-13 years) referred to a public counseling center for sexual abuse in Seoul, Korea. Cumulative childhood traumas were defined on the basis of number of traumas (physical abuse, witnessing domestic violence, neglect, traumatic separation from parent, and sexual abuse) and the severity and duration of traumas. Children were evaluated by their parents on emotion regulation using the Emotion Regulation Checklist and internalizing and externalizing behavior problems using the Korean-Child Behavior Checklist. SEM analyses confirmed the complete mediation model, in which emotion dysregulation fully mediates the relationship between cumulative childhood traumas and internalizing/externalizing behavior problems. These findings indicate that emotion regulation is an important mechanism that can explain the negative effects of cumulative childhood traumas and that there is a need to focus on emotion regulation in sexually abused children exposed to cumulative trauma. Copyright © 2013 Elsevier Ltd. All rights reserved.

Behavioral responses associated with a human-mediated predator shelter.

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Graeme Shannon

Full Text Available Human activities in protected areas can affect wildlife populations in a similar manner to predation risk, causing increases in movement and vigilance, shifts in habitat use and changes in group size. Nevertheless, recent evidence indicates that in certain situations ungulate species may actually utilize areas associated with higher levels of human presence as a potential refuge from disturbance-sensitive predators. We now use four-years of behavioral activity budget data collected from pronghorn (Antilocapra americana and elk (Cervus elephus in Grand Teton National Park, USA to test whether predictable patterns of human presence can provide a shelter from predatory risk. Daily behavioral scans were conducted along two parallel sections of road that differed in traffic volume--with the main Teton Park Road experiencing vehicle use that was approximately thirty-fold greater than the River Road. At the busier Teton Park Road, both species of ungulate engaged in higher levels of feeding (27% increase in the proportion of pronghorn feeding and 21% increase for elk, lower levels of alert behavior (18% decrease for pronghorn and 9% decrease for elk and formed smaller groups. These responses are commonly associated with reduced predatory threat. Pronghorn also exhibited a 30% increase in the proportion of individuals moving at the River Road as would be expected under greater exposure to predation risk. Our findings concur with the 'predator shelter hypothesis', suggesting that ungulates in GTNP use human presence as a potential refuge from predation risk, adjusting their behavior accordingly. Human activity has the potential to alter predator-prey interactions and drive trophic-mediated effects that could ultimately impact ecosystem function and biodiversity.

Maternal Depressive Symptomatology and Parenting Behavior: Exploration of Possible Mediators

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Gerdes, Alyson C.; Hoza, Betsy; Arnold, L. Eugene; Pelham, William E.; Swanson, James M.; Wigal, Timothy; Jensen, Peter S.

2007-01-01

Possible mediators of the relation between maternal depressive symptomatology and parenting behavior were examined for 96 children with ADHD and their mothers drawn from the Multimodal Treatment Study of Children with ADHD (MTA) as part of an add-on investigation conducted by two of the six MTA sites. General cognitions (i.e., maternal locus of…

Attachment Style and Obesity: Disordered Eating Behaviors as a Mediator in a Community Sample of Canadian Youth.

Science.gov (United States)

Maras, Danijela; Obeid, Nicole; Flament, Martine; Buchholz, Annick; Henderson, Katherine A; Gick, Mary; Goldfield, Gary S

Obesity and overweight are associated with many negative health outcomes. Attachment style has been implicated in the development of obesity in youth. The present study examined if disordered eating behaviors mediate the relationship between attachment style and body mass index (BMI) in a large community sample of Canadian youth. A total of 3,043 participants (1,254 males and 1,789 females, Mage = 14.20 years) completed self-report questionnaires including the Relationship Questionnaire and the Dutch Eating Behavior Questionnaire, and BMI was objectively measured. Disordered eating behaviors (restrained, emotional, and external) were examined as possible mediating mechanisms in the relationship between attachment style and BMI z-score, using a multiple mediation model using bootstrapping while controlling for socio-demographic covariates. Insecure attachment was significantly associated with higher BMI, and disordered eating mediated this relationship. Restrained eating was the strongest mediator of this pathway. Results suggest that it may be important to take attachment history and restrained eating into account when designing treatment and prevention strategies for obesity in youth.

Mediators of physical activity change in a behavioral modification program for type 2 diabetes patients

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Tudor-Locke Catrine E

2011-09-01

Full Text Available Abstract Background Many studies have reported significant behavioral impact of physical activity interventions. However, few have examined changes in potential mediators of change preceding behavioral changes, resulting in a lack of information concerning how the intervention worked. Our purpose was to examine mediation effects of changes in psychosocial variables on changes in physical activity in type 2 diabetes patients. Methods Ninety-two patients (62 ± 9 years, 30, 0 ± 2.5 kg/m2, 69% males participated in a randomized controlled trial. The 24-week intervention was based on social-cognitive constructs and consisted of a face-to-face session, telephone follow-ups, and the use of a pedometer. Social-cognitive variables and physical activity (device-based and self-reported were collected at baseline, after the 24-week intervention and at one year post-baseline. PA was measured by pedometer, accelerometer and questionnaire. Results Post-intervention physical activity changes were mediated by coping with relapse, changes in social norm, and social modeling from family members (p ≤ 0.05. One-year physical activity changes were mediated by coping with relapse, changes in social support from family and self-efficacy towards physical activity barriers (p ≤ 0.05 Conclusions For patients with type 2 diabetes, initiatives to increase their physical activity could usefully focus on strategies for resuming regular patterns of activity, on engaging family social support and on building confidence about dealing with actual and perceived barriers to activity. Trial Registration NCT00903500, ClinicalTrials.gov.

The virtual midas touch : helping behavior after a mediated social touch

NARCIS (Netherlands)

Haans, A.; IJsselsteijn, W.A.

2009-01-01

A brief touch on the upper arm increases people's altruistic behavior and willingness to comply with a request. In this paper, we investigate whether this Midas touch phenomenon would also occur under mediated conditions (i.e., touching via an arm strap equipped with electromechanical actuators).

Differential effects of ethanol on feline rage and predatory attack behavior: an underlying neural mechanism.

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Schubert, K; Shaikh, M B; Han, Y; Poherecky, L; Siegel, A

1996-08-01

Previous studies have shown that, at certain dose levels, ethanol can exert a powerful, facilitatory effect on aggressive behavior in both animals and humans. In the cat, however, it was discovered that ethanol differentially alters two forms of aggression that are common to this species. Defensive rage behavior is significantly enhanced, whereas predatory attack behavior is suppressed by ethanol administration. One possible mechanism governing alcohol's potentiation of defensive rage behavior is that it acts on the descending pathway from the medial hypothalamus to the midbrain periaqueductal gray (PAG)-an essential pathway for the expression of defensive rage behavior that uses excitatory amino acids as a neurotransmitter. This hypothesis is supported by the finding that the excitatory effects of alcohol on defensive rage behavior are blocked by administration of the N-methyl-D-aspartate antagonist alpha-2-amino-7-phosphoheptanoic acid (AP-7) when microinjected into the periaqueductal gray, a primary neuronal target of descending fibers from the medial hypothalamus that mediate the expression of defensive rage behavior. Thus, the present study establishes for the first time a specific component of the neural circuit for defensive rage behavior over which the potentiating effects of ethanol are mediated.

Mediators of compassionate goal intervention effects on human neuroendocrine responses to the Trier Social Stress Test.

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Erickson, Thane M; Mayer, Stefanie E; Lopez-Duran, Nestor L; Scarsella, Gina M; McGuire, Adam P; Crocker, Jennifer; Abelson, James L

2017-11-01

The hypothalamic-pituitary-adrenal (HPA) axis is thought to mediate the effects of stress on illness. Research has identified a limited number of psychological variables that modulate human HPA responses to stressors (e.g. perceived control and social support). Prosocial goals can reduce subjective stress, but have not been carefully examined in experimental settings where pathways of impact on biological stress markers may be traced. Recent work demonstrated that coaching individuals to strive to help others reduced HPA responses to the Trier Social Stress Test (TSST) relative to other cognitive interventions. However, identification of mediational pathways, which were not examined in the original study, is necessary to determine whether the HPA buffering effects were due to helping motivations (compassionate goals; CGs) rather than via previously identified variables such as control or support. In this new analysis, we combined the original cortisol data with novel observer ratings of interpersonal behavior and psychological variables during the stress task, and conducted new, theory-driven analyses to determine psychological mediators for the intervention's effect on cortisol responses (N = 54; 21 females, 33 males; 486 cortisol samples). Control, support, and task ego-threat failed to account for the effects of the intervention. As hypothesized, self and observer-rated CGs, as well as observer-rated perceptions of participants' interpersonal behavior as morally desirable (but not as dominant or affiliative) were significant mediators of neuroendocrine responses. The findings suggest that stress-reduction interventions based on prosocial behavior should target particular motivational and interpersonal features.

Effects of early maternal distress and parenting on the development of children's self-regulation and externalizing behavior.

Science.gov (United States)

Choe, Daniel Ewon; Olson, Sheryl L; Sameroff, Arnold J

2013-05-01

Emotional distress experienced by mothers increases young children's risk of externalizing problems through suboptimal parenting and child self-regulation. An integrative structural equation model tested hypotheses that mothers' parenting (i.e., low levels of inductive discipline and maternal warmth) would mediate adverse effects of early maternal distress on child effortful control, which in turn would mediate effects of maternal parenting on child externalizing behavior. This longitudinal study spanning ages 3, 6, and 10 included 241 children, mothers, and a subset of teachers. The hypothesized model was partially supported. Elevated maternal distress was associated with less inductive discipline and maternal warmth, which in turn were associated with less effortful control at age 3 but not at age 6. Inductive discipline and maternal warmth mediated adverse effects of maternal distress on children's effortful control. Less effortful control at ages 3 and 6 predicted smaller relative decreases in externalizing behavior at 6 and 10, respectively. Effortful control mediated effects of inductive discipline, but not maternal warmth, on externalizing behavior. Findings suggest elevated maternal distress increases children's risk of externalizing problems by compromising early parenting and child self-regulation.

The effects of poverty on childhood brain development: the mediating effect of caregiving and stressful life events.

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Luby, Joan; Belden, Andy; Botteron, Kelly; Marrus, Natasha; Harms, Michael P; Babb, Casey; Nishino, Tomoyuki; Barch, Deanna

2013-12-01

IMPORTANCE The study provides novel data to inform the mechanisms by which poverty negatively impacts childhood brain development. OBJECTIVE To investigate whether the income-to-needs ratio experienced in early childhood impacts brain development at school age and to explore the mediators of this effect. DESIGN, SETTING, AND PARTICIPANTS This study was conducted at an academic research unit at the Washington University School of Medicine in St Louis. Data from a prospective longitudinal study of emotion development in preschool children who participated in neuroimaging at school age were used to investigate the effects of poverty on brain development. Children were assessed annually for 3 to 6 years prior to the time of a magnetic resonance imaging scan, during which they were evaluated on psychosocial, behavioral, and other developmental dimensions. Preschoolers included in the study were 3 to 6 years of age and were recruited from primary care and day care sites in the St Louis metropolitan area; they were annually assessed behaviorally for 5 to 10 years. Healthy preschoolers and those with clinical symptoms of depression participated in neuroimaging at school age/early adolescence. EXPOSURE Household poverty as measured by the income-to-needs ratio. MAIN OUTCOMES AND MEASURES Brain volumes of children's white matter and cortical gray matter, as well as hippocampus and amygdala volumes, obtained using magnetic resonance imaging. Mediators of interest were caregiver support/hostility measured observationally during the preschool period and stressful life events measured prospectively. RESULTS Poverty was associated with smaller white and cortical gray matter and hippocampal and amygdala volumes. The effects of poverty on hippocampal volume were mediated by caregiving support/hostility on the left and right, as well as stressful life events on the left. CONCLUSIONS AND RELEVANCE The finding that exposure to poverty in early childhood materially impacts brain

Examination of mid-intervention mediating effects on objectively assessed sedentary time among children in the Transform-Us! cluster-randomized controlled trial

NARCIS (Netherlands)

Carson, V.; Salmon, J.; Arundell, L.; Ridgers, N.D.; Cerin, E.; Brown, H.; Hesketh, K.D.; Ball, K.; Chin A Paw, M.J.M.; Yildirim, M.; Daly, R.M.; Dunstan, D.W.; Crawford, D.

2013-01-01

Background: The optimal targets and strategies for effectively reducing sedentary behavior among young people are unknown. Intervention research that explores changes in mediated effects as well as in outcome behaviors is needed to help inform more effective interventions. Therefore, the purpose of

Coparenting Behaviors as Mediators Between Postpartum Parental Depressive Symptoms and Toddler’s Symptoms

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Hervé Tissot

2016-12-01

Full Text Available Postpartum parental depression, even of mild intensity and short duration, has negative consequences on child development, including increased externalizing and internalizing symptoms. Studies revealed that the links between parental depression and child development are mediated by parenting difficulties. On the other hand, the mediating role of problematic family-level relationships, such as low coparenting support and high conflict between the parents, has rarely been considered, although coparenting difficulties have been linked with both increased depressive symptoms in parents and increased symptoms in toddlers. In the present study, we proposed testing a comprehensive mediation model linking parental depression, coparenting, and child symptoms. At 3 months postpartum, a convenience sample of 69 parental couples completed the Edinburgh Postnatal Depression Scale. In addition, we assessed levels of coparenting support and conflict during a mother–father–infant play situation, the Lausanne Trilogue Play. At 18 months postpartum, both parents assessed child symptoms with the Symptom Checklist Questionnaire. The results showed that coparenting support mediated the links between parental depressive symptoms and child symptoms, but only for mothers: Maternal depressive symptoms were linked with lower coparenting support, which in turn predicted increased psychofunctional symptoms and behavior problems assessed by mothers. Although coparenting conflict behaviors were not predicted by parents’ depressive symptoms, higher conflict was unexpectedly linked with fewer behavior problems assessed by both parents. The present study allowed us to unveil complex pathways between mild parental mood disturbances, family-level relationships, and child development in the first months of the child’s life.

Does Homework Behavior Mediate the Relation between Personality and Academic Performance?

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Lubbers, Miranda J.; Van Der Werf, Margaretha P. C.; Kuyper, Hans; Hendriks, A. A. Jolijn

2010-01-01

Past research has consistently shown that there is a relation between personality and academic performance, but much less work has focused on explaining this relation. The present study examined whether three aspects of homework behavior, namely homework time, procrastination, and learning strategies, mediate the relation between personality and…

The mediating effect of organizational culture on the relationship between transformational leadership and organizational citizenship behavior

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Keramat Esmi

2017-10-01

Full Text Available Introduction: Contemporary studies of organizational citizenship behavior (OCB are recognized as essential for modern organizations. These studies indicate that organizations with more emphasis on the OCB are healthier and more successful. The results also show that employees, who act beyond their job duties and exert OCB, belong to high productivity workgroup and enterprise with excellent quality in comparison to employees with low level of OCB. Therefore, the investigation of antecedents of organizational citizenship behavior can help the organizations to improve and reinforce it. Thus, the present study aimed at investigating the mediating effect of organizational culture on the relationship between transformational leadership and OCB. Method: A descriptive correlation research method was employed in this study. A total of 160 experts at Shiraz University were selected as the research sample through simple random sampling method using Cochran’s formula. Moreover, the study employed three instruments, namely Bass and Avolio’s transformational leadership questionnaire, Podsakoff’s et al.’s (1990 organizational citizenship behavior scale, and Denison organizational culture survey (2006. It is noted that the reliability of all the scales was obtained through Cronbach’s alpha coefficient. To analyze the research data, Pearson coefficient and structural equation modeling were used through SPSS 22 and Lisrel 8.8 software. Results: The results indicated that of dimensions of transformational leadership, inspirational motivation (β=0.33, and individualized consideration (β=-0.23 directly influenced OCB. Moreover, these two dimensions indirectly influenced OCB through organizational culture (dimension of involvement. The direct and indirect (β=0.16 effect of inspirational motivation on OCB was positive whereas individualized consideration directly had a negative and indirectly (β=0.14 a positive effect on OCB. Two other dimensions of

Social support from teachers mediates physical activity behavior change in children participating in the Fit-4-Fun intervention.

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Eather, Narelle; Morgan, Philip J; Lubans, David R

2013-05-28

Few studies have examined the mediators of behavior change in successful school-based physical activity interventions. The aim of this study was to explore potential mediators of physical activity in the Fit-4-Fun program for primary school children. Group randomized controlled trial. Four primary schools were recruited in April, 2011 and randomized by school into intervention or control conditions. Participants included 213 children (mean age = 10.7 years ± 0.6; 52.2% female) with the treatment group (n = 118) completing the 8-week multi-component Fit-4-Fun program. Participants were assessed at baseline, 3- and 6-months. Physical activity was measured using Yamax SW700 pedometers (mean steps/day) and questionnaires were used to assess constructs from Social Cognitive Theory and Competence Motivation Theory. Hypothesized mediators measured included social support from peers, parents and teachers; physical activity self-efficacy (barrier and task); enjoyment; and perceived school physical environment. Mediation was assessed using Preacher and Hayes' multiple mediation regression SPSS macro. Action theory (A), conceptual theory (B) and the significance of the product of coefficients (AB) are reported. The intervention had a significant effect on physical activity (pFun program successfully targeted social support for physical activity provided by classroom teachers which contributed to improved physical activity in children. These results demonstrate that classroom teachers play a key role in influencing physical activity behavior outcomes in children.Trial Registration No: ACTRN12611000976987.

Aggression and prosocial behaviors in social conflicts mediating the influence of cold social intelligence and affective empathy on children's social preference.

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Carreras, M R; Braza, P; Muñoz, J M; Braza, F; Azurmendi, A; Pascual-Sagastizabal, E; Cardas, J; Sánchez-Martín, J R

2014-08-01

This study proposes a model in which aggressive and prosocial behaviors exhibited in social conflicts mediate the influence of empathy and social intelligence to children's social preference by same-sex peers. Data were obtained from kindergarten to the end of the first grade. The sample yielded 117 Spanish children (64 girls and 53 boys) with a mean age of 62.8 months (SD = 3.3) at the beginning of the study. For boys, affective empathy contributed to boys' social preference through a decrease in physical aggression as responses to social conflict. For girls, affective empathy had an indirect effect on girls' preference by increasing assistance to others in their conflicts. No mediating effect in the contribution of social intelligence on girls' social preference was detected. Our results suggest that, only for girls, cold social intelligence can promote both indirect aggression (coercive strategic that do not leave social preference, at least at these ages) and behaviors that lead social preference (such as prosocial behaviors). © 2014 Scandinavian Psychological Associations and John Wiley & Sons Ltd.

Glucocorticoids as mediators of developmental programming effects.

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Khulan, Batbayar; Drake, Amanda J

2012-10-01

Epidemiological evidence suggests that exposure to an adverse environment in early life is associated with an increased risk of cardio-metabolic and behavioral disorders in adulthood, a phenomenon termed 'early life programming'. One major hypothesis for early life programming is fetal glucocorticoid overexposure. In animal studies, prenatal glucocorticoid excess as a consequence of maternal stress or through exogenous administration to the mother or fetus is associated with programming effects on cardiovascular and metabolic systems and on the brain. These effects can be transmitted to subsequent generations. Studies in humans provide some evidence that prenatal glucocorticoid exposure may exert similar programming effects on glucose/insulin homeostasis, blood pressure and neurodevelopment. The mechanisms by which glucocorticoids mediate these effects are unclear but may include a role for epigenetic modifications. This review discusses the evidence for glucocorticoid programming in animal models and in humans. Copyright © 2012 Elsevier Ltd. All rights reserved.

Clarifying the Effects of Human Resource Diversity Management Practices on Organizational Citizenship Behavior: The Mediating Role of Diversity Receptiveness

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Ahmad Nizan Mat Noor

2014-06-01

Full Text Available The aim of this study is to scrutinize the impact of employees’ perceptions of their organization’s human resource diversity management (HRDM practices on their organizational citizenship behavior (OCB level. The influence of diversity receptiveness as a mediator in the proposed relationship is also examined. Survey data were gathered from operational employees attached to large hotel in Malaysia. 430 usable questionnaires were used in statistical analyses. The results indicated that the hypothesized linkage between HRDM practices and diversity receptiveness as well as between HRDM practices and OCB were partially supported. The mediating role of diversity receptiveness in the relationship was also partially supported. Implications and limitations of the findings are specified. Finally, directions for future research are suggested.

[Effects decomposition in mediation analysis: a numerical example].

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Zugna, Daniela; Richiardi, Lorenzo

2018-01-01

Mediation analysis aims to decompose the total effect of the exposure on the outcome into a direct effect (unmediated) and an indirect effect (mediated by a mediator). When the interest also lies on understanding whether the exposure effect differs in different sub-groups of study population or under different scenarios, the mediation analysis needs to be integrated with interaction analysis. In this setting it is necessary to decompose the total effect not only into two components, the direct and indirect effects, but other two components linked to interaction. The interaction between the exposure and the mediator in their effect on the outcome could indeed act through the effect of the exposure on the mediator or through the mediator when the mediator is not totally explained by the exposure. We describe options for decomposition, proposed in literature, of the total effect and we illustrate them through a hypothetical example of the effect of age at diagnosis of cancer on survival, mediated and unmediated by the therapeutical approach, and a numerical example.

The Long-Term Impact of High School Civics Curricula on Political Knowledge, Democratic Attitudes and Civic Behaviors: A Multi-Level Model of Direct and Mediated Effects through Communication. CIRCLE Working Paper #65

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Hutchens, Myiah J.; Eveland, William P., Jr.

2009-01-01

This report examines the effects of exposure to various elements of a civics curriculum on civic participation, two forms of political knowledge, internal political efficacy, political cynicism, news elaboration, discussion elaboration and various forms of interpersonal and mediated political communication behaviors. The data are based on a…

How Segregation Makes Us Fat: Food Behaviors and Food Environment as Mediators of the Relationship Between Residential Segregation and Individual Body Mass Index

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Melody Goodman

2018-03-01

Full Text Available ObjectivesRacial residential segregation affects food landscapes that dictate residents’ food environments and is associated with obesity risk factors, including individual dietary patterns and behaviors. We examine if food behaviors and environments mediate the association between segregation and body mass index (BMI.MethodsNon-Hispanic Whites and Blacks living in the St. Louis and Kansas City metro regions from 2012 to 2013 were surveyed on dietary behaviors, food environment, and BMI (n = 1,412. These data were combined with the CDC’s modified retail food environment index and 2012 American Community Survey data to calculate racial segregation using various evenness and exposure indices. Multi-level mediation analyses were conducted to determine if dietary behavior and food environment mediate the association between racial residential segregation and individual BMI.ResultsThe positive association between racial segregation and individual BMI is partially mediated by dietary behaviors and fully mediated by food environments.ConclusionRacial segregation (evenness and exposure is associated with BMI, mediated by dietary behaviors and food environment. Elements of the food environment, which form the context for dietary behaviors, are potential targets for interventions to reduce obesity in residentially segregated areas.

Are socioeconomic disparities in health behavior mediated by differential media use? Test of the communication inequality theory.

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Ishikawa, Yoshiki; Kondo, Naoki; Kawachi, Ichiro; Viswanath, Kasisomayajula

2016-11-01

Communication inequality has been offered as one potential mechanism through which social determinants influence multiple health behaviors. The purpose of this study was to examine the underlying mechanisms between communication inequality and health behaviors. Data from a nationally representative cross-sectional survey of 18,426 people aged 18 years and above in the United States were used for secondary analysis. Measures included socio-demographic characteristics, social participation (structural social capital), health media use (TV, print, and the Internet), and five health behaviors (physical activity, cigarette smoking, alcohol use, and intake of fruit and vegetable). Path analysis was performed to examine the linkages between social determinants, health media use, social participation, and social gradients in health behaviors. Path analysis revealed that socioeconomic gradients in health behaviors is mediated by: 1) inequalities in health media use; 2) disparities in social participation, which leads to differential media use; and 3) disparities in social participation that are not mediated by media use. Consistent with the theory of communication inequality, socioeconomic disparities in media use partially mediate disparities in multiple health behaviors. To address health inequalities, it is important to utilize health media to target populations with low socioeconomic statuses. Copyright © 2016 Elsevier Ireland Ltd. All rights reserved.

Relationships between the Advertising Appeal and Behavioral Intention: The Mediating role of the Attitude towards Advertising Appeal

OpenAIRE

Raza Syed Hassan; Abu Bakar Hassan; Mohamad Bahtiar

2017-01-01

The link between the advertising appeal, attitude and behavioral intention is dynamic in nature, however, little research has been pursued towards explaining the mediating role of attitude towards the advertising in link of the advertising appeal with the behavioral intention. Researchers have identified the importance of the attitude in the connection of the advertising appeal within the framework of the (TPB) which remains unaddressed in the explicating the mediation of the attitude in rela...

Effects of combat deployment on risky and self-destructive behavior among active duty military personnel.

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Thomsen, Cynthia J; Stander, Valerie A; McWhorter, Stephanie K; Rabenhorst, Mandy M; Milner, Joel S

2011-10-01

Although research has documented negative effects of combat deployment on mental health, few studies have examined whether deployment increases risky or self-destructive behavior. The present study addressed this issue. In addition, we examined whether deployment effects on risky behavior varied depending on history of pre-deployment risky behavior, and assessed whether psychiatric conditions mediated effects of deployment on risky behavior. In an anonymous survey, active duty members of the U.S. Marine Corps and U.S. Navy (N = 2116) described their deployment experiences and their participation in risky recreational activities, unprotected sex, illegal drug use, self-injurious behavior, and suicide attempts during three time frames (civilian, military pre-deployment, and military post-deployment). Respondents also reported whether they had problems with depression, anxiety, or PTSD during the same three time frames. Results revealed that risky behavior was much more common in civilian than in military life, with personnel who had not deployed, compared to those who had deployed, reporting more risky behavior and more psychiatric problems as civilians. For the current time period, in contrast, personnel who had deployed (versus never deployed) were significantly more likely to report both risky behavior and psychiatric problems. Importantly, deployment was associated with increases in risky behavior only for personnel with a pre-deployment history of engaging in risky behavior. Although psychiatric conditions were associated with higher levels of risky behavior, psychiatric problems did not mediate associations between deployment and risky behavior. Implications for understanding effects of combat deployment on active duty personnel and directions for future research are discussed. Published by Elsevier Ltd.

Effects of a healthy-eater self-schema and nutrition literacy on healthy-eating behaviors among Taiwanese college students.

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Lee, Chia-Kuei; Liao, Li-Ling; Lai, I-Ju; Chang, Li-Chun

2017-11-14

Unhealthy eating behaviors contribute to obesity and chronic illness. This study examined the relative contributions of a healthy-eater self-schema (a self-conception as a healthy eater) and nutrition literacy on healthy-eating behaviors and whether nutrition literacy was a mediator among Taiwanese college students. A total of 1216 undergraduate students from six universities in Taiwan participated in the study from April to June 2016. Healthy-eating behaviors, nutrition literacy, healthy-eater self-schema and known determinants of eating behaviors (e.g. nutrition-related information, health status, nutrition knowledge needs, sex, year in college and residence) were measured by a self-report questionnaire. A hierarchical multiple regression and mediation analysis were conducted with the known determinants of eating behaviors as covariates. Results showed that a healthy-eater self-schema and nutrition literacy explained 9% and 12% of the variance in healthy-eating behaviors, respectively, and both had unique effects on healthy-eating behaviors. The effect of a healthy-eater self-schema on healthy-eating behaviors was partially mediated through nutrition literacy. Findings suggest that both a healthy-eater self-schema and nutrition literacy should be considered when promoting healthy-eating behaviors. Additionally, nutrition literacy interventions should be tailored to the healthy-eater self-schema status and emphasize the personal relevance of being a healthy-eater to improve the intervention's effectiveness. © The Author 2017. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

Altered Baseline and Nicotine-Mediated Behavioral and Cholinergic Profiles in ChAT-Cre Mouse Lines.

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Chen, Edison; Lallai, Valeria; Sherafat, Yasmine; Grimes, Nickolas P; Pushkin, Anna N; Fowler, J P; Fowler, Christie D

2018-02-28

baseline and/or nicotine-mediated behavioral profiles were discovered in transgenic mice from the ChAT (BAC) -Cre and ChAT (IRES) -Cre lines. Given that these cre-expressing mice have become increasingly used by the scientific community, either independently with chemicogenetic and optogenetic viral vectors or crossed with other transgenic lines, the current studies highlight important considerations for the interpretation of data from previous and future experimental investigations. Moreover, the current findings detail the behavioral effects of either increased or decreased baseline cholinergic signaling mechanisms on locomotor, anxiety, learning/memory, and intravenous nicotine self-administration behaviors. Copyright © 2018 the authors 0270-6474/18/382177-12$15.00/0.

Materialism Moderates the Effect of Accounting for Time on Prosocial Behaviors.

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Li, Jibo; Chen, Yingying; Huang, Xiting

2015-01-01

Accounting for time is defined as putting a price on time. Researchers have demonstrated that accounting for time reduces the time individuals spend on others; however, its association with monetary donations has not been examined. We hypothesized that accounting for time will activate a utility mindset that would affect one's allocation of time and money. In Study 1, the mediating effect of utility mindsets on the relationship between accounting for time and prosocial behavior was examined. In Study 2, we examined the effect of accounting for time on time spent helping and donating money, and the moderating role of material values on the relationship between accounting for time and prosocial behavior. Results showed that accounting for time activated a mindset of utility maximization that, in turn, reduced participants' prosocial behavior; moreover, materialism moderated the effect of accounting for time on prosocial behavior.

Evidence that NMDA-dependent limbic neural plasticity in the right hemisphere mediates pharmacological stressor (FG-7142)-induced lasting increases in anxiety-like behavior: study 3--the effects on amygdala efferent physiology of block of NMDA receptors prior to injection of FG-7142 and its relationship to behavioral change.

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Adamec, R E

1998-01-01

The findings of this study support the hypothesis that N-methyl-D-aspartate (NMDA) receptors mediate the initiation of long-term potentiation (LTP) and behavioral changes induced by the anxiogenic beta-carboline, FG-7142. Unlike previous work, this study examined the effects of FG-7142 on LTP of amygdala efferents in both hemispheres. 7-amino-phosphono-heptanoic acid (AP7), a competitive NMDA receptor blocker, given prior to administration of FG-7142, prevented LTP in amygdala efferent transmission to the medial hypothalamus and periacqueductal gray (PAG). When given FG-7142 alone, cats showed lasting behavioral changes accompanied by LTP in all pathways studied. Duration of LTP, and its relationship to behavioral change, depended on the pathway and the hemisphere of the pathway. Correlation and covariance analyses indicate that LTP in the left amygdalo-ventromedial hypothalamic pathway mediates initiation, but not maintenance, of increased defensiveness. This finding replicates previous work. A new finding is that increased local excitability in the right basal amygdala (reduced threshold for evoked response), and LTP in the right amygdalo-PAG pathway, may be important for maintenance of increases in defensive behavior. Furthermore, the effects of flumazenil, a benzodiazepine receptor antagonist, on behavior and physiology single out the importance of right amygdalo-PAG LTP as a critical mediator of increased defensiveness. Flumazenil reversed the increase in defensiveness produced by FG-7142 in a drug-dependent manner as described in Adamec (1998a). Moreover, flumazenil reversed LTP only in the right amygdalo-PAG pathway. The findings of the present study suggest that response to FG-7142 may be a useful model of the effects of traumatic stressors on limbic system function in anxiety, especially in view of the recent data in humans implicating right hemispheric function in persisting negative affective states.

Callous-Unemotional Traits and Effortful Control Mediate the Effect of Parenting Intervention on Preschool Conduct Problems.

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Elizur, Yoel; Somech, Lior Y

2018-02-24

Parenting intervention (PI) is an effective treatment for children's conduct problems (CP) that has been shown to be mediated by improved parenting practices and parenting self-efficacy. Recently, Hitkashrut's randomized controlled trial demonstrated that ineffective parenting (IP) mediated effects on callous-unemotional (CU) traits and effortful control (EC), while controlling for more general treatment effects on CP. These temperament and personality-based features predict the formation of early-onset antisocial trajectories with poor long-term prognosis. The objective of this study was to use Hitkashrut's 3-wave dataset to test posttreatment EC and CU mediation of treatment effect on 1-year follow-up CP, and to determine whether mediation by each child-level potential mediator remains significant when tested concurrently with the parenting mediator. Parents of 209 3-5 year-old preschoolers (163 boys; 46 girls), with subclinical-clinical range CP were assigned to 14-session co-parent training groups (n = 140 couples), or to minimal intervention control groups (n = 69 couples). Assessments were based on both parents' questionnaires. An intent-to-treat analysis showed that EC and CU traits simultaneously mediated treatment effects on CP in one EC/CU mediational model. The concurrent testing of child- and parent-level mediators showed mediation by IP and CU traits in the CU/IP model, and IP mediation in the EC/IP model. Similar results were obtained in mediational analyses that controlled for the shared variance between the mediators and CP at T2. Overall, the findings support an intervention model of coaching parents of high-CP children to promote moral self-regulatory competencies while concurrently applying behavioral methods that directly target CP.

The Effect of Perceiving a Calling on Pakistani Nurses' Organizational Commitment, Organizational Citizenship Behavior, and Job Stress.

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Afsar, Bilal; Shahjehan, Asad; Cheema, Sadia; Javed, Farheen

2018-03-01

People differ considerably in the way in which they express and experience their nursing careers. The positive effects associated with having a calling may differ substantially based on individuals' abilities to live out their callings. In a working world where many individuals have little to no choice in their type of employment and thus are unable to live out a calling even if they have one, the current study examined how perceiving a calling and living a calling interacted to predict organizational commitment, organizational citizenship behavior, and job stress with career commitment mediating the effect of the interactions on the three outcome variables. The purpose of the study is to investigate the mediating effect of career commitment between the relationships of calling and (a) nurses' attitudes (organizational commitment), (b) behaviors (organizational citizenship behavior), and (c) subjective experiences regarding work (job stress). Using a descriptive exploratory design, data were collected from 332 registered nurses working in Pakistani hospitals. Descriptive analysis and hierarchical regression analysis were used for data analysis. Living a calling moderated the effect of calling on career commitment, organizational citizenship behavior, and job stress, and career commitment fully mediated the effect of calling on organizational commitment, organizational citizenship behavior, and job stress. Increasing the understanding of calling, living a calling, and career commitment may increase nurses' organizational commitment and organizational citizenship behavior and decrease job stress. The study provided evidence to help nursing managers and health policy makers integrate knowledge and skills related to calling into career interventions and help nurses discover their calling.

Serotonergic mediation of the effects of fluoxetine, but not desipramine, in the rat forced swimming test.

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Page, M E; Detke, M J; Dalvi, A; Kirby, L G; Lucki, I

1999-11-01

The forced swimming test (FST) is a behavioral test in rodents that predicts the clinical efficacy of many types of antidepressant treatments. Recently, a behavior sampling technique was developed that scores individual response categories, including swimming, climbing and immobility. Although all antidepressant drugs reduce immobility in the FST, at least two distinct active behavioral patterns are produced by pharmacologically selective antidepressant drugs. Serotonin-selective reuptake inhibitors increase swimming behavior, while drugs acting primarily to increase extracellular levels of norepinephrine or dopamine increase climbing behavior. Distinct patterns of active behaviors in the FST may be mediated by distinct neurotransmitters, but this has not been shown directly. The present study examined the role of serotonin in mediating active behaviors in the forced swimming test after treatment with two antidepressant drugs, the selective serotonin reuptake inhibitor, fluoxetine and the selective norepinephrine reuptake inhibitor, desipramine. Endogenous serotonin was depleted by administering para-cholorophenylalanine (PCPA, 150 mg/kg, IP.) to rats 72 h and 48 h prior to the swim test. Fluoxetine (10 mg/kg, SC) or desipramine (10 mg/kg, SC) was given three times over a 24-h period prior to the FST. Behavioral responses, including immobility, swimming and climbing, were counted during the 5-min test. Pretreatment with PCPA blocked fluoxetine-induced reduction in immobility and increase in swimming behavior during the FST. In contrast, PCPA pretreatment did not interfere with the ability of desipramine to reduce immobility and increase climbing behavior. Depletion of serotonin prevented the behavioral effects of the selective serotonin reuptake inhibitor fluoxetine in the rat FST. Furthermore, depletion of serotonin had no impact on the behavioral effects induced by the selective norepinephrine reuptake inhibitor, desipramine. The effects of antidepressant drugs

Excessive Time on Social Networking Sites and Disordered Eating Behaviors Among Undergraduate Students: Appearance and Weight Esteem as Mediating Pathways.

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Murray, Marisa; Maras, Danijela; Goldfield, Gary S

2016-12-01

Social networking sites (SNS) are a popular form of communication among undergraduate students. Body image concerns and disordered eating behaviors are also quite prevalent among this population. Maladaptive use of SNS has been associated with disordered eating behaviors; however, the mechanisms remain unclear. The present study examined if body image concerns (e.g., appearance and weight esteem) mediate the relationship between excessive time spent on SNS and disordered eating behaviors (restrained and emotional eating). The sample included 383 (70.2 percent female) undergraduate students (mean age = 23.08 years, standard deviation = 3.09) who completed self-report questionnaires related to SNS engagement, body image, disordered eating behaviors, and demographics. Parallel multiple mediation and moderated mediation analyses revealed that lower weight and appearance esteem mediated the relationship between excessive time on SNS and restrained eating for males and females, whereas appearance esteem mediated the relationship between excessive time on SNS and emotional eating for females only. The study adds to the literature by highlighting mediational pathways and gender differences. Intervention research is needed to determine if teaching undergraduate students more adaptive ways of using SNS or reducing exposure to SNS reduces body dissatisfaction and disordered eating in this high-risk population.

Examining the effects of turnover intentions on organizational citizenship behaviors and deviance behaviors: A psychological contract approach.

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Mai, Ke Michael; Ellis, Aleksander P J; Christian, Jessica Siegel; Porter, Christopher O L H

2016-08-01

Although turnover intentions are considered the most proximal antecedent of organizational exit, there is often temporal separation between thinking about leaving and actual exit. Using field data from 2 diverse samples of working adults, we explore a causal model of the effects of turnover intentions on employee behavior while they remain with the organization, focusing specifically on organizational citizenship behaviors (OCBs) and deviance behaviors (DBs). Utilizing expectancy theory as an explanatory framework, we argue that turnover intentions result in high levels of transactional contract orientation and low levels of relational contract orientation, which in turn lead to a decrease in the incidence of OCBs and an increase in the incidence of DBs. We first used a pilot study to investigate the direction of causality between turnover intentions and psychological contract orientations. Then, in Study 1, we tested our mediated model using a sample of employees from a large drug retailing chain. In Study 2, we expanded our model by arguing that the mediated effects are much stronger when the organization is deemed responsible for potential exit. We then tested our full model using a sample of employees from a large state-owned telecommunications corporation in China. Across both studies, results were generally consistent and supportive of our hypotheses. We discuss the implications of our findings for future theory, research, and practice regarding the management of both the turnover process and discretionary behaviors at work. (PsycINFO Database Record (c) 2016 APA, all rights reserved).

Social anxiety and alcohol-related negative consequences among college drinkers: do protective behavioral strategies mediate the association?

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Villarosa, Margo C; Moorer, Kayla D; Madson, Michael B; Zeigler-Hill, Virgil; Noble, Jeremy J

2014-09-01

The link between social anxiety and alcohol-related negative consequences among college students has been well documented. Protective behavioral strategies are cognitive-behavioral strategies that college students use in an effort to reduce harm while they are drinking. In the current study we examined the mediating role of the 2 categories of protective behavioral strategies (i.e., controlled consumption and serious harm reduction) in the relationship that social anxiety symptoms have with alcohol-related negative consequences. Participants were 572 undergraduates who completed measures of social anxiety, alcohol use, negative consequences of alcohol use, and protective behavioral strategy use. Only serious harm reduction strategies emerged as a mediator of the association that social anxiety symptoms had with alcohol-related negative consequences. Clinical and research implications are discussed.

The Effects of Moral Identity on Moral Emotion and Antisocial Behavior in Sport

OpenAIRE

Kavussanu, M; Stanger, N; Ring, C

2015-01-01

Given the prevalence and significance of antisocial behavior in sport, researchers have begun to explore the role that self conscious moral emotions play in reducing such behavior. In this research, we examined whether moral identity inhibits antisocial behaviour and whether these effects are mediated by anticipated guilt. Using a cross-sectional design, Study 1 showed that moral identity was negatively related to antisocial behavior. Study 2 found that the negative association between moral ...

Child Effortful Control as a Mediator of Parenting Practices on Externalizing Behavior: Evidence for a Sex-Differentiated Pathway across the Transition from Preschool to School

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Chang, Hyein; Olson, Sheryl L.; Sameroff, Arnold J.; Sexton, Holly R.

2011-01-01

An explanatory model for children's development of disruptive behavior across the transition from preschool to school was tested. It was hypothesized that child effortful control would mediate the effects of parenting on children's externalizing behavior and that child sex would moderate these relations. Participants were 241 children (123 boys)…

Humble Leadership Behavior and Employee Individual Innovation Behavior:A Mediated Moderation Model%谦卑领导行为与员工个人创新行为:一个被中介的调节模型

Institute of Scientific and Technical Information of China (English)

苏涛永; 张瑞; 俞梦琦; 王胜金

2017-01-01

通过问卷调查我国长三角地区3家企业的326名员工,从组织行为学、心理学视角,构建了一个被中介的调节模型,以探讨谦卑领导行为与员工个人创新行为的关系.实证结果表明:谦卑领导行为对员工个人创新行为有显著的正向影响,内部人身份认知在其中起到部分中介作用;传统性对谦卑领导行为与个人创新行为之间的关系具有调节作用,该调节作用通过内部人身份认知的中介得以实现.揭示了谦卑领导行为对员工个人创新行为的影响效应和作用路径,充实了谦卑领导行为对下属影响的相关研究,为实践中从领导层面促进组织创新提供了有益借鉴.%A mediated moderation model was built to analyze the relationship between humble leadership behavior and employee individual innovation behavior based on organizational behavior theory and psychology perspective.The mediating role of perceived insider status and moderating role of traditionality between humble leadership behavior and employee individual innovation behavior were hypothesized.The empirical test of data from 326 employees from 3 enterprises in Yangtze River Delta region in China shows that humble leadership behavior has a positive impact on individual innovation behavior.It also indicates that perceived insider status partly mediates the relationship between humble leadership behavior and employee individual innovation behavior.Traditionality moderates the relationship between humble leadership behavior and employee individual innovation behavior.Perceived insider status fully mediates the moderating effect of traditionality.These results reveal the effect of humble leadership behavior on employee individual innovation behavior and its mechanism,enrich the research results of the influence of humble leadership behavior on subordinates,and has important reference significance for the promotion of organizational innovation from the leadership level.

Self-efficacy mediates the relationship between behavioral processes of change and physical activity in older breast cancer survivors.

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Loprinzi, Paul D; Cardinal, Bradley J

2013-01-01

The degree to which breast cancer survivors use behavioral processes of change has not been investigated. Additionally, the relationship between behavioral processes and other theory-based mediators of adult physical activity behavior has not been extensively studied among breast cancer survivors. The objectives of this study were to: (1) determine the extent to which breast cancer survivors use behavioral processes associated with physical activity behavior change, and (2) examine the inter-relationships between behavioral processes, self-efficacy, and physical activity behavior among breast cancer survivors. Sixty-nine breast cancer survivors completed surveys examining behavioral processes and exercise-specific self-efficacy. Six months later they completed a self-report physical activity questionnaire. Findings showed the majority of breast cancer survivors did not use approximately half of the behavioral processes on a regular basis, and self-efficacy completely mediated the relationship between behavioral processes and physical activity. Health care professionals may help enhance self-efficacy and ultimately increase physical activity behavior in breast cancer survivors by teaching behavior skills such as enlisting social support.

The relation between maternal ADHD symptoms & improvement in child behavior following brief behavioral parent training is mediated by change in negative parenting.

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Chronis-Tuscano, Andrea; O'Brien, Kelly A; Johnston, Charlotte; Jones, Heather A; Clarke, Tana L; Raggi, Veronica L; Rooney, Mary E; Diaz, Yamalis; Pian, Jessica; Seymour, Karen E

2011-10-01

This study examined the extent to which maternal attention-deficit/hyperactivity disorder (ADHD) symptoms predict improvement in child behavior following brief behavioral parent training. Change in parenting was examined as a potential mediator of the negative relationship between maternal ADHD symptoms and improvement in child behavior. Seventy mothers of 6-10 year old children with ADHD underwent a comprehensive assessment of adult ADHD prior to participating in an abbreviated parent training program. Before and after treatment, parenting was assessed via maternal reports and observations and child disruptive behavior was measured via maternal report. Controlling for pre-treatment levels, maternal ADHD symptomatology predicted post-treatment child disruptive behavior problems. The relation between maternal ADHD symptomatology and improvement in child behavior was mediated by change in observed maternal negative parenting. This study replicated findings linking maternal ADHD symptoms with attenuated child improvement following parent training, and is the first to demonstrate that negative parenting at least partially explains this relationship. Innovative approaches combining evidence-based treatment for adult ADHD with parent training may therefore be necessary for families in which both the mother and child have ADHD. Larger-scale studies using a full evidence-based parent training program are needed to replicate these findings.

Effects of habitual anger on employees' behavior during organizational change.

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Bönigk, Mareike; Steffgen, Georges

2013-11-25

Organizational change is a particularly emotional event for those being confronted with it. Anger is a frequently experienced emotion under these conditions. This study analyses the influence of employees' habitual anger reactions on their reported behavior during organizational change. It was explored whether anger reactions conducive to recovering or increasing individual well-being will enhance the likelihood of functional change behavior. Dysfunctional regulation strategies in terms of individual well-being are expected to decrease the likelihood of functional change behavior-mediated by the commitment to change. Four hundred and twelve employees of different organizations in Luxembourg undergoing organizational change participated in the study. Findings indicate that the anger regulation strategy venting, and humor increase the likelihood of deviant resistance to change. Downplaying the incident's negative impact and feedback increase the likelihood of active support for change. The mediating effect of commitment to change has been found for humor and submission. The empirical findings suggest that a differentiated conceptualization of resistance to change is required. Specific implications for practical change management and for future research are discussed.

Psychological Empowerment as a Mediator between Teachers' Perceptions of Authentic Leadership and Their Withdrawal and Citizenship Behaviors

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Shapira-Lishchinsky, Orly; Tsemach, Sigalit

2014-01-01

Purpose: This study explores the mediating role of psychological empowerment on authentic leadership, organizational citizenship behaviors (OCB), and a variety of withdrawal behaviors among teachers, using the psychological model of perceptions-attitudes-behaviors. Research Design: A total of 366 teachers from 23 randomly selected Israeli schools…

Catalytic conversion reactions mediated by single-file diffusion in linear nanopores: hydrodynamic versus stochastic behavior.

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Ackerman, David M; Wang, Jing; Wendel, Joseph H; Liu, Da-Jiang; Pruski, Marek; Evans, James W

2011-03-21

We analyze the spatiotemporal behavior of species concentrations in a diffusion-mediated conversion reaction which occurs at catalytic sites within linear pores of nanometer diameter. Diffusion within the pores is subject to a strict single-file (no passing) constraint. Both transient and steady-state behavior is precisely characterized by kinetic Monte Carlo simulations of a spatially discrete lattice-gas model for this reaction-diffusion process considering various distributions of catalytic sites. Exact hierarchical master equations can also be developed for this model. Their analysis, after application of mean-field type truncation approximations, produces discrete reaction-diffusion type equations (mf-RDE). For slowly varying concentrations, we further develop coarse-grained continuum hydrodynamic reaction-diffusion equations (h-RDE) incorporating a precise treatment of single-file diffusion in this multispecies system. The h-RDE successfully describe nontrivial aspects of transient behavior, in contrast to the mf-RDE, and also correctly capture unreactive steady-state behavior in the pore interior. However, steady-state reactivity, which is localized near the pore ends when those regions are catalytic, is controlled by fluctuations not incorporated into the hydrodynamic treatment. The mf-RDE partly capture these fluctuation effects, but cannot describe scaling behavior of the reactivity.

Client interpersonal impacts as mediators of long-term outcome in cognitive-behavioral therapy integrated with motivational interviewing for generalized anxiety disorder.

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Constantino, Michael J; Romano, Felicia M; Coyne, Alice E; Westra, Henny A; Antony, Martin M

2017-03-24

A recent trial of generalized anxiety disorder treatment (Westra, H. A., Constantino, M. J., & Antony, M. M. (2016). Integrating Motivational Interviewing With Cognitive-Behavioral Therapy for Severe Generalized Anxiety Disorder: An Allegiance-Controlled Randomized Clinical Trial. Journal of Consulting and Clinical Psychology, 84, 768-782. doi: 10.1037/ccp0000098 ) revealed that cognitive-behavioral therapy (CBT) integrated with motivational interviewing (MI) outperformed CBT alone across a 12-month follow up. The present study examined whether this treatment effect was mediated by MI-CBT clients engaging over time in during-session interpersonal behaviors reflecting more friendly dominance, or agentic actions, and less friendly submissiveness (FS), or trustingly compliant actions both theory-specific MI mechanisms. Clients received 15 sessions of MI-CBT (n = 42) or CBT alone (n = 43). Therapists rated client interpersonal behavior following five sessions, and clients rated their worry at baseline, each session, and 6- and 12-month follow up. Mediator and outcome variables were derived from multilevel models. Mediation was tested using a bootstrapping procedure. There was a significant indirect effect for FS. As expected, CBT clients evidenced greater increases in FS than MI-CBT clients, which in turn, though unexpectedly, related to lower 12-month worry. However, long-term CBT outcomes remained inferior to MI-CBT outcomes even with CBT clients'greater increase in FS. Results suggest that CBT outcomes are more positive when clients trustingly comply; however, MI-CBT remained superior, but for as yet unexplained reasons. Clinical or methodological significance of this article: The findings highlight the clinical importance of GAD clients becoming more friendly dominant in the therapy relationship irrespective of whether they received CBT or integrative MI-CBT. Moreover, it seems clinically indicated to incorporate MI spirit and techniques into CBT when

Hyperoxia-triggered aversion behavior in Drosophila foraging larvae is mediated by sensory detection of hydrogen peroxide.

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Kim, Myung Jun; Ainsley, Joshua A; Carder, Justin W; Johnson, Wayne A

2013-12-01

Reactive oxygen species (ROS) in excess have been implicated in numerous chronic illnesses, including asthma, diabetes, aging, cardiovascular disease, and neurodegenerative illness. However, at lower concentrations, ROS can also serve essential routine functions as part of cellular signal transduction pathways. As products of atmospheric oxygen, ROS-mediated signals can function to coordinate external environmental conditions with growth and development. A central challenge has been a mechanistic distinction between the toxic effects of oxidative stress and endogenous ROS functions occurring at much lower concentrations. Drosophila larval aerotactic behavioral assays revealed strong developmentally regulated aversion to mild hyperoxia mediated by H2O2-dependent activation of class IV multidendritic (mdIV) sensory neurons expressing the Degenerin/epithelial Na(+) channel subunit, Pickpocket1 (PPK1). Electrophysiological recordings in foraging-stage larvae (78-84 h after egg laying [AEL]) demonstrated PPK1-dependent activation of mdIV neurons by nanomolar levels of H2O2 well below levels normally associated with oxidative stress. Acute sensitivity was reduced > 100-fold during the larval developmental transition to wandering stage (> 96 h AEL), corresponding to a loss of hyperoxia aversion behavior during the same period. Degradation of endogenous H2O2 by transgenic overexpression of catalase in larval epidermis caused a suppression of hyperoxia aversion behavior. Conversely, disruption of endogenous catalase activity using a UAS-CatRNAi transposon resulted in an enhanced hyperoxia-aversive response. These results demonstrate an essential role for low-level endogenous H2O2 as an environment-derived signal coordinating developmental behavioral transitions.

Mediating Mechanisms of Theory-Based Psychosocial Determinants on Behavioral Changes in a Middle School Obesity Risk Reduction Curriculum Intervention, Choice, Control, and Change.

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Gray, Heewon Lee; Contento, Isobel R; Koch, Pamela A; Noia, Jennifer Di

2016-10-01

A limited number of school-based intervention studies have explored mediating mechanisms of theory-based psychosocial variables on obesity risk behavior changes. The current study investigated how theory-based psychosocial determinants mediated changes in energy balance-related behaviors (EBRBs) among urban youth. A secondary analysis study was conducted using data from a cluster randomized controlled trial. Data from students at 10 middle schools in New York City (n = 1136) were used. The intervention, Choice, Control, and Change curriculum, was based on social cognitive and self-determination theories. Theory-based psychosocial determinants (goal intention, cognitive outcome expectations, affective outcome expectations, self-efficacy, perceived barriers, and autonomous motivation) and EBRBs were measured with self-report questionnaires. Mediation mechanisms were examined using structural equation modeling, Results: Mediating mechanisms for daily sugar-sweetened beverage (SSB) consumption and purposeful stair climbing were identified. Models with best fit indices (root mean square error of approximation = 0.039/0.045, normed fit index = 0.916/0.882; comparative fit index = 0.945/0.932; Tucker-Lewis index = 0.896/0.882, respectively) suggested that goal intention and reduced perceived barriers were significant proximal mediators for reducing SSB consumption among both boys and girls or increasing physical activity by stair climbing among boys. Cognitive outcome expectations, affective outcome expectations, self-efficacy, and autonomous motivation indirectly mediated behavioral changes through goal intention or perceived barriers (p behavioral outcome variances. Theory-based psychosocial determinants targeted in Choice, Control, and Change in fact mediated behavior changes in middle school students. Strategies targeting these mediators might benefit future success of behavioral interventions. Further studies are needed to determine other

Testing theories of dietary behavior change in youth using the mediating variable model with intervention programs

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Our purpose was to review and critique current experimentally based evidence of theoretical mechanisms of dietary behavior change in youth, and provide recommendations on ways to enhance theory evaluation. Interventions that examined mediators of dietary behavior change in youth (age 5-18 years) wer...

Exploring the relationship between socioeconomic status, control beliefs and exercise behavior: a multiple mediator model.

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Murray, Terra C; Rodgers, Wendy M; Fraser, Shawn N

2012-02-01

The purpose of this study was to examine the relationship between control beliefs, socioeconomic status and exercise intentions and behavior. Specifically, we examined whether distal and proximal control beliefs mediated the association between socioeconomic status and exercise intentions and behavior. A one time, cross sectional mail out survey (N = 350) was conducted in a large urban Canadian city. Distal (i.e., personal constraints) and proximal (i.e., scheduling self-efficacy) control beliefs mediated the association between socioeconomic status and exercise, explaining approximately 30% of the variance. Proximal control beliefs (i.e., scheduling self-efficacy) partially mediated the association between socioeconomic status and intentions, with the models explaining approximately 50% of the variance. Compared to individuals with lower socioeconomic status, individuals with higher socioeconomic status reported more exercise and stronger intentions to exercise. This was at least partly because higher socioeconomic status respondents reported fewer barriers in their lives, and were more confident to cope with the scheduling demands of exercise.

Sleep-Related Safety Behaviors and Dysfunctional Beliefs Mediate the Efficacy of Online CBT for Insomnia: A Randomized Controlled Trial.

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Lancee, Jaap; Eisma, Maarten C; van Straten, Annemieke; Kamphuis, Jan H

2015-01-01

Several trials have demonstrated the efficacy of online cognitive behavioral therapy (CBT) for insomnia. However, few studies have examined putative mechanisms of change based on the cognitive model of insomnia. Identification of modifiable mechanisms by which the treatment works may guide efforts to further improve the efficacy of insomnia treatment. The current study therefore has two aims: (1) to replicate the finding that online CBT is effective for insomnia and (2) to test putative mechanism of change (i.e., safety behaviors and dysfunctional beliefs). Accordingly, we conducted a randomized controlled trial in which individuals with insomnia were randomized to either online CBT for insomnia (n = 36) or a waiting-list control group (n = 27). Baseline and posttest assessments included questionnaires assessing insomnia severity, safety behaviors, dysfunctional beliefs, anxiety and depression, and a sleep diary. Three- and six-month assessments were administered to the CBT group only. Results show moderate to large statistically significant effects of the online treatment compared to the waiting list on insomnia severity, sleep measures, sleep safety behaviors, and dysfunctional beliefs. Furthermore, dysfunctional beliefs and safety behaviors mediated the effects of treatment on insomnia severity and sleep efficiency. Together, these findings corroborate the efficacy of online CBT for insomnia, and suggest that these effects were produced by changing maladaptive beliefs, as well as safety behaviors. Treatment protocols for insomnia may specifically be enhanced by more focused attention on the comprehensive fading of sleep safety behaviors, for instance through behavioral experiments.

Children's Exposure to Violence: The Underlying Effect of Posttraumatic Stress Symptoms on Behavior Problems.

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Yoon, Susan; Steigerwald, Stacey; Holmes, Megan R; Perzynski, Adam T

2016-02-01

In this study we investigated whether witnessing violence and violence victimization were associated with children's internalizing and externalizing behavior problems and examined the mediating role of posttraumatic stress (PTS) symptoms in these relationships. Secondary data analysis was conducted using 3 waves of data from the National Survey of Child and Adolescent Well-Being. Path analyses were conducted to test direct and indirect effects of violence exposure on behavior problems, using 2,064 children (ages 8-15 years) reported to Child Protective Services for maltreatment. Being a victim of violence in the home was directly associated with more internalizing (β = .06, p = .007) and externalizing behavior problems (β = .07, p = .002), whereas witnessing violence was not directly related to either internalizing (β = .04, p = .056) or externalizing behavior problems (β = .03, p = .130). PTS symptoms mediated the effects of witnessing violence and violence victimization on internalizing behavior problems (β = .02, p = .002). Our findings suggest that PTS symptoms may be a mechanism underlying the association between violence exposure and internalizing behavior problems (R(2) = .23), underscoring the potential importance of assessing PTS symptoms and providing targeted trauma-focused interventions for children exposed to violence at home. Copyright © 2016 International Society for Traumatic Stress Studies.

Determinants of lifestyle behavior change to prevent type 2 diabetes in high-risk individuals.

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den Braver, N R; de Vet, E; Duijzer, G; Ter Beek, J; Jansen, S C; Hiddink, G J; Feskens, E J M; Haveman-Nies, A

2017-06-12

Although there are many effective lifestyle interventions for type 2 diabetes (T2DM) prevention, insight into effective intervention pathways, especially of long-term interventions, is often lacking. This study aims to provide insight into the effective intervention pathways of the SLIMMER diabetes prevention intervention using mediation analyses. In total, 240 participants at increased risk of T2DM were included in the analyses over 18 months. The intervention was a combined lifestyle intervention with a dietary and a physical activity (PA) component. The primary and secondary outcomes were change in fasting insulin (pmol/L) and change in body weight (kg) after 18 months, respectively. Firstly, in a multiple mediator model, we investigated whether significant changes in these outcomes were mediated by changes in dietary and PA behavior. Secondly, in multiple single mediator models, we investigated whether changes in dietary and PA behavior were mediated by changes in behavioral determinants and the participants' psychological profile. The mediation analyses used linear regression models, where significance of indirect effects was calculated with bootstrapping. The effect of the intervention on decreased fasting insulin was 40% mediated by change in dietary and PA behavior, where dietary behavior was an independent mediator of the association (34%). The effect of the intervention on decreased body weight was 20% mediated by change in dietary and PA behavior, where PA behavior was an independent mediator (17%). The intervention significantly changed intake of fruit, fat from bread spread, and fiber from bread. Change in fruit intake was mediated by change in action control (combination of consciousness, self-control, and effort), motivation, self-efficacy, intention, and skills. Change in fat intake was mediated by change in action control and psychological profile. No mediators could be identified for change in fiber intake. The change in PA behavior was mediated

High Performance Work System and Organizational Citizenship Behavior in Multinational Companies in Vietnam: the Mediation Effect of Career Success

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Giang Thi Huong Vu

2018-05-01

Full Text Available In this study, the relationship between high performance work system (HPWS and organizational citizenship behavior (OCB in multinational corporations (MNCs in Vietnam, a fast-developing country with highly economic growth in Asia, was investigated. Besides, the underlying mechanism of this relationship was also explored. From the social exchange approach, an underlying mediated mechanism of career success in the relationship between HPWS and OCB was hypothesized. Data collected from individual employees working in multinational companies in Vietnam was used to test the hypotheses. The research findings supported the partial mediating role of career success in the positive relationship between HPWS and OCB. In addition, research implications as well as suggestions for future research were also presented.   Bahasa Indonesia Abstrak: Dalam studi ini, hubungan antara high performance work system (HPWS dan organizational citizenship behavior (OCB di multinational corporations (MNC di Vietnam, negara cepat berkembang dengan pertumbuhan ekonomi yang sangat tinggi di Asia, ditelliti. Selain itu, mekanisme yang mendasari hubungan ini juga dieksplorasi. Dari pendekatan pertukaran sosial, mekanisme mediasi yang dimediasi dari kesuksesan karir dalam hubungan antara HPWS dan OCB dihipotesiskan. Data yang dikumpulkan dari masing-masing karyawan yang bekerja di perusahaan multinasional di Vietnam digunakan untuk menguji hipotesis. Temuan penelitian mendukung peran mediasi parsial dari kesuksesan karir dalam hubungan positif antara HPWS dan OCB. Selain itu, implikasi penelitian serta saran untuk penelitian masa depan juga disajikan.

Combinatorial effects of odorants on mouse behavior

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Saraiva, Luis R.; Kondoh, Kunio; Ye, Xiaolan; Yoon, Kyoung-hye; Hernandez, Marcus; Buck, Linda B.

2016-01-01

The mechanisms by which odors induce instinctive behaviors are largely unknown. Odor detection in the mouse nose is mediated by >1, 000 different odorant receptors (ORs) and trace amine-associated receptors (TAARs). Odor perceptions are encoded combinatorially by ORs and can be altered by slight changes in the combination of activated receptors. However, the stereotyped nature of instinctive odor responses suggests the involvement of specific receptors and genetically programmed neural circuits relatively immune to extraneous odor stimuli and receptor inputs. Here, we report that, contrary to expectation, innate odor-induced behaviors can be context-dependent. First, different ligands for a given TAAR can vary in behavioral effect. Second, when combined, some attractive and aversive odorants neutralize one another’s behavioral effects. Both a TAAR ligand and a common odorant block aversion to a predator odor, indicating that this ability is not unique to TAARs and can extend to an aversive response of potential importance to survival. In vitro testing of single receptors with binary odorant mixtures indicates that behavioral blocking can occur without receptor antagonism in the nose. Moreover, genetic ablation of a single receptor prevents its cognate ligand from blocking predator odor aversion, indicating that the blocking requires sensory input from the receptor. Together, these findings indicate that innate odor-induced behaviors can depend on context, that signals from a single receptor can block innate odor aversion, and that instinctive behavioral responses to odors can be modulated by interactions in the brain among signals derived from different receptors. PMID:27208093

Language-mediated visual orienting behavior in low and high literates

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Falk eHuettig

2011-10-01

Full Text Available The influence of formal literacy on spoken language-mediated visual orienting was investigated by using a simple look and listen task (cf. Huettig & Altmann, 2005 which resembles every day behavior. In Experiment 1, high and low literates listened to spoken sentences containing a target word (e.g., 'magar', crocodile while at the same time looking at a visual display of four objects (a phonological competitor of the target word, e.g., 'matar', peas; a semantic competitor, e.g., 'kachuwa', turtle, and two unrelated distractors. In Experiment 2 the semantic competitor was replaced with another unrelated distractor. Both groups of participants shifted their eye gaze to the semantic competitors (Experiment 1. In both experiments high literates shifted their eye gaze towards phonological competitors as soon as phonological information became available and moved their eyes away as soon as the acoustic information mismatched. Low literates in contrast only used phonological information when semantic matches between spoken word and visual referent were impossible (Experiment 2 but in contrast to high literates these phonologically-mediated shifts in eye gaze were not closely time-locked to the speech input. We conclude that in high literates language-mediated shifts in overt attention are co-determined by the type of information in the visual environment, the timing of cascaded processing in the word- and object-recognition systems, and the temporal unfolding of the spoken language. Our findings indicate that low literates exhibit a similar cognitive behavior but instead of participating in a tug-of-war among multiple types of cognitive representations, word-object mapping is achieved primarily at the semantic level. If forced, for instance by a situation in which semantic matches are not present (Experiment 2, low literates may on occasion have to rely on phonological information but do so in a much less proficient manner than their highly literate

Effects of ionizing radiation on locomotory behavior and mechanosensation in Caenorhabditis elegans

International Nuclear Information System (INIS)

Suzuki, Michiyo; Sakashita, Tetsuya; Kikuchi, Masahiro; Ohba, Hirofumi; Hamada, Nobuyuki; Funayama, Tomoo; Fukamoto, Kana; Kobayashi, Yasuhiko; Yanase, Sumino; Higashitani, Atsushi; Tsuji, Toshio

2009-01-01

Locomotory behavior (motility) and mechanosensation are of vital importance in animals. We examined the effects of ionizing radiation (IR) on locomotory behavior and mechanosensation using a model organism, the nematode Caenorhabditis elegans. Bacterial mechanosensation in C. elegans induces the dopamine-mediated slowing of locomotion in the presence of bacteria (food), known as the basal slowing response. We previously reported an IR-induced reduction of locomotory rate in the absence of food. In the present study, we observed a similar IR-induced reduction of locomotory rate in the cat-2 mutant, which is defective in bacterial mechanosensation. The dose response pattern of the locomotory rate in the presence of food was relatively flat in wild-type animals, but not in cat-2 mutants. This suggests that the dopamine system, which is related to bacterial mechanosensation in C. elegans, might have a dominant effect on locomotory rate in the presence of food, which masks the effects of other stimuli. Moreover, we found that the behavioral responses of hydrogen peroxide-exposed wild-type animals are similar to those of IR-exposed animals. Our findings suggest that the IR-induced reduction of locomotory rate in the absence of food is mediated by a different pathway from that for bacterial mechanosensation, at least partially through IR-produced hydrogen peroxide. (author)

Sexual Assault and Sexual Risk Behaviors Among Lower-Income Rural Women: The Mediating Role of Self-Worth.

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Dodd, Julia; Littleton, Heather

2017-02-01

Sexual victimization is associated with risky sexual behaviors. Limited research has examined mechanisms via which victimization affects risk behaviors, particularly following different types of sexual victimization. This study examined self-worth as a mediator of the relationship between sexual victimization history: contact childhood sexual abuse (CSA), completed rape in adolescence/adulthood (adolescent/adulthood sexual assault [ASA]), and combined CSA/ASA, and two sexual risk behaviors: past year partners and one-time encounters. Participants were diverse (57.9% African American), low-income women recruited from an OB-GYN waiting room (n = 646). Women with a history of sexual victimization, 29.8% (n = 186) reported lower self-worth, t(586) = 5.26, p < .001, and more partners, t(612) = 2.45, p < .01, than nonvictims. Self-worth was a significant mediator only among women with combined CSA/ASA histories in both risk behavior models.

Career exploration behavior of Korean medical students

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Hyejin An

2017-09-01

Full Text Available Purpose This study is to analyze the effects of medical students’ social support and career barriers on career exploration behavior mediated by career decision-making self-efficacy. Methods We applied the t-test to investigate the difference among the variables based on gender and admission types. Also, we performed path analysis to verify the effect of perceived career barriers and social support on career exploration behavior with career decision efficacy as a mediator. Results First, we noted statistically significant gender and admission type difference in social support, career barriers and career exploration behaviors. Second, social support and career barriers were found to influence career exploration behavior as a mediating variable for career decision-making self-efficacy. Conclusion Social support and career barriers as perceived by medical students influenced their career exploration behavior, with their decision-making self-efficacy serving as a full mediator. Therefore, this study has educational implications for career program development and educational training for career decision-making self-efficacy.

Career exploration behavior of Korean medical students.

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An, Hyejin; Lee, Seung-Hee

2017-09-01

This study is to analyze the effects of medical students' social support and career barriers on career exploration behavior mediated by career decision-making self-efficacy. We applied the t-test to investigate the difference among the variables based on gender and admission types. Also, we performed path analysis to verify the effect of perceived career barriers and social support on career exploration behavior with career decision efficacy as a mediator. First, we noted statistically significant gender and admission type difference in social support, career barriers and career exploration behaviors. Second, social support and career barriers were found to influence career exploration behavior as a mediating variable for career decision-making self-efficacy. Social support and career barriers as perceived by medical students influenced their career exploration behavior, with their decision-making self-efficacy serving as a full mediator. Therefore, this study has educational implications for career program development and educational training for career decision-making self-efficacy.

Estimating and Testing Mediation Effects with Censored Data

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Wang, Lijuan; Zhang, Zhiyong

2011-01-01

This study investigated influences of censored data on mediation analysis. Mediation effect estimates can be biased and inefficient with censoring on any one of the input, mediation, and output variables. A Bayesian Tobit approach was introduced to estimate and test mediation effects with censored data. Simulation results showed that the Bayesian…

The relationship between childhood conduct disorder and adult antisocial behavior is partially mediated by early-onset alcohol abuse.

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Khalifa, Najat; Duggan, Conor; Howard, Rick; Lumsden, John

2012-10-01

Early-onset alcohol abuse (EOAA) was previously found to both mediate and moderate the effect of childhood conduct disorder (CD) on adult antisocial behavior (ASB) in an American community sample of young adults (Howard, R., Finn, P. R., Gallagher, J., & Jose, P. (2011). Adolescent-onset alcohol abuse exacerbates the influence of childhood conduct disorder on late adolescent and early adult antisocial behavior. Journal of Forensic Psychiatry and Psychology. Advance online publication. doi:10.1080/14789949.2011.641996). This study tested whether this result would generalize to a British forensic sample comprising 100 male forensic patients with confirmed personality disorder. Results confirmed that those in whom EOAA co-occurred with CD showed the highest level of personality pathology, particularly Cluster B traits and antisocial/borderline comorbidity. Those with co-occurring CD with EOAA, compared with those showing only CD, showed more violence in their criminal history and greater recreational drug use. Regression analysis showed that both EOAA and CD predicted adult ASB when covariates were controlled. Further analysis showed that EOAA significantly mediated but did not moderate the effect of CD on ASB. The failure to demonstrate an exacerbating effect of EOAA on the relationship between CD and ASB likely reflects the high prevalence of CD in this forensic sample. Some implications of these findings are discussed. (PsycINFO Database Record (c) 2012 APA, all rights reserved).

Testing Theories of Dietary Behavior Change in Youth Using the Mediating Variable Model with Intervention Programs

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Cerin, Ester; Barnett, Anthony; Baranowski, Tom

2009-01-01

Objective: To review and critique current experimentally-based evidence of theoretical mechanisms of dietary behavior change in youth and provide recommendations on ways to enhance theory evaluation. Methods: Interventions that examined mediators of dietary behavior change in youth (age 5-18 years) were identified via electronic database searches…

Seemingly irrational driving behavior model: The effect of habit strength and anticipated affective reactions.

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Chung, Yi-Shih

2015-09-01

An increasing amount of evidence suggests that aberrant driving behaviors are not entirely rational. On the basis of the dual-process theory, this study postulates that drivers may learn to perform irrational aberrant driving behaviors, and these behaviors could be derived either from a deliberate or an intuitive decision-making approach. Accordingly, a seemingly irrational driving behavior model is proposed; in this model, the theory of planned behavior (TPB) was adopted to represent the deliberate decision-making mechanism, and habit strength was incorporated to reflect the intuitive decision process. A multiple trivariate mediation structure was designed to reflect the process through which driving behaviors are learned. Anticipated affective reactions (AARs) were further included to examine the effect of affect on aberrant driving behaviors. Considering the example of speeding behaviors, this study developed scales and conducted a two-wave survey of students in two departments at a university in Northern Taiwan. The analysis results show that habit strength consists of multiple aspects, and frequency of past behavior cannot be a complete repository for accumulating habit strength. Habit strength appeared to be a crucial mediator between intention antecedents (e.g., attitude) and the intention itself. Including habit strength in the TPB model enhanced the explained variance of speeding intention by 26.7%. In addition, AARs were different from attitudes; particularly, young drivers tended to perform speeding behaviors to reduce negative feelings such as regret. The proposed model provides an effective alternative approach for investigating aberrant driving behaviors; corresponding countermeasures are discussed. Copyright © 2015 Elsevier Ltd. All rights reserved.

Preschool Interactive Peer Play Mediates Problem Behavior and Learning for Low-Income Children

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Bulotsky-Shearer, Rebecca J.; Bell, Elizabeth R.; Romero, Sandy L.; Carter, Tracy M.

2012-01-01

The study employed a developmental, ecological, and resiliency framework to examine whether interactive peer play competencies mediated associations between teacher reported problem behavior and learning outcomes for a representative sample of urban low-income children (N = 507 across 46 Head Start classrooms). Structural equation models provided…

Procedural Information and Behavioral Control: Longitudinal Analysis of the Intention-Behavior Gap in the Context of Recycling

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Sonny Rosenthal

2018-01-01

Full Text Available The theory of planned behavior states that individuals act on their intentions, especially when they have behavioral control. The current study examines how seeking recycling-related procedural information—i.e., information about how and where to recycle—is related to behavioral control. Hypothesis testing used hierarchical ordinary least squares regression analysis of longitudinal data from 553 survey respondents. Results supported seven hypotheses. Most notably, procedural information seeking both mediated and moderated the relationship between intention and behavior. Further, the moderation effect was itself mediated by behavioral control. The argument for this mediated moderation is that information seeking enhances behavioral control, and it is primarily behavioral control that moderates the relationship between intention and behavior. These results have implications for the theory of planned behavior and, more generally, for how individuals use information to support their behaviors.

Gender-based violence and HIV sexual risk behavior: alcohol use and mental health problems as mediators among women in drinking venues, Cape Town.

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Pitpitan, Eileen V; Kalichman, Seth C; Eaton, Lisa A; Sikkema, Kathleen J; Watt, Melissa H; Skinner, Donald

2012-10-01

Gender-based violence is a key determinant of HIV infection among women in South Africa as elsewhere. However, research has not examined potential mediating processes to explain the link between experiencing abuse and engaging in HIV sexual risk behavior. Previous studies suggest that alcohol use and mental health problems may explain how gender-based violence predicts sexual risk. In a prospective study, we examined whether lifetime history of gender-based violence indirectly affects future sexual risk behavior through alcohol use, depression and post-traumatic stress disorder (PTSD) in a high-risk socio-environmental context. We recruited a cohort of 560 women from alcohol drinking venues in a Cape Town, South African township. Participants completed computerized interviews at baseline and 4 months later. We tested prospective mediating associations between gender-based violence, alcohol use, depression, PTSD, and sexual risk behavior. There was a significant indirect effect of gender-based violence on sexual risk behavior through alcohol use, but not mental health problems. Women who were physically and sexually abused drank more, which in turn predicted more unprotected sex. We did not find a mediated relationship between alcohol use and sexual risk behavior through the experience of recent abuse or mental health problems. Alcohol use explains the link between gender-based violence and sexual risk behavior among women attending drinking venues in Cape Town, South Africa. Efforts to reduce HIV risk in South Africa by addressing gender-based violence must also address alcohol use. Copyright © 2012 Elsevier Ltd. All rights reserved.

Does Practicing CSR Makes Consumers Like Your Shop More? Consumer-Retailer Love Mediates CSR and Behavioral Intentions

Directory of Open Access Journals (Sweden)

Ching-Wei Ho

2017-12-01

Full Text Available This research paper was designed to examine the influence of corporate social responsibility (CSR associations and environmental concerns on consumer-retailer love and attitude toward the retailer, as well as the subsequent effects on consumer behavioral intentions regarding the retailer, such as repeat patronage intention and willingness to pay a premium price for products offered by the retailer. In this study, a questionnaire survey was conducted on consumers for the purpose of investigating five proposed hypotheses. This research applied partial least squares (PLS to exam the hypotheses and analyze the data. The findings of this research indicated that CSR association and environmental concern both have positive effects on consumer-retailer love and attitude toward the retailer. Also, the results showed that consumer-retailer love has a significantly positive effect on consumer attitude towards the retailer. This paper establishes that consumer-retailer love and attitude toward a retailer are main mediators of the relationship between CSR associations, environmental concern, and consumer behavioral intentions.

Does Practicing CSR Makes Consumers Like Your Shop More? Consumer-Retailer Love Mediates CSR and Behavioral Intentions

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Ho, Ching-Wei

2017-01-01

This research paper was designed to examine the influence of corporate social responsibility (CSR) associations and environmental concerns on consumer-retailer love and attitude toward the retailer, as well as the subsequent effects on consumer behavioral intentions regarding the retailer, such as repeat patronage intention and willingness to pay a premium price for products offered by the retailer. In this study, a questionnaire survey was conducted on consumers for the purpose of investigating five proposed hypotheses. This research applied partial least squares (PLS) to exam the hypotheses and analyze the data. The findings of this research indicated that CSR association and environmental concern both have positive effects on consumer-retailer love and attitude toward the retailer. Also, the results showed that consumer-retailer love has a significantly positive effect on consumer attitude towards the retailer. This paper establishes that consumer-retailer love and attitude toward a retailer are main mediators of the relationship between CSR associations, environmental concern, and consumer behavioral intentions. PMID:29231873

Does Practicing CSR Makes Consumers Like Your Shop More? Consumer-Retailer Love Mediates CSR and Behavioral Intentions.

Science.gov (United States)

Ho, Ching-Wei

2017-12-12

This research paper was designed to examine the influence of corporate social responsibility (CSR) associations and environmental concerns on consumer-retailer love and attitude toward the retailer, as well as the subsequent effects on consumer behavioral intentions regarding the retailer, such as repeat patronage intention and willingness to pay a premium price for products offered by the retailer. In this study, a questionnaire survey was conducted on consumers for the purpose of investigating five proposed hypotheses. This research applied partial least squares (PLS) to exam the hypotheses and analyze the data. The findings of this research indicated that CSR association and environmental concern both have positive effects on consumer-retailer love and attitude toward the retailer. Also, the results showed that consumer-retailer love has a significantly positive effect on consumer attitude towards the retailer. This paper establishes that consumer-retailer love and attitude toward a retailer are main mediators of the relationship between CSR associations, environmental concern, and consumer behavioral intentions.

Maternal Depression Mediates the Link Between Therapeutic Alliance and Improvements in Adolescent Externalizing Behavior

NARCIS (Netherlands)

Granic, I.; Otten, R.; Blokland, K.; Solomon, T.; Engels, R.C.M.E.; Ferguson, B.

2012-01-01

The current study: (1) examined the relation between therapeutic alliance and changes in adolescent externalizing behavior in Multisystemic Therapy; (2) tested whether maternal depression mediates this relation; and (3) determined whether mothers' and clinicians' perceptions of the alliance

A classical regression framework for mediation analysis: fitting one model to estimate mediation effects.

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Saunders, Christina T; Blume, Jeffrey D

2017-10-26

Mediation analysis explores the degree to which an exposure's effect on an outcome is diverted through a mediating variable. We describe a classical regression framework for conducting mediation analyses in which estimates of causal mediation effects and their variance are obtained from the fit of a single regression model. The vector of changes in exposure pathway coefficients, which we named the essential mediation components (EMCs), is used to estimate standard causal mediation effects. Because these effects are often simple functions of the EMCs, an analytical expression for their model-based variance follows directly. Given this formula, it is instructive to revisit the performance of routinely used variance approximations (e.g., delta method and resampling methods). Requiring the fit of only one model reduces the computation time required for complex mediation analyses and permits the use of a rich suite of regression tools that are not easily implemented on a system of three equations, as would be required in the Baron-Kenny framework. Using data from the BRAIN-ICU study, we provide examples to illustrate the advantages of this framework and compare it with the existing approaches. © The Author 2017. Published by Oxford University Press.

The limits of child effects: evidence for genetically mediated child effects on corporal punishment but not on physical maltreatment.

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Jaffee, Sara R; Caspi, Avshalom; Moffitt, Terrie E; Polo-Tomas, Monica; Price, Thomas S; Taylor, Alan

2004-11-01

Research on child effects has demonstrated that children's difficult and coercive behavior provokes harsh discipline from adults. Using a genetically sensitive design, the authors tested the limits of child effects on adult behavior that ranged from the normative (corporal punishment) to the nonnormative (physical maltreatment). The sample was a 1994-1995 nationally representative birth cohort of 1,116 twins and their families who participated in the Environmental Risk Longitudinal Study. Results showed that environmental factors accounted for most of the variation in corporal punishment and physical maltreatment. However, corporal punishment was genetically mediated in part, and the genetic factors that influenced corporal punishment were largely the same as those that influenced children's antisocial behavior, suggesting a child effect. The authors conclude that risk factors for maltreatment are less likely to reside within the child and more likely to reside in characteristics that differ between families. (c) 2004 APA, all rights reserved

Improvements in closeness, communication, and psychological distress mediate effects of couple therapy for veterans.

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Doss, Brian D; Mitchell, Alexandra; Georgia, Emily J; Biesen, Judith N; Rowe, Lorelei Simpson

2015-04-01

Empirically based couple therapy results in significant improvements in relationship satisfaction for the average couple; however, further research is needed to identify mediators that lead to change and to ensure that improvements in mediators predict subsequent-not just concurrent-relationship satisfaction. In addition, given that much of the current literature on couple therapy examines outcomes in a research environment, it is important to examine mediators in a treatment-as-usual setting. To address these questions, 161 heterosexual couples (322 individuals) received treatment-as-usual couple therapy at one of two Veteran Administration Medical Centers (M = 5.0 and 13.0 sessions at the two sites) and were assessed before every session. The majority of couples were married (85%) and had been together for a median of 7.8 years (SD = 13). Participants were primarily White, non-Hispanic (69%), African American (21%), and White, Hispanic/Latino (8%). Individuals' own self-reported improvements in communication, emotional closeness, and psychological distress (but not frequency of behaviors targeted in treatment) mediated the effect of treatment on their subsequent relationship satisfaction. When all significant mediators were examined simultaneously, improvements in men's and women's emotional closeness and men's psychological distress independently mediated subsequent relationship satisfaction. In contrast, improvements in earlier relationship satisfaction mediated the effect of treatment only on subsequent psychological distress. This study identifies unique mediators of treatment effects and shows that gains in mechanisms predict subsequent relationship satisfaction. Future investigations should focus on the role of emotional closeness and psychological distress-constructs that have often been neglected-in couple therapy. (PsycINFO Database Record (c) 2015 APA, all rights reserved).

The Mediating Roles of Stress and Maladaptive Behaviors on Self-Harm and Suicide Attempts among Runaway and Homeless Youth

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Moskowitz, Amanda; Stein, Judith A.; Lightfoot, Marguerita

2013-01-01

Runaway and homeless youth often have a constellation of background behavioral, emotional, and familial problems that contribute to stress and maladaptive behaviors, which, in turn, can lead to self-harming and suicidal behaviors. The current study examined the roles of stress and maladaptive behaviors as mediators between demographic and…

Statistical properties of four effect-size measures for mediation models.

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Miočević, Milica; O'Rourke, Holly P; MacKinnon, David P; Brown, Hendricks C

2018-02-01

This project examined the performance of classical and Bayesian estimators of four effect size measures for the indirect effect in a single-mediator model and a two-mediator model. Compared to the proportion and ratio mediation effect sizes, standardized mediation effect-size measures were relatively unbiased and efficient in the single-mediator model and the two-mediator model. Percentile and bias-corrected bootstrap interval estimates of ab/s Y , and ab(s X )/s Y in the single-mediator model outperformed interval estimates of the proportion and ratio effect sizes in terms of power, Type I error rate, coverage, imbalance, and interval width. For the two-mediator model, standardized effect-size measures were superior to the proportion and ratio effect-size measures. Furthermore, it was found that Bayesian point and interval summaries of posterior distributions of standardized effect-size measures reduced excessive relative bias for certain parameter combinations. The standardized effect-size measures are the best effect-size measures for quantifying mediated effects.

Attitudinal Ambivalence as a Protective Factor Against Junk Food Advertisements: A Moderated Mediation Model of Behavioral Intention.

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Ran, Weina; Yamamoto, Masahiro

2015-08-01

This study investigates the role of attitudinal ambivalence in moderating the effects of junk food advertisements on behavioral intentions by tapping different facets of this construct-felt ambivalence, potential ambivalence, and affective-cognitive ambivalence. Results based on an online survey of college students indicate that attention to junk food advertisements has an indirect positive effect on intentions to eat junk food through its positive effect on attitudes toward junk food. A moderated mediation model reveals that this indirect effect of junk food advertisements is weakened as respondents' levels of felt ambivalence increase. This moderating role is not observed for the measures of potential ambivalence and affective-cognitive ambivalence. Implications are discussed for health interventions.

Parenting Behaviors, Association with Deviant Peers, and Delinquency in African American Adolescents: A Mediated-Moderation Model

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Bowman, Marvella A.; Prelow, Hazel M.; Weaver, Scott R.

2007-01-01

The aim of the present study was to examine a model positing that association with deviant peers mediates the relation between adolescent perceived parenting behaviors (maternal monitoring and involvement), the interaction of these parenting behaviors, and delinquency in a sample of 135 urban African American adolescents (13-19 years of age).…

Regulatory Focus as a Mediator of the Influence of Initiating Structure and Servant Leadership on Employee Behavior

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Neubert, Mitchell J.; Kacmar, K. Michele; Carlson, Dawn S.; Chonko, Lawrence B.; Roberts, James A.

2008-01-01

In this research, the authors test a model in which the regulatory focus of employees at work mediates the influence of leadership on employee behavior. In a nationally representative sample of 250 workers who responded over 2 time periods, prevention focus mediated the relationship of initiating structure to in-role performance and deviant…

Predicting risky sexual behavior in emerging adulthood: examination of a moderated mediation model among child sexual abuse and adult sexual assault victims.

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Littleton, Heather L; Grills, Amie E; Drum, Katherine B

2014-01-01

Although having a sexual victimization history is associated with engaging in sexual risk behavior, the mechanisms whereby sexual victimization increases risk behavior are unclear. This study examined use of sex as an affect regulation strategy as a mediator of the relationship between depressive symptoms and sexual risk behavior among 1,616 sexually active college women as well as examined having a history of child sexual abuse (CSA), adolescent/adult sexual assault (ASA), or both (CSA/ASA) as moderators. Results supported the mediated model as well as moderated mediation, where depressive symptoms were more strongly associated with use of sex as an affect regulation strategy among ASA victims, and sex as an affect regulation strategy was more strongly related to sexual risk behavior for CSA/ASA victims.

The effect of olfactory exposure to non-insecticidal agrochemicals on bumblebee foraging behavior.

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Sprayberry, Jordanna D H; Ritter, Kaitlin A; Riffell, Jeffrey A

2013-01-01

Declines in bumblebee populations have led to investigations into potential causes - including agrochemical effects on bumblebee physiology. The indirect effects of agrochemicals (i.e. behavior modulation) have been postulated, but rarely directly tested. Olfactory information is critical in mediating bumblebee-floral interactions. As agrochemicals emit volatiles, they may indirectly modify foraging behavior. We tested the effects of olfactory contamination of floral odor by agrochemical scent on foraging activity of Bombus impatiens using two behavioral paradigms: localization of food within a maze and forced-choice preference. The presence of a fungicide decreased bumblebees' ability to locate food within a maze. Additionally, bumblebees preferred to forage in non-contaminated feeding chambers when offered a choice between control and either fertilizer- or fungicide-scented chambers.

The effect of olfactory exposure to non-insecticidal agrochemicals on bumblebee foraging behavior.

Directory of Open Access Journals (Sweden)

Jordanna D H Sprayberry

Full Text Available Declines in bumblebee populations have led to investigations into potential causes - including agrochemical effects on bumblebee physiology. The indirect effects of agrochemicals (i.e. behavior modulation have been postulated, but rarely directly tested. Olfactory information is critical in mediating bumblebee-floral interactions. As agrochemicals emit volatiles, they may indirectly modify foraging behavior. We tested the effects of olfactory contamination of floral odor by agrochemical scent on foraging activity of Bombus impatiens using two behavioral paradigms: localization of food within a maze and forced-choice preference. The presence of a fungicide decreased bumblebees' ability to locate food within a maze. Additionally, bumblebees preferred to forage in non-contaminated feeding chambers when offered a choice between control and either fertilizer- or fungicide-scented chambers.

Cultural Values as Mediators between Parenting Styles and Bullying Behavior at School

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Georgiou, Stelios N.; Ioannou, Myria; Stavrinides, Panayiotis

2018-01-01

The purpose of this study was to examine the relationship between parenting styles, cultural values and bullying behavior at school. The main objective was to test the mediating role of cultural values in these relationships. The participants were 985 pre-adolescents, aged 10-12 years old (M = 10.95, SD = 0.75) from Cyprus and Greece who completed…

Health message framing effects on attitudes, intentions, and behavior: a meta-analytic review.

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Gallagher, Kristel M; Updegraff, John A

2012-02-01

Message framing has been an important focus in health communication research, yet prior meta-analyses found limited support for using framing to increase persuasiveness of health messages. This meta-analysis distinguished the outcomes used to assess the persuasive impact of framed messages (attitudes, intentions, or behavior). One hundred eighty-nine effect sizes were identified from 94 peer-reviewed, published studies which compared the persuasive impact of gain- and loss-framed messages. Gain-framed messages were more likely than loss-framed messages to encourage prevention behaviors (r = 0.083, p = 0.002), particularly for skin cancer prevention, smoking cessation, and physical activity. No effect of framing was found when persuasion was assessed by attitudes/intentions or among studies encouraging detection. Gain-framed messages appear to be more effective than loss-framed messages in promoting prevention behaviors. Research should examine the contexts in which loss-framed messages are most effective, and the processes that mediate the effects of framing on behavior.

Poverty and Child Behavioral Problems: The Mediating Role of Parenting and Parental Well-Being.

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Kaiser, Till; Li, Jianghong; Pollmann-Schult, Matthias; Song, Anne Y

2017-08-30

The detrimental impact of poverty on child behavioral problems is well-established, but the mechanisms that explain this relationship are less well-known. Using data from the Families in Germany Study on parents and their children at ages 9-10 (middle childhood), this study extends previous research by examining whether or not and to what extent different parenting styles and parents' subjective well-being explain the relationship between poverty and child behavior problems. The results show that certain parenting styles, such as psychological control, as well as mothers' life satisfaction partially mediate the correlation between poverty and child behavioral problems.

Poverty and Child Behavioral Problems: The Mediating Role of Parenting and Parental Well-Being

Science.gov (United States)

Kaiser, Till; Li, Jianghong; Pollmann-Schult, Matthias; Song, Anne Y.

2017-01-01

The detrimental impact of poverty on child behavioral problems is well-established, but the mechanisms that explain this relationship are less well-known. Using data from the Families in Germany Study on parents and their children at ages 9–10 (middle childhood), this study extends previous research by examining whether or not and to what extent different parenting styles and parents’ subjective well-being explain the relationship between poverty and child behavior problems. The results show that certain parenting styles, such as psychological control, as well as mothers’ life satisfaction partially mediate the correlation between poverty and child behavioral problems. PMID:28867777

Testing Mediators of Intervention Effects in Randomized Controlled Trials: An Evaluation of Three Depression Prevention Programs

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Stice, Eric; Rohde, Paul; Seeley, John R.; Gau, Jeff M.

2010-01-01

Objective: Evaluate a new 5-step method for testing mediators hypothesized to account for the effects of depression prevention programs. Method: In this indicated prevention trial, at-risk teens with elevated depressive symptoms were randomized to a group cognitive-behavioral (CB) intervention, group supportive expressive intervention, CB…

Delay Discounting Mediates Parent-Adolescent Relationship Quality and Risky Sexual Behavior for Low Self-Control Adolescents

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Kahn, Rachel E.; Holmes, Christopher; Farley, Julee P.; Kim-Spoon, Jungmeen

2015-01-01

Parent-adolescent relationship quality and delay discounting may play important roles in adolescents’ sexual decision making processes, and levels of self-control during adolescence could act as a buffer within these factors. This longitudinal study included 219 adolescent (55% male; mean age = 12.66 years at Wave 1; mean age = 15.10 years at Wave 2) and primary caregiver dyads. Structural equation modeling was utilized to determine whether delay discounting mediated the association between parent-adolescent relationship quality and adolescents’ risky sexual behavior and how this mediated association may differ between those with high versus low self-control. The results revealed parent-adolescent relationship quality plays a role in the development of risky sexual behavior indirectly through levels of delay discounting, but only for adolescents with low self-control. These findings could inform sex education policies and health prevention programs that address adolescent risky sexual behavior. PMID:26202153

Transformational Leadership and Knowledge Sharing: Mediating Roles of Employee's Empowerment, Commitment, and Citizenship Behaviors

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Han, Seung Hyun; Seo, Gaeun; Yoon, Seung Won; Yoon, Dong-Yeol

2016-01-01

Purpose: The purpose of this paper is to empirically examine the fundamental process through which transformational leaders play a significant role in employees' knowledge sharing by investigating mediating roles of individual affects, particularly psychological empowerment, organizational commitment and organizational citizenship behavior (OCB).…

Adolescent-parent attachment and externalizing behavior: the mediating role of individual and social factors.

NARCIS (Netherlands)

de Vries, L.A.; Hoeve, M.; Stams, G.J.J.M.; Asscher, J.J.

2015-01-01

The aim of this study was to test whether the associations between adolescent-parent attachment and externalizing problem behavior of adolescents were mediated by adolescent cognitive distortions, self-esteem, parental monitoring and association with deviant peers. A total of 102 adolescents (71 %

Adolescent-parent attachment and externalizing behavior: The mediating role of individual and social factors

NARCIS (Netherlands)

de Vries, S.L.A.; Hoeve, M.; Stams, G.J.J.M.; Asscher, J.J.

2016-01-01

The aim of this study was to test whether the associations between adolescent-parent attachment and externalizing problem behavior of adolescents were mediated by adolescent cognitive distortions, self-esteem, parental monitoring and association with deviant peers. A total of 102 adolescents (71 %

Father's and Mother's Perceptions of Parenting Styles as Mediators of the Effects of Parental Psychopathology on Antisocial Behavior in Outpatient Children and Adolescents

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Vera, Juan; Granero, Roser; Ezpeleta, Lourdes

2012-01-01

The aim was to examine the potential mediating role of father's and mother's parenting styles in the association between parental psychopathology and antisocial behavior in children, and whether this pathway was moderated by child's sex. Participants included both parents and 338 Spanish outpatient children between 8 and 17 years (56.5% boys).…

Directionality in the Relationship of Self-regulation, Self-efficacy, and Mood Changes in Facilitating Improved Physical Activity and Nutrition Behaviors: Extending Behavioral Theory to Improve Weight-Loss Treatment Effects.

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Annesi, James J; Vaughn, Linda L

2017-06-01

To improve understanding of directionality in the dynamic relationships among psychosocial predictors of behavioral changes associated with weight loss. In women with obesity participating in a new behavioral weight-loss treatment that emphasizes physical activity (n = 53; body mass index = 34.7 ± 3.3 kg/m 2 ), mediation and moderated-mediation models were fit to assess directionality in the self-efficacy-self-regulation change relationship and additional effects of mood change and its basis on fruit/vegetable intake and physical activity behaviors through month 6 and from months 6 to 24. Self-regulation was a stronger predictor of change in self-efficacy than vice versa. Mood change did not moderate the relationships significantly between changes in self-efficacy and/or self-regulation, and weight loss behavior. Emotional eating significantly changed mediated relationships between changes in mood and fruit/vegetable intake through month 6 (95% confidence interval, -0.05 to 0.00). Findings clarified relationships of self-efficacy, self-regulation, and mood in the prediction of weight loss behaviors, and informed behavioral treatments for improved outcomes. Copyright © 2017 Society for Nutrition Education and Behavior. Published by Elsevier Inc. All rights reserved.

Associations between Sexual Abuse and Family Conflict/Violence, Self-Injurious Behavior, and Substance Use: The Mediating Role of Depressed Mood and Anger

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Asgeirsdottir, Bryndis Bjork; Sigfusdottir, Inga Dora; Gudjonsson, Gisli H.; Sigurdsson, Jon Fridrik

2011-01-01

Objective: To examine whether depressed mood and anger mediate the effects of sexual abuse and family conflict/violence on self-injurious behavior and substance use. Methods: A cross-sectional national survey was conducted including 9,085 16-19 year old students attending all high schools in Iceland in 2004. Participants reported frequency of…

Attention Problems Mediate the Association between Severity of Physical Abuse and Aggressive Behavior in a Sample of Maltreated Early Adolescents

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Garrido, Edward F.; Taussig, Heather N.; Culhane, Sara E.; Raviv, Tali

2011-01-01

Empirical evidence has accumulated documenting an association between childhood physical abuse and aggressive behavior. Relatively fewer studies have explored possible mediating mechanisms that may explain this association. The purpose of the current study was to examine whether caregiver- and youth-reported attention problems mediate the association between physical abuse severity and aggressive behavior. A sample of 240 maltreated early adolescents (ages 9–11) and their caregivers were inte...

Neural Reactivity to Emotional Faces Mediates the Relationship Between Childhood Empathy and Adolescent Prosocial Behavior

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Flournoy, John C.; Pfeifer, Jennifer H.; Moore, William E.; Tackman, Allison; Masten, Carrie L.; Mazziotta, John C.; Iacoboni, Marco; Dapretto, Mirella

2017-01-01

Reactivity to others' emotions can result in empathic concern (EC), an important motivator of prosocial behavior, but can also result in personal distress (PD), which may hinder prosocial behavior. Examining neural substrates of emotional reactivity may elucidate how EC and PD differentially influence prosocial behavior. Participants (N=57) provided measures of EC, PD, prosocial behavior, and neural responses to emotional expressions at age 10 and 13. Initial EC predicted subsequent prosocial behavior. Initial EC and PD predicted subsequent reactivity to emotions in the inferior frontal gyrus (IFG) and inferior parietal lobule, respectively. Activity in the IFG, a region linked to mirror neuron processes, as well as cognitive control and language, mediated the relation between initial EC and subsequent prosocial behavior. PMID:28262939

Disentangling the risk assessment and intimate partner violence relation: Estimating mediating and moderating effects.

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Williams, Kirk R; Stansfield, Richard

2017-08-01

To manage intimate partner violence (IPV), the criminal justice system has turned to risk assessment instruments to predict if a perpetrator will reoffend. Empirically determining whether offenders assessed as high risk are those who recidivate is critical for establishing the predictive validity of IPV risk assessment instruments and for guiding the supervision of perpetrators. But by focusing solely on the relation between calculated risk scores and subsequent IPV recidivism, previous studies of the predictive validity of risk assessment instruments omitted mediating factors intended to mitigate the risk of this behavioral recidivism. The purpose of this study was to examine the mediating effects of such factors and the moderating effects of risk assessment on the relation between assessed risk (using the Domestic Violence Screening Instrument-Revised [DVSI-R]) and recidivistic IPV. Using a sample of 2,520 perpetrators of IPV, results revealed that time sentenced to jail and time sentenced to probation each significantly mediated the relation between DVSI-R risk level and frequency of reoffending. The results also revealed that assessed risk moderated the relation between these mediating factors and IPV recidivism, with reduced recidivism (negative estimated effects) for high-risk perpetrators but increased recidivism (positive estimate effects) for low-risk perpetrators. The implication is to assign interventions to the level of risk so that no harm is done. (PsycINFO Database Record (c) 2017 APA, all rights reserved).

EFFECTS OF ETHICAL LEADERSHIP ON EMPLOYEE WELL-BEING: THE MEDIATING ROLE OF PSYCHOLOGICAL EMPOWERMENT

Directory of Open Access Journals (Sweden)

Shania Dwi Rantika

2017-05-01

Full Text Available Leaders who promote ethical behavior are believed to affect their employees’ well-being. This study was conducted to examine psychological empowerment as the intervening variable that connects ethical leadership to employees’ well-being, work engagement, and emotional exhaustion. By using a mail survey, we distributed questionnaires to 219 auditors from 11 public accounting firms in Jakarta. All the hypotheses in this study were supported. Ethical leadership has a positive effect on psychological empowerment. Thus, psychological empowerment positively relates to work engagement and negatively relates to emotional exhaustion. The result demonstrated that psychological empowerment partially mediates the effect of ethical leadership on work engagement and fully mediates the effect on ethical leadership and emotional exhaustion. The findings reveal that ethical leadership stimulates the psychological empowerment of the employee, thus, it enhances work engagement and also minimizes emotional exhaustion.

Does Personal Distress Mediate the Effect of Mindfulness on Professional Quality of Life?

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Jacky T. Thomas

2012-11-01

Full Text Available Personal distress is an aspect of the empathy construct which has been negatively associated with a range of psychological and behavioral problems. However, it is unclear whether mindfulness serves to buffer these negative relationships. This study examines direct effects and mediation effects of personal distress and mindfulness among three measures of professional quality of life: compassion fatigue, burnout, and compassion satisfaction. This model was tested using a sample of clinical social workers (n = 171. Results indicated that higher personal distress is significantly associated with higher compassion fatigue and burnout and lower compassion satisfaction, while mindfulness is significantly associated with lower compassion fatigue and burnout and higher compassion satisfaction. Mediation analyses showed significant indirect effects on all three measures of professional quality of life, with effect sizes in the small to moderate range. The indirect effects of mindfulness via the personal distress path accounted for 14-22% of the total effect of mindfulness on the three measures of professional quality of life. Implications for the education and training of social workers are discussed.

Mediation of Weight Loss and Weight Loss Maintenance through Dietary Disinhibition and Restraint.

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JaKa, Meghan M; Sherwood, Nancy E; Flatt, Shirley W; Pacanowski, Carly R; Pakiz, Bilgé; Thomson, Cynthia A; Rock, Cheryl L

2015-04-01

Understanding the degree to which eating behaviors, such as disinhibition and restraint, are associated with weight loss and weight loss maintenance could contribute to further refinement of effective weight management intervention strategies. The purpose of this analysis was to examine if these factors mediate weight loss or weight loss maintenance using data from a randomized controlled trial testing a commercial weight loss program that delivered behavioral counseling and structured meal plans including prepackaged foods. Mediation analyses were used to examine whether changes in disinhibition and restraint mediated the relationship between intervention and weight change during initial weight loss (0-6 months), continued weight loss (6-12 months), or weight loss maintenance (12-24 months) phases. Only decreases in disinhibition between baseline and 6 months mediated the intervention effect on initial weight loss. Our results suggest the mediation effects of these eating behaviors are modest and other factors contribute to a larger, more complex long-term weight loss prognosis.

Health behavior change counseling in surgery for degenerative lumbar spinal stenosis. Part II: patient activation mediates the effects of health behavior change counseling on rehabilitation engagement.

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Skolasky, Richard L; Maggard, Anica M; Li, David; Riley, Lee H; Wegener, Stephen T

2015-07-01

To determine the effect of health behavior change counseling (HBCC) on patient activation and the influence of patient activation on rehabilitation engagement, and to identify common barriers to engagement among individuals undergoing surgery for degenerative lumbar spinal stenosis. Prospective clinical trial. Academic medical center. Consecutive lumbar spine surgery patients (N=122) defined in our companion article (Part I) were assigned to a control group (did not receive HBCC, n=59) or HBCC group (received HBCC, n=63). Brief motivational interviewing-based HBCC versus control (significance, Pgroup did not show improvement compared with the control group. Thematic analysis identified 3 common barriers to engagement: (1) low self-efficacy because of lack of knowledge and support (62%); (2) anxiety related to fear of movement (57%); and (3) concern about pain management (48%). The influence of HBCC on rehabilitation engagement was mediated by patient activation. Despite improvements in patient activation, one-third of patients reported low rehabilitation engagement. Addressing these barriers should lead to greater improvements in rehabilitation engagement. Copyright © 2015 American Congress of Rehabilitation Medicine. Published by Elsevier Inc. All rights reserved.

Effect of adherence to self-monitoring of diet and physical activity on weight loss in a technology-supported behavioral intervention

Directory of Open Access Journals (Sweden)

Wang J

2012-03-01

Full Text Available Jing Wang1, Susan M Sereika2,3, Eileen R Chasens2, Linda J Ewing4, Judith T Matthews2,5, Lora E Burke2,31School of Nursing, University of Texas Health Science Center at Houston, Houston, TX, 2School of Nursing, 3Graduate School of Public Health, 4School of Medicine, 5University Center for Social and Urban Research, University of Pittsburgh, Pittsburgh, PA, USABackground: Examination of mediating behavioral factors could explain how an intervention works and thus provide guidance to optimize behavioral weight-loss programs. This study examined the mediating role of adherence to self-monitoring of diet and physical activity on weight loss in a behavioral weight-loss trial testing the use of personal digital assistants (PDA for self-monitoring.Methods: Mediation analysis was conducted to examine the possible mediating role of adherence to self-monitoring of diet and physical activity between treatments using varying self-monitoring methods (paper record, PDA, and PDA with daily tailored feedback messages and weight loss.Findings: The sample (N = 210 was predominantly white (78% and female (85%. Compared to a paper record, using a PDA for self-monitoring diet (P = 0.027 and physical activity (P = 0.014 had significant direct effects on weight loss at 12 months, as well as a significant indirect effect on outcomes through improved adherence to self-monitoring (PS < 0.001. Receiving an automated daily feedback message via PDA only had a significant indirect effect on weight through self-monitoring adherence to diet (P = 0.004 and physical activity (P = 0.002.Conclusions: Adherence to self-monitoring of diet and physical activity is important as the underlying mechanism in this technology-supported behavioral weight-loss intervention.Keywords: behavioral intervention, self-monitoring, mobile technology, mediation analysis, weight loss, adherence 

Examination of mid-intervention mediating effects on objectively assessed sedentary time among children in the Transform-Us! cluster-randomized controlled trial.

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Carson, Valerie; Salmon, Jo; Arundell, Lauren; Ridgers, Nicola D; Cerin, Ester; Brown, Helen; Hesketh, Kylie D; Ball, Kylie; Chinapaw, Mai; Yildirim, Mine; Daly, Robin M; Dunstan, David W; Crawford, David

2013-05-20

The optimal targets and strategies for effectively reducing sedentary behavior among young people are unknown. Intervention research that explores changes in mediated effects as well as in outcome behaviors is needed to help inform more effective interventions. Therefore, the purpose of this study was to examine the mid-intervention mediating effects on children's objectively assessed classroom and total weekday sedentary time in the Transform-Us! intervention. The results are based on 293 children, aged 7- to 9-years-old at baseline, from 20 schools in Melbourne, Australia. Each school was randomly allocated to one of four groups, which targeted reducing sedentary time in the school and family settings (SB; n = 74), increasing or maintaining moderate- to vigorous-intensity physical activity in the school and family settings (PA; n = 75), combined SB and PA (SB + PA; n = 80), or the current practice control (C; n = 64). Baseline and mid-intervention data (5-9 months) were collected in 2010 and analyzed in 2012. Classroom and total weekday sedentary time was objectively assessed using ActiGraph accelerometers. The hypothesized mediators including, child enjoyment, parent and teacher outcome expectancies, and child perceived access to standing opportunities in the classroom environment, were assessed by questionnaire. The SB + PA group spent 13.3 min/day less in weekday sedentary time at mid-intervention compared to the control group. At mid-intervention, children in the SB group had higher enjoyment of standing in class (0.9 units; 5-unit scale) and all intervention groups had more positive perceptions of access to standing opportunities in the classroom environment (0.3-0.4 units; 3-unit scale), compared to the control group. However, none of the hypothesized mediator variables had an effect on sedentary time; thus, no mediating effects were observed. While beneficial intervention effects were observed on some hypothesized mediating

Longitudinal associations between marital stress and externalizing behavior: Does parental sense of competence mediate processes?

NARCIS (Netherlands)

Eldik, W.M. van; Prinzie, P.; Dekoviç, M.; Haan, A.D. de

2017-01-01

Ecological theories emphasize associations between children and elements within their family system, such as the marital relationship. Within a developmental perspective, we longitudinally examined (a) dynamic associations between marital stress and children's externalizing behavior, (b) mediation

Pain-mediated affect regulation is reduced after dialectical behavior therapy in borderline personality disorder: a longitudinal fMRI study.

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Niedtfeld, Inga; Schmitt, Ruth; Winter, Dorina; Bohus, Martin; Schmahl, Christian; Herpertz, Sabine C

2017-05-01

Borderline Personality Disorder (BPD) is characterized by affective instability, but self-injurious behavior appears to have an emotion-regulating effect. We investigated whether pain-mediated affect regulation can be altered at the neural level by residential Dialectical Behavior Therapy (DBT), providing adaptive emotion regulation techniques. Likewise, we investigated whether pain thresholds or the appraisal of pain change after psychotherapy. We investigated 28 patients with BPD undergoing DBT (self-referral), 15 patients with treatment as usual and 23 healthy control subjects at two time points 12 weeks apart. We conducted an fMRI experiment eliciting negative emotions with picture stimuli and induced heat pain to investigate the role of pain in emotion regulation. Additionally, we assessed heat and cold pain thresholds.At first measurement, patients with BPD showed amygdala deactivation in response to painful stimulation, as well as altered connectivity between left amygdala and dorsal anterior cingulate cortex. These effects were reduced after DBT, as compared with patients with treatment as usual. Pain thresholds did not differ between the patient groups. We replicated the role of pain as a means of affect regulation in BPD, indicated by increased amygdala coupling. For the first time, we could demonstrate that pain-mediated affect regulation can be changed by DBT. © The Author (2017). Published by Oxford University Press.

Evidence that NMDA-dependent limbic neural plasticity in the right hemisphere mediates pharmacological stressor (FG-7142)-induced lasting increases in anxiety-like behavior. Study 2--The effects on behavior of block of NMDA receptors prior to injection of FG-7142.

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Adamec, R E

1998-01-01

The hypothesis that N-methyl-D-aspartate (NMDA) receptors mediate initiation of lasting behavioral changes induced by the anxiogenic beta-carboline, FG-7142, was supported in this study. Behavioral changes normally induced by FG-7142 were blocked when the competitive NMDA receptor blocker, 7-amino-phosphono-heptanoic acid, was given prior to administration of FG-7142. When cats were subsequently given FG-7142 alone, the drug produced lasting behavioral changes like those reported previously. Flumazenil, a benzodiazepine receptor antagonist, reversed an increase in defensiveness produced by FG-7142 alone, replicating previous findings. The data are consistent with the hypothesis that NMDA-dependent long-term potentiation in limbic pathways subserving defensive response to threat mediates lasting increases in defensiveness produced by FG-7142.

Effects Of Social Networking Sites (SNSs) On Hyper Media Computer Mediated Environments (HCMEs)

OpenAIRE

Yoon C. Cho

2011-01-01

Social Networking Sites (SNSs) are known as tools to interact and build relationships between users/customers in Hyper Media Computer Mediated Environments (HCMEs). This study explored how social networking sites play a significant role in communication between users. While numerous researchers examined the effectiveness of social networking websites, few studies investigated which factors affected customers attitudes and behavior toward social networking sites. In this paper, the authors inv...

The Relations between Television Exposure and Executive Function in Chinese Preschoolers: The Moderated Role of Parental Mediation Behaviors

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Yang, Xiaohui; Chen, Zhe; Wang, Zhenhong; Zhu, Liqi

2017-01-01

The present study examined the relations between preschoolers’ television exposure and executive functions (EF). One hundred and nineteen 3- to 6-year-old children and their parents participated. Parents filled in a questionnaire regarding children’s television viewing time, television content and parental mediation behaviors about their child’s television viewing. The children were asked to finish six EF tasks, including the backward digit span task, the spatial span task, the boy–girl Stroop, the Simon task, the flanker task and the Tower of Hanoi task that assessed working memory, inhibition and planning, respectively. Children’s vocabulary was tested using Peabody Picture Vocabulary Test, and included as control variables in addition to socioeconomic status of the participated families. The results showed that television viewing time and child-directed educational programs were positively associated with EF. In addition, television content fully mediated the effect of television viewing time on EF and parental restrictive approach strategies moderated the effect of television viewing time on EF. PMID:29089912

Longitudinal associations between marital stress and externalizing behavior : Does Parental Sense of Competence Mediate Processes?

NARCIS (Netherlands)

van Eldik, W. M.; Prinzie, Peter; Dekovic, M.; de Haan, A.D.

2017-01-01

Ecological theories emphasize associations between children and elements within their family system, such as the marital relationship. Within a developmental perspective, we longitudinally examined (a) dynamic associations between marital stress and children’s externalizing behavior, (b) mediation

Delay Discounting Mediates Parent-Adolescent Relationship Quality and Risky Sexual Behavior for Low Self-Control Adolescents.

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Kahn, Rachel E; Holmes, Christopher; Farley, Julee P; Kim-Spoon, Jungmeen

2015-09-01

Parent-adolescent relationship quality and delay discounting may play important roles in adolescents' sexual decision making processes, and levels of self-control during adolescence could act as a buffer within these factors. This longitudinal study included 219 adolescent (55 % male; mean age = 12.66 years at Wave 1; mean age = 15.10 years at Wave 2) and primary caregiver dyads. Structural equation modeling (SEM) was utilized to determine whether delay discounting mediated the association between parent-adolescent relationship quality and adolescents' risky sexual behavior and how this mediated association may differ between those with high versus low self-control. The results revealed parent-adolescent relationship quality plays a role in the development of risky sexual behavior indirectly through levels of delay discounting, but only for adolescents with low self-control. These findings could inform sex education policies and health prevention programs that address adolescent risky sexual behavior.

TRH and TRH receptor system in the basolateral amygdala mediate stress-induced depression-like behaviors.

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Choi, Juli; Kim, Ji-eun; Kim, Tae-Kyung; Park, Jin-Young; Lee, Jung-Eun; Kim, Hannah; Lee, Eun-Hwa; Han, Pyung-Lim

2015-10-01

Chronic stress is a potent risk factor for depression, but the mechanism by which stress causes depression is not fully understood. To investigate the molecular mechanism underlying stress-induced depression, C57BL/6 inbred mice were treated with repeated restraint to induce lasting depressive behavioral changes. Behavioral states of individual animals were evaluated using the forced swim test, which measures psychomotor withdrawals, and the U-field test, which measures sociability. From these behavioral analyses, individual mice that showed depression-like behaviors in both psychomotor withdrawal and sociability tests, and individuals that showed a resiliency to stress-induced depression in both tests were selected. Among the neuropeptides expressed in the amygdala, thyrotropin-releasing hormone (TRH) was identified as being persistently up-regulated in the basolateral amygdala (BLA) in individuals exhibiting severe depressive behaviors in the two behavior tests, but not in individuals displaying a stress resiliency. Activation of TRH receptors by local injection of TRH in the BLA in normal mice produced depressive behaviors, mimicking chronic stress effects, whereas siRNA-mediated suppression of either TRH or TRHR1 in the BLA completely blocked stress-induced depressive symptoms. The TRHR1 agonist, taltirelin, injection in the BLA increased the level of p-ERK, which mimicked the increased p-ERK level in the BLA that was induced by treatment with repeated stress. Stereotaxic injection of U0126, a potent inhibitor of the ERK pathway, within the BLA blocked stress-induced behavioral depression. These results suggest that repeated stress produces lasting depression-like behaviors via the up-regulation of TRH and TRH receptors in the BLA. Copyright © 2015 Elsevier Ltd. All rights reserved.

The mediation of mothers' self-fulfilling effects on their children's alcohol use: self-verification, informational conformity, and modeling processes.

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Madon, Stephanie; Guyll, Max; Buller, Ashley A; Scherr, Kyle C; Willard, Jennifer; Spoth, Richard

2008-08-01

This research examined whether self-fulfilling prophecy effects are mediated by self-verification, informational conformity, and modeling processes. The authors examined these mediational processes across multiple time frames with longitudinal data obtained from two samples of mother-child dyads (N-sub-1 = 486; N-sub-2 = 287), with children's alcohol use as the outcome variable. The results provided consistent support for the mediational process of self-verification. In both samples and across several years of adolescence, there was a significant indirect effect of mothers' beliefs on children's alcohol use through children's self-assessed likelihood of drinking alcohol in the future. Comparatively less support was found for informational conformity and modeling processes as mediators of mothers' self-fulfilling effects. The potential for self-fulfilling prophecies to produce long-lasting changes in targets' behavior via self-verification processes are discussed. (c) 2008 APA, all rights reserved

Does age of onset of risk behaviors mediate the relationship between child abuse and neglect and outcomes in middle adulthood?

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Horan, Jacqueline M; Widom, Cathy Spatz

2015-03-01

Child maltreatment has been linked with a number of risk behaviors that are associated with long-lasting maladaptive outcomes across multiple domains of functioning. This study examines whether the ages of onset of four risk behaviors-sexual intercourse, alcohol use, drug use, and criminal behavior-mediate the relationship between child maltreatment and outcomes in middle adulthood among a sample of court-documented victims of child abuse/neglect and matched controls (N = 1,196; 51.7% female; 66.2% White, 32.6% Black). Adult outcomes included employment status, welfare receipt, internalizing symptoms of anxiety and depressive symptoms, substance use problems, and criminal arrests. The results indicated gender differences in these relationships. For females, age of onset of sexual intercourse mediated the relationship between child abuse/neglect and both internalizing symptoms and substance use problems in middle adulthood. For males, age at first criminal arrest mediated the relationship between child abuse/neglect and extensive involvement in the justice system in middle adulthood. Age of onset of alcohol use and drug use did not mediate the relationship between child abuse/neglect and middle adult outcomes. This study expands current knowledge by identifying associations between early initiation of risk behavior in one domain and later, continuing problems in different domains. Thus, early initiation of specific risk behaviors may have more wide-ranging negative consequences than are typically considered during intervention or treatment and strategies may need to target multiple domains of functioning.

The effect of negative experiences on delinquent behavior of youth in a social withdrawal situation.

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Chan, Gloria Hongyee; Lo, T Wing

2016-07-01

This study examines the relationship between negative experiences, negative emotions, and delinquent behavior among young people in a social withdrawal situation. There were 533 participants in this study and various quantitative analyses were utilized. Results showed that participants with a longer period of social withdrawal were generally less affected by negative experiences, while those with a higher level of social withdrawal were more affected by negative experiences, particularly negative relationships with other people. Also, both negative emotions and higher level of social withdrawal mediated the relationship between negative experiences and involvement in delinquent behavior, with negative emotions displaying a higher mediating effect. This reflects that the root of delinquent behavior is the negative experiences which arouse negative emotions, rather than the social withdrawal behavior itself. Results imply that practitioners should first explore the negative experiences suffered by these young people, so as to provide them the most appropriate support. Copyright © 2016 The Foundation for Professionals in Services for Adolescents. Published by Elsevier Ltd. All rights reserved.

Identity as a Moderator and Mediator of Communication Effects: Evidence and Implications for Message Design.

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Comello, Maria Leonora G; Farman, Lisa

2016-10-02

Advertisements, movies, and other forms of media content have potential to change behaviors and antecedent psychological states by appealing to identity. However, the mechanisms that are responsible for persuasive effects of such content have not been adequately specified. A recently proposed model of communication effects (the prism model) advances the study of mechanisms and argues that identity can serve as both a moderator and mediator of communication effects on behavior-relevant outcomes. These intervening roles are made possible by the complex nature of identity (including multiple self-concepts and sensitivity to cues) and messages that cue the importance of and activate particular self-concepts. This article builds on development of the model by presenting empirical support based on re-analysis of an experiment in which participants viewed either a more-stigmatizing or less-stigmatizing portrayal of a recovering drug addict. In line with the model's propositions, exposure to the less-stigmatizing condition led to increases in perspective taking which then led to more acceptance (mediation by identity), while level of perspective taking also changed the effect of condition on acceptance (moderation by identity). These results provide support for the model's proposition of simultaneous intervening roles. The authors discuss implications for strategic communication research and practice.

The Mediation of Mothers’ Self-Fulfilling Effects on Their Children’s Alcohol Use: Self-Verification, Informational Conformity and Modeling Processes

Science.gov (United States)

Madon, Stephanie; Guyll, Max; Buller, Ashley A.; Scherr, Kyle C.; Willard, Jennifer; Spoth, Richard

2010-01-01

This research examined whether self-fulfilling prophecy effects are mediated by self-verification, informational conformity, and modeling processes. The authors examined these mediational processes across multiple time frames with longitudinal data obtained from two samples of mother – child dyads (N1 = 487; N2 = 287). Children’s alcohol use was the outcome variable. The results provided consistent support for the mediational process of self-verification. In both samples and across several years of adolescence, there was a significant indirect effect of mothers’ beliefs on children’s alcohol use through children’s self-assessed likelihood of drinking alcohol in the future. Comparatively less support was found for informational conformity and modeling processes as mediators of mothers’ self-fulfilling effects. The potential for self-fulfilling prophecies to produce long lasting changes in targets’ behavior via self-verification processes are discussed. PMID:18665708

Prediction of Risk Behaviors in HIV-infected Patients Based on Family Functioning: The Mediating Roles of Lifestyle and Risky Decision Making

Directory of Open Access Journals (Sweden)

Fariba Ebrahim Babaei

2017-09-01

Full Text Available Background and Objective: Risk behaviors are more common in the HIV-positive patients than that in the general population. These behaviors are affected by various factors, such as biological, familial, and social determinants, peer group, media, and lifestyle. Low family functioning is one of the important factors predicting risk behaviors. Regarding this, the present study aimed to investigate the role of family functioning in predicting risk behaviors in the HIV-infected patients based on the mediating roles of risky decision making and lifestyle. Materials and Methods: This descriptive correlational study was conducted on 147 HIV-positive patients selected through convenience sampling technique. The data were collected using the health promoting lifestyle profile-2 (HPLP-2, family adaptability and cohesion scale IV (FACES-IV, balloon analogue risk task (BART, and risk behavior assessment in social situation. The data were analyzed using structural equation modeling method in LISREL 8.8 software. Results: According to the results, there was an indirect relationship between family functioning and risk behaviors. Furthermore, family functioning both directly and indirectly affected the risk behaviors through two mediators of lifestyle and risky decision making. Conclusion: As the findings indicated, family functioning directly contributed to risk behaviors. Moreover, this variable indirectly affected risk behaviors through the mediating roles of risky decision making and lifestyle. Consequently, the future studies should focus more deeply on family functioning role in the risk behaviors of the HIV-infected patients.

Communication, Reasoning, and Planned Behaviors: Unveiling the Effect of Interactive Communication in an Anti-Smoking Social Media Campaign.

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Namkoong, Kang; Nah, Seungahn; Record, Rachael A; Van Stee, Stephanie K

2017-01-01

This study examines direct and indirect effects of interactive communication in an antismoking social media campaign. To that end, we pose a multitheoretical framework that integrates communication mediation models and the Theory of Planned Behavior. To test the theorized model, we conducted an experiment using a two-group pretest-posttest design. Participants (N = 201) were randomly assigned into two experimental conditions: "campaign message reception only" as a control group and "message reception and social interaction" as a treatment group, in which the participants contributed to the antismoking campaign by posting their own campaign ideas and information they found through mediated and interpersonal communication. The findings show that interactive communication catalyzes the participants' information searching behaviors through diverse communication channels. In turn, increased media use plays a crucial role in changing their attitudes and perceived social norms about smoking behaviors, and eventually reducing smoking intention. This study affirms that the theory of planned behavior is effective in predicting behavioral intention and demonstrates the usefulness of a multitheoretical approach in interactive campaign research on social media.

Entrepreneurs Experience and Firm Innovativeness: Multiple Mediation of Attitudinal and Behavioral Competencies

OpenAIRE

Bernard Nassiuma; Jamin Masasabi; Denyse Snelder; Anne Nangulu

2018-01-01

This study was anchored on a postpositivism paradigm and the Theory of perceived attributes and individual innovativeness, regarding the multiple serial mediations of attitudinal and behavioral competencies in the relationship between the entrepreneurs’ experience and firm innovativeness. To test the hypothesized relationship a cross-sectional design and qualitative approach were employed. The study drew on a sample of 698 Micro and Small-scale entrepreneurs in Western Kenya. Questionnaires ...

变革型领导与创新行为：一个被调节的中介作用模型%Transformational Leadership for Creative Behavior:A Moderated Mediation Effect Model

Institute of Scientific and Technical Information of China (English)

陈晨; 时勘; 陆佳芳

2015-01-01

以认知机制和内在动机理论为基础，探究在科研团队中变革型领导对下属成员创新行为的影响及其内在作用机制。采用问卷调查方法，对中国科学院所属学部内科研团队中的领导者及其直属下属进行调研。由下属完成员工问卷（包括变革型领导、心理授权、工作复杂性），领导者对其下属的创新行为进行评价，共获得79名领导者和237名科研人员的配对数据，采用Mplus软件进行统计分析。研究结果表明，在科研团队中，变革型领导对其下属的创新行为有显著正向影响；下属的心理授权在变革型领导和下属创新行为间起中介作用；下属所从事工作的复杂性对变革型领导硳心理授权硳下属创新行为这一中介作用有正向调节作用，即工作复杂性较高时，变革型领导通过心理授权影响下属创新行为的正向中介作用显著，而工作复杂性较低时该中介作用不显著。%Researcher′creative behavior has received considerable attention from researchers as an important source of scientific team′s innovation.It is of great importance to understand the factors affecting researcher′individual creative behavior.However, some studies find that transformational leadership is not correlated, even negative correlated with followers′creative behavior. Given the inconsistent findings about the relationship between transformational leadership and followers′creative behavior in pre-vious research, we propose that mediating and moderating variables may help us better understand the dynamics between transfor-mational leadership and individual creative behavior.For this reason, this study aims at refining the effect of transformational leadership on followers′creative behavior and the mechanism between these two variables in teams of researchers. On the basis of recognition mechanism and intrinsic motivation theory, this study investigates the influence

A Moderated Mediation Model of the Relationship between Organizational Citizenship Behaviors and Job Performance

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Ozer, Muammer

2011-01-01

Addressing numerous calls for future research on understanding the theoretical mechanisms that explain the relationship between organizational citizenship behaviors (OCBs) and job performance, this study focused on how an employee's relationships with coworkers mediate the relationship between his or her OCBs and his or her job performance. It…

Compulsory citizenship behavior and organizational citizenship behavior: the role of organizational identification and perceived interactional justice.

Science.gov (United States)

Zhao, Hongdan; Peng, Zhenglong; Chen, Hsiu-Kuei

2014-01-01

This article examines the psychological mechanism underlying the relationship between compulsory citizenship behavior (CCB) and organizational citizenship behavior (OCB) by developing a moderated mediation model. The model focuses on the mediating role of organizational identification and the moderating role of interactional justice in influencing the mediation. Using a time-lagged research design, the authors collected two waves of data from 388 supervisor-subordinate dyads in 67 teams to test the moderated mediation model. Results revealed that CCB negatively influenced OCB via impairing organizational identification. Moreover, interactional justice moderated the strength of the indirect effect of CCB on OCB (through organizational identification), such that the mediated relationship was stronger under low interactional justice than under high interactional justice.

The Effects Of Leadership Styles On Goal Clarity And Fairness Mediated Used Performance Measure

OpenAIRE

Amris Rusli Tanjung; Yesi Mutia Basri

2017-01-01

This paper investigate the effects of superiors performance evaluation behaviors on subordinates work-related attitudes mediated used performance measure. We used leadership style initiating structure and consideration and performance measure use objective and subjective measures on managerial work related attitudes goal clarity and evaluation fairness. We test our hypotheses using survey data from 56 middle-level managers in 4 services organizations. The results from Structural Equation Mode...

Applying Adult Behavior Change Theory to Support Mediator-Based Intervention Implementation

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Sanetti, Lisa M. H.; Kratochwill, Thomas R.; Long, Anna C. J.

2013-01-01

A majority of evidence-based interventions in schools are delivered through consultation models and are implemented by a mediator, such as a teacher. Research indicates that mediators do not always adequately implement adopted evidence-based interventions, limiting their effectiveness in transforming student outcomes. We propose that to transform…

Social cognitive mediators of parent-child sexual communication.

Science.gov (United States)

Evans, W Douglas; Blitstein, Jonathan L; Davis, Kevin C

2011-07-01

To test a social cognitive behavior change model and identify mediators of the effects of the Parents Speak Up National Campaign (PSUNC) on parent-child sexual communication. Investigators used 5 waves of data from an online randomized controlled trial. Latent variables were developed based on item response theory and confirmatory factor analysis. Structural equation modeling was used to test mediation. Outcome expectations mediated effects of social norms and self-efficacy on sexual communication. Other hypothesized mediators were not confirmed. Interventions to promote parent-child sexual communication should target outcome expectations. Future research should investigate parents' health information seeking.

The effect analysis of mediation variable of task productivity on the self-efficacy and employees’ performance

Directory of Open Access Journals (Sweden)

Annissa Chairum Soebandono

2016-11-01

Full Text Available This research was conducted for analyzing the effect of mediating variable that is individual task proactivity as one of the proactivities of behavior towards the relationship between self-efficacy and the employees’ performance in the logistics companies of shipping the goods. It uses convenience sampling, which is a non-probability sampling method for getting the sample of 52 employees. They were divided into two divisions, namely infrastructure and quality assurance. The questionnaire consists of two parts, in which some were assessed by themselves and others that were assessed by the supervisor. They were analyzed using path analysis using analytical tools developed by Hayes, Preacher-Hayes with the simple mediation models. It was found that employees have self-efficacy, individual task proactivity, and relatively high performance, in which individual task proactivity can be a mediating variable on the effect self-efficacy on performance.

The influence of passion and empowerment on organizational citizenship behavior of teachers mediated by organizational commitment

OpenAIRE

Cheasakul, Uree; Varma, Parvathy

2016-01-01

Abstract: The present research aims to study the direct and indirect influence of passion and empowerment on organizational citizenship behavior of teachers in a private university in Thailand mediated by organizational commitment. The sample comprises 124 teachers teaching in the university and the Organizational Citizenship Behavior Scale, adapted by Podsakoff and Mackenzie (1990), Passion Scale, developed by Vallerand, Carbonneau, Fernet and Guay (2008), School Participant Empowerment Scal...

Adolescent-parent attachment as a mediator of relations between parenting and adolescent social behavior and wellbeing in China.

Science.gov (United States)

Cai, Mengfei; Hardy, Sam A; Olsen, Joseph A; Nelson, David A; Yamawaki, Niwako

2013-01-01

The purpose of this study was to examine links between parenting dimensions (authoritative parenting, psychological control, and parental authority) and adolescent wellbeing (self-esteem, autonomy, and peer attachments) as mediated by parent-teen attachment, among Chinese families. The sample included 298 Chinese adolescents, ages 15-18 years (M(age) = 16.36, SD = .68; 60% female). The mediation model was examined using path analyses (one model with parental authority as overprotection, and one with it as perceived behavioral control). To improve model fit a direct path was added from authoritative parenting to autonomy. Authoritative parenting was positively predictive of attachment, while psychological control and overprotection (but not behavioral control) were negative predictors. In turn, adolescent-parent attachment was positively related to the three outcomes. Lastly, the model paths did not differ by adolescent gender. These findings suggest that parenting behaviors may play a crucial role in adolescent social behaviors and wellbeing via adolescent-parent attachment.

Family Communication Patterns and Relational Maintenance Behavior: Direct and Mediated Associations with Friendship Closeness

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Ledbetter, Andrew M.

2009-01-01

In this study, both face-to-face and online relational maintenance behaviors were tested as mediators of family communication patterns and closeness with a same-sex friend. Participants included 417 young adults recruited from communication courses at a large university in the Midwestern United States. The obtained structural model demonstrated…

Mediated Moderation in Combined Cognitive Behavioral Therapy versus Component Treatments for Generalized Anxiety Disorder

Science.gov (United States)

Newman, Michelle G.; Fisher, Aaron J.

2013-01-01

Objective: This study examined (a) duration of generalized anxiety disorder (GAD) as a moderator of cognitive behavioral therapy (CBT) versus its components (cognitive therapy and self-control desensitization) and (b) increases in dynamic flexibility of anxious symptoms during the course of psychotherapy as a mediator of this moderation. Degree of…

Mediated moderation in combined cognitive behavioral therapy versus component treatments for generalized anxiety disorder.

Science.gov (United States)

Newman, Michelle G; Fisher, Aaron J

2013-06-01

This study examined (a) duration of generalized anxiety disorder (GAD) as a moderator of cognitive behavioral therapy (CBT) versus its components (cognitive therapy and self-control desensitization) and (b) increases in dynamic flexibility of anxious symptoms during the course of psychotherapy as a mediator of this moderation. Degree of dynamic flexibility in daily symptoms was quantified as the inverse of spectral power due to daily to intradaily oscillations in four-times-daily diary data (Fisher, Newman, & Molenaar, 2011). This was a secondary analysis of the data of Borkovec, Newman, Pincus, and Lytle (2002). Seventy-six participants with a principle diagnosis of GAD were assigned randomly to combined CBT (n = 24), cognitive therapy (n = 25), or self-control desensitization (n = 27). Duration of GAD moderated outcome such that those with longer duration showed greater reliable change from component treatments than they showed from CBT, whereas those with shorter duration fared better in response to CBT. Decreasing predictability in daily and intradaily oscillations of anxiety symptoms during therapy reflected less rigidity and more flexible responding. Increases in flexibility over the course of therapy fully mediated the moderating effect of GAD duration on condition, indicating a mediated moderation process. Individuals with longer duration of GAD may respond better to more focused treatments, whereas those with shorter duration of GAD may respond better to a treatment that offers more coping strategies. Importantly, the mechanism by which this moderation occurs appears to be the establishment of flexible responding during treatment.

Does mediator use contribute to the spacing effect for cued recall? Critical tests of the mediator hypothesis.

Science.gov (United States)

Morehead, Kayla; Dunlosky, John; Rawson, Katherine A; Bishop, Melissa; Pyc, Mary A

2018-04-01

When study is spaced across sessions (versus massed within a single session), final performance is greater after spacing. This spacing effect may have multiple causes, and according to the mediator hypothesis, part of the effect can be explained by the use of mediator-based strategies. This hypothesis proposes that when study is spaced across sessions, rather than massed within a session, more mediators will be generated that are longer lasting and hence more mediators will be available to support criterion recall. In two experiments, participants were randomly assigned to study paired associates using either a spaced or massed schedule. They reported strategy use for each item during study trials and during the final test. Consistent with the mediator hypothesis, participants who had spaced (as compared to massed) practice reported using more mediators on the final test. This use of effective mediators also statistically accounted for some - but not all of - the spacing effect on final performance.

Orexin-A/Hypocretin-1 Mediates Cocaine-Seeking Behavior in the Posterior Paraventricular Nucleus of the Thalamus via Orexin/Hypocretin Receptor-2.

Science.gov (United States)

Matzeu, Alessandra; Kerr, Tony M; Weiss, Friedbert; Martin-Fardon, Rémi

2016-11-01

Orexin/hypocretin (Orx/Hcrt) projections from the lateral hypothalamus to the paraventricular nucleus of the thalamus (PVT) are implicated in drug addiction. Specifically, the posterior section of the PVT (pPVT) innervates brain structures that modulate motivated behavior. This study investigated the role of pPVT-Orx/Hcrt transmission in cocaine-seeking behavior. Because the effects of Orx/Hcrt are mediated by two Orx/Hcrt receptors (Hcrt-r1 and Hcrt-r2), we examined the extent to which Hcrt-r1 and Hcrt-r2 are involved in Orx/Hcrt-induced cocaine seeking. Male Wistar rats were made cocaine dependent by self-administering cocaine 6 hours/day (long access) for 21 days. After self-administration training, the rats underwent daily extinction training, during which cocaine was withheld. After extinction, the rats were injected into the pPVT with Orx-A/Hcrt-1 (0-2 µg) alone or, using a single dose of 0.5 µg, in combination with an Hcrt-r1 antagonist (SB334867; 0-15 µg) or an Hcrt-r2 antagonist (TCSOX229; 0-15 µg). Orx-A/Hcrt-1 alone reinstated (primed) cocaine seeking. Unexpectedly, coadministration of Orx-A/Hcrt-1 with SB334867 did not have any effects on Orx-A/Hcrt-1-induced reinstatement, whereas when coadministered with Orx-A/Hcrt-1, TCSOX229 prevented cocaine-seeking behavior. These results indicate that Hcrt-r2 in the pPVT mediates the reinstating effect of Orx-A/Hcrt-1 in animals with a history of cocaine dependence and further identify Hcrt-r2 as a possible molecular target that can guide future therapeutic approaches for the prevention of drug-seeking behavior. Copyright © 2016 by The American Society for Pharmacology and Experimental Therapeutics.