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Behavior Research Methods Mar 2024Research questions regarding how, for whom, and where a treatment achieves its effect on an outcome have become increasingly valued in substantive research. Such...
Research questions regarding how, for whom, and where a treatment achieves its effect on an outcome have become increasingly valued in substantive research. Such questions can be answered by causal moderated mediation analysis, which assesses the heterogeneity of the mediation mechanism underlying the treatment effect across individual and contextual characteristics. Various moderated mediation analysis methods have been developed under the traditional path analysis/structural equation modeling framework. One challenge is that the definitions of moderated mediation effects depend on statistical models of the mediator and the outcome, and no solutions have been provided when either the mediator or the outcome is binary, or when the mediator or outcome model is nonlinear. In addition, it remains unclear to empirical researchers how to make causal arguments of moderated mediation effects due to a lack of clarifications of the underlying assumptions and methods for assessing the sensitivity to violations of the assumptions. This article overcomes the limitations by developing general definition, identification, estimation, and sensitivity analysis for causal moderated mediation effects under the potential outcomes framework. We also developed a user-friendly R package moderate.mediation ( https://cran.r-project.org/web/packages/moderate.mediation/index.html ) that allows applied researchers to easily implement the proposed methods and visualize the initial analysis results and sensitivity analysis results. We illustrated the application of the proposed methods and the package implementation with a re-analysis of the National Evaluation of Welfare-to-Work Strategies (NEWWS) Riverside data.
Topics: Humans; Software; Models, Statistical; Causality
PubMed: 37845423
DOI: 10.3758/s13428-023-02095-4 -
BMC Psychology Sep 2023A growing body of literature demonstrates that social media usage has witnessed a rapid increase in higher education and is almost ubiquitous among young people. The...
BACKGROUND
A growing body of literature demonstrates that social media usage has witnessed a rapid increase in higher education and is almost ubiquitous among young people. The underlying mechanisms as to how social media usage by university students affects their well-being are unclear. Moreover, current research has produced conflicting evidence concerning the potential effects of social media on individuals' overall well-being with some reporting negative outcomes while others revealing beneficial results.
METHODS
To address the research gap, the present research made an attempt to investigate the crucial role of social media in affecting students' psychological (PWB) and subjective well-being (SWB) by testing the mediating role of self-esteem and online social support and the moderation effect of cyberbullying. The data in the study were obtained from a sample of 1,004 college students (483 females and 521 males, M = 23.78, SD = 4.06) enrolled at 135 Chinese universities. AMOS 26.0 and SPSS 26.0 as well as the Process macro were utilized for analyzing data and testing the moderated mediation model.
RESULTS
Findings revealed that social media usage by university students was positively associated with their PWB and SWB through self-esteem and online social support, and cyberbullying played a moderating role in the first phase of the mediation process such that the indirect associations were weak with cyberbullying reaching high levels.
CONCLUSION
These findings highlight the importance of discerning the mechanisms moderating the mediated paths linking social media usage by young adults to their PWB and SWB. The results also underline the importance of implementing measures and interventions to alleviate the detrimental impacts of cyberbullying on young adults' PWB and SWB.
Topics: Adult; Female; Humans; Male; Young Adult; Asian People; Evidence Gaps; Self Concept; Social Media; Social Support; Internet Use; Students; Universities; Cyberbullying; China; Mental Health
PubMed: 37737198
DOI: 10.1186/s40359-023-01311-2 -
Clinical Psychology Review Apr 2024Neurobiological information - including executive functioning - is increasingly relevant for forensic clinical practice, as well as for the criminal justice system.... (Meta-Analysis)
Meta-Analysis Review
Neurobiological information - including executive functioning - is increasingly relevant for forensic clinical practice, as well as for the criminal justice system. Previous meta-analyses report that antisocial populations show impaired performance on executive functioning tasks, but these meta-analyses are outdated, have limitations in their methodological approach, and are therefore in need of an update. The current multi-level meta-analysis including 133 studies (2008-2023) confirms impaired performance in executive functioning (d=.42), but studies are heterogeneous. Several moderator analyses showed that neuropsychological test used, type of executive function component, and control group characteristics moderated the overall effect. Specifically, matching psychiatric problems in the non-antisocial control group eliminated any differences in executive functioning between groups. No moderation effects were found for assessment quality, hot or cold executive functions, and various population characteristics. These results could indicate that the assessment of executive functioning in antisocial populations may be less relevant for recidivism risk assessment than thought, although this should first be assessed in prospective longitudinal studies. Executive functioning could potentially be used to identify or screen for individuals with certain treatment needs or be used as a responsivity factor, especially in disorders which are often underdiagnosed in criminal justice settings.
Topics: Humans; Executive Function; Antisocial Personality Disorder; Prospective Studies; Recidivism; Risk Assessment
PubMed: 38430781
DOI: 10.1016/j.cpr.2024.102408 -
Research on Child and Adolescent... Nov 2023Studies examining the associations between adolescent social media use and depression/anxiety symptoms show inconsistent results and do not elucidate the direction of...
Studies examining the associations between adolescent social media use and depression/anxiety symptoms show inconsistent results and do not elucidate the direction of associations. Differences in how studies operationalize social media use and consider potential moderating effects of sex and extraversion could contribute to inconsistencies. A distinction has been made between three types of social media use: passive, active and problematic. This study examined longitudinal associations between these types of adolescents' social media use and depression/anxiety symptoms and moderation effects of sex or extraversion. At ages 13 (T1) and 14 (T2), 257 adolescents completed an online questionnaire regarding their depression and anxiety symptoms and problematic social media use as well as three social media use diaries. Cross-lagged panel modeling (CLPM) revealed a positive association between problematic use and later anxiety symptoms (β = .16, p = .010). Extraversion moderated the association between active use and anxiety (β = -.14, p = .032). Specifically, active use predicted higher subsequent anxiety symptoms only in adolescents with low to moderate levels of extraversion. No sex moderation was found. While social media use (active or problematic) predicted later anxiety symptoms (but not depression), the reverse was not the case. However, highly extraverted individuals seem to be less vulnerable to potential negative effects of social media use.
Topics: Humans; Adolescent; Social Media; Depression; Longitudinal Studies; Anxiety; Anxiety Disorders
PubMed: 37294375
DOI: 10.1007/s10802-023-01084-7 -
Psychological Medicine Oct 2023Childhood maltreatment can result in lifelong psychological and physical sequelae, including coronary artery disease (CAD). Mechanisms leading to increased risk of...
BACKGROUND
Childhood maltreatment can result in lifelong psychological and physical sequelae, including coronary artery disease (CAD). Mechanisms leading to increased risk of illness may involve emotional dysregulation and shortened leukocyte telomere length (LTL).
METHODS
To evaluate whether (1) childhood maltreatment is associated with shorter LTL among older adults with CAD or other chronic illnesses; (2) sex and/or CAD status influence these results; and (3) symptoms of anxiety, depression, and stress moderate or mediate the association between childhood maltreatment and LTL, men and women ( = 1247; aged 65 ± 7.2 years) with and without CAD completed validated questionnaires on childhood maltreatment, symptoms of depression, anxiety, and perceived stress. LTL was measured using quantitative polymerase chain reaction. Analyses included bivariate correlations, hierarchical regressions, and moderation/mediation analyses, controlling for sociodemographic and lifestyle variables.
RESULTS
Childhood maltreatment was associated with significantly shorter LTL ( = -0.059, = 0.038, = -0.016, = 0.005). This relation was not moderated by depression, anxiety, nor perceived stress, though there was mitigated evidence for absence of a maltreatment-LTL relation in men with CAD. Stress perception (but not anxiety or depression) partially mediated the relation between childhood maltreatment and LTL [Indirect effect, = -0.0041, s.e. = 0.002, 95% CI (-0.0085 to -0.0002)].
CONCLUSIONS
Childhood maltreatment was associated with accelerated biological aging independently of patient characteristics. Emotional dysregulation resulting in chronic stress may contribute to this process. Whether stress management or other interventions may help prevent or slow premature aging in those who have suffered maltreatment requires study.
Topics: Male; Humans; Female; Aged; Child; Aging; Coronary Artery Disease; Chronic Disease; Leukocytes; Telomere; Child Abuse
PubMed: 36943406
DOI: 10.1017/S0033291722003543 -
Autism Research : Official Journal of... Nov 2023The wider stress literature points to negative associations between stress and well-being. Similarly, the use of engagement coping strategies and disengagement coping...
The wider stress literature points to negative associations between stress and well-being. Similarly, the use of engagement coping strategies and disengagement coping strategies in the face of stress are related to improved and reduced well-being respectively. However, in the autistic population stress and coping research is limited to date, and the extent to which coping may moderate the relationship between stress and well-being is not known. Using data from an Australian online study, we explored the potential moderating (i.e. buffering or exacerbating) role of coping in the relationship between stress and well-being in a sample of autistic adults (N = 86). Our findings indicated that increased stress was associated with lower well-being. Further, moderation analyses showed that while both engagement coping (e.g. problem solving, positive appraisal) and disengagement coping (e.g., self-distraction, being in denial) strategies had significant positive and negative direct effects on well-being respectively; engagement coping also moderated the relationship between stress and well-being, buffering the impact of stress on well-being. Our results illustrate the different underlying mechanisms by which coping strategies may be associated with stress and well-being. They also highlight the potential protective role of engagement coping strategies, which can be incorporated into the promotion and maintenance of well-being in autistic adults.
Topics: Humans; Adult; Autistic Disorder; Surveys and Questionnaires; Australia; Autism Spectrum Disorder; Adaptation, Psychological
PubMed: 37698532
DOI: 10.1002/aur.3028 -
Journal of Affective Disorders Nov 2023Rewarding beauty has never fallen out of vogue in human history. Attractive people enjoy many social and economic advantages. This study aims to investigate the...
Rewarding beauty has never fallen out of vogue in human history. Attractive people enjoy many social and economic advantages. This study aims to investigate the relationship between physical attractiveness and depression and its potential mechanism among Chinese residents. A population-based data including 12,172 Chinese adults from 3 waves of CFPS (2012, 2016, 2020) were used. Moderated-mediation models were utilized to assess the mediation effect of unfair experiences and the moderation effect of socioeconomic-status (SES), in the linkage between physical attractiveness and depression. Firstly, our results demonstrated that physical attractiveness is negatively associated with depression. Secondly, the effect of unfair experiences as a mediator between physical attractiveness and depression is statistically significant. Lastly, socioeconomic status (SES) performs a crucial moderating role. Among Chinese residents, the mitigating effect of physical attractiveness on unfair experiences and depression would be stronger among those with a lower SES compared to those with a higher SES.
Topics: Adult; Humans; Depression; Mediation Analysis; Social Class; China; Beauty
PubMed: 37572706
DOI: 10.1016/j.jad.2023.08.043 -
Traumatology Dec 2023There is an established association between posttrauma symptom severity (PTSS) and attachment insecurity (anxiety and avoidance). However, few studies have examined this...
There is an established association between posttrauma symptom severity (PTSS) and attachment insecurity (anxiety and avoidance). However, few studies have examined this association among community samples of trauma-exposed individuals and identified factors that might moderate these associations. We sought to (a) replicate existing associations between PTSS and attachment insecurity in a community sample of trauma survivors and (b) determine the potential moderating role of support-seeking and coping behaviors. Our sample included 824 trauma-exposed individuals ( = 31.6, = 20.0; = 37.4, = 13.2; 69.3% female; 79.1% White; 77.2% heterosexual). Participants completed an online survey via Amazon Mechanical Turk. Linear regression and moderation analyses tested the association between PTSS and attachment insecurity and whether support-seeking and coping behaviors moderated these associations. PTSS was positively associated with global attachment anxiety (β = .48, 95% confidence interval [.42, .54]) and global attachment avoidance (β = .06, [.15, .29]). The association between PTSS and attachment avoidance was weaker for people who reported greater instrumental and emotional support-seeking or greater active coping. This study provides evidence for the association between PTSS and attachment insecurity. Findings underscore the need to understand causal mechanisms underlying this association and critically evaluate how existing and future interventions can buffer attachment insecurity in trauma-exposed individuals.
PubMed: 38384933
DOI: 10.1037/trm0000407 -
The Journal of Adolescent Health :... Jan 2024Social media use has increased rapidly during the past decade, raising concerns about adolescents who display problematic social media use (PSMU), as indicated by... (Observational Study)
Observational Study
PURPOSE
Social media use has increased rapidly during the past decade, raising concerns about adolescents who display problematic social media use (PSMU), as indicated by addiction-like symptoms (e.g., preoccupation, tolerance). We aimed to assess the extent to which an individual resource (health literacy), and social resources (friend support and family support), moderated the association between a range of individual characteristics (gender, age, family affluence, and depressive feelings) and PSMU; also the association between PSMU and health outcomes (self-rated health, life satisfaction, and sleep difficulties), both cross-nationally and nationally.
METHODS
Our sample included 22,226 adolescents from six European countries. We used data from the Health Behaviour in School-aged Children cross-sectional survey (2017/2018). Random-effects models and moderator analyses were applied.
RESULTS
Six moderations were found, with the resources moderating the association between individual characteristics and PSMU. One moderation emerged cross-nationally, namely that a higher level of family support was associated with a lower likelihood of PSMU, especially among adolescents who did not have frequent depressive feelings. In addition, five national moderations were identified. For example, a higher level of health literacy was associated with a lower likelihood of PSMU among Finnish girls. The resources were also found to moderate the association between PSMU and health outcomes, with two moderations emerging cross-nationally. For instance, a higher level of family support was related to higher self-rated health, especially among problematic users. In addition, nine national moderations were identified; these included a higher level of health literacy being associated with having less sleep difficulties, especially among problematic users in Germany.
DISCUSSION
In adolescence, health literacy, family support, and friend support have the potential to moderate the association between individual characteristics and PSMU, and between PSMU and health outcomes, cross-nationally and nationally. We recommend the use of universal and targeted interventions to promote individual and social resources to counteract PSMU.
Topics: Child; Female; Humans; Adolescent; Social Media; Cross-Sectional Studies; Europe; Behavior, Addictive; Sleep Initiation and Maintenance Disorders
PubMed: 37777950
DOI: 10.1016/j.jadohealth.2023.07.026 -
Journal of Affective Disorders Nov 2023Anxiety-related disorders are among the most prevalent psychiatric conditions and cause significant impairment. Intolerance of uncertainty (IU) contributes to the... (Meta-Analysis)
Meta-Analysis Review
OBJECTIVE
Anxiety-related disorders are among the most prevalent psychiatric conditions and cause significant impairment. Intolerance of uncertainty (IU) contributes to the emergence, maintenance, and symptom severity of anxiety-related disorders, yet information regarding treatment-related changes in IU is limited. This systematic review and meta-analysis examined the efficacy of evidence-based treatments for anxiety-related disorders on IU, explored factors moderating treatment effects of IU, and examined whether therapeutic improvement in IU corresponded with improvements in anxiety symptom severity.
METHODS
PubMED and PsycINFO were searched for randomized controlled trials (RCTs) using the terms "intolerance of uncertainty" AND "treatment" OR "therapy." Data for pre and post-treatment measures and patient, intervention, and trial-level characteristics were extracted from 28 RCTs. Separate random effects models examined the treatment efficacy of interventions on IU and symptom severity. Moderators of therapeutic effects were analyzed via method-of-moments meta-regression or an analog to the analysis of variance.
RESULTS
Across RCTs, interventions exhibited a large therapeutic effect on IU compared to control conditions (g = 0.89). Treatment effects on IU positively corresponded with improved symptom severity and accounted for 36 % of the variance. Interestingly, comorbid depression and certain treatment approaches were associated with larger improvements in IU.
CONCLUSION
Evidence-based treatments are effective in improving IU, highlighting the importance of IU in the treatment of anxiety-related disorders. Moderator analyses identified patient and intervention-level factors to inform approaches to improve therapeutic effects on IU. Future research is needed to optimize interventions targeting IU and evaluate long-term efficacy of interventions on IU for anxiety-related disorders.
Topics: Humans; Uncertainty; Anxiety; Anxiety Disorders
PubMed: 37657623
DOI: 10.1016/j.jad.2023.08.132