The Use of Longitudinal Mediation Models for Testing Causal Effects and Measuring Direct and Indirect Effects

Turnes, Paloma Bernal; Ernst, Ricardo

doi:10.17265/1537-1514/2016.01.001

Cited by 9 publications

(6 citation statements)

References 19 publications

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“…The mediation of perceived self-efficacy shows that the effect of daily stress on mental health is modified through selfappraisal and interpretation processes. Considering an important prerequisite for mediation analyses (Turnes & Ernst, 2016), we assessed the variables across a period of two years in three measurements. This extends previous cross-sectional research on the mediation effect of self-efficacy (Scho¨nfeld et al, 2016).…”

Section: Discussionmentioning

confidence: 99%

“…This allows the assumption whether the measures of the constructs, that is, the hypothesized model, are consistent with the data in order to ensure that the instruments we used assess the same constructs at three different points in time. As recommended by Turnes and Ernst (2016) we, second, estimated total, direct, and indirect effects in longitudinal mediation models using three waves of measurement and two time intervals in order to elucidate of how the process of effects causes future outcomes. Reducing the unbiased estimations in the parameters of cross-sectional data, this analysis enables the estimation of changes at the interindividual level (Selig & Preacher, 2009).…”

Section: Present Studymentioning

confidence: 99%

“…Positive mental health and symptoms of depression, anxiety, and stress (DASS-21) separately served as dependent variables. Total, direct, and indirect effects with 95% bootstrap CIs (N ¼ 5000) were then calculated (Cheung, 2007;Hayes & Preacher, 2014;Turnes & Ernst, 2016).…”

Section: Statistical Analysesmentioning

confidence: 99%

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Self-Efficacy as a Mechanism Linking Daily Stress to Mental Health in Students: A Three-Wave Cross-Lagged Study

et al. 2018

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Background and Objectives While stress is generally well established to be predictive for different indicators of mental health, little is known about the longitudinal effects of daily life stressors and the role of self-evaluation factors. We tested whether perceived general self-efficacy is a mediator for the association between daily life stressors and psychopathological symptoms as well as subjective well-being. Methods Data derived from 2160 Chinese university students was assessed at three time points with one-year intervals. We used the Brief Daily Stressor Screening, the General Self-Efficacy Scale, the Positive Mental Health Scale, and the Depression Anxiety and Stress Scales. Total, direct, and indirect effects were estimated using 95% bootstrapped confidence intervals and structural equation modeling. Results Latent variable mediation analyses showed that daily stressors were associated with increased symptoms of depression, anxiety, and stress and with decreased subjective well-being. All cross-lagged mediational paths via self-efficacy were significant in predicting positive and negative mental health. Conclusions Considering stress of daily life as well as including the two dimensions of mental health may be important for future research and practice. This study provides novel evidence for mediating stress effects by perceived self-efficacy, which should be focused in intervention- and prevention-based approaches.

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Section: Discussionmentioning

confidence: 99%

Section: Present Studymentioning

confidence: 99%

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Self-Efficacy as a Mechanism Linking Daily Stress to Mental Health in Students: A Three-Wave Cross-Lagged Study

et al. 2018

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“…When we selected subcortical structural regions to be included in the mediation analyses, we set the cutoff for significance with p < 0.05. To examine the mediation effect of subcortical structure on the association of PiB or lacunes with cognitive function, we performed linear mixed effects modeling instead of structural equation models or path analysis because mediators (subcortical structure), independent variables (PiB SUVR/number of lacune), and outcome (cognitive scores) were longitudinal data ( 34 , 35 ). The model was composed of 3 steps.…”

Section: Methodsmentioning

confidence: 99%

Distinctive Mediating Effects of Subcortical Structure Changes on the Relationships Between Amyloid or Vascular Changes and Cognitive Decline

et al. 2021

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Objective: We investigated the mediation effects of subcortical volume change in the relationship of amyloid beta (Aβ) and lacune with cognitive function in patients with mild cognitive impairment (MCI).Methods: We prospectively recruited 101 patients with MCI who were followed up with neuropsychological tests, MRI, or Pittsburgh compound B (PiB) PET for 3 years. The mediation effect of subcortical structure on the association of PiB or lacunes with cognitive function was analyzed using mixed effects models.Results: Volume changes in the amygdala and hippocampus partially mediated the effect of PiB changes on memory function (direct effect = −0.168/−0.175, indirect effect = −0.081/−0.077 for amygdala/hippocampus) and completely mediated the effect of PiB changes on clinical dementia rating scale sum of the box (CDR-SOB) (indirect effect = 0.082/0.116 for amygdala/hippocampus). Volume changes in the thalamus completely mediated the effect of lacune on memory, frontal executive functions, and CDR-SOB (indirect effect = −0.037, −0.056, and 0.047, respectively).Conclusions: Our findings provide a better understanding of the distinct role of subcortical structures in the mediation of the relationships of amyloid or vascular changes with a decline in specific cognitive domains.

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“…Other researchers may, therefore, consider the mediating effect between PU, PEU, the selected independent variables and dependent variables of this study in a longitudinal study. As argued by Turnes and Ernst (2016) and Jose (2016), a mediating effect is better hypothesized in a longitudinal study to avoid the ambiguity that may be associated with results of running mediation with concurrent data as the longitudinal study would enable the researchers to track changes that occur in the intention and behavior of users over time. To achieve robust analyses of the implementation of e-learning at the national level, future studies should randomly select private universities from the six geopolitical zones in Nigeria.…”

Section: Conclusion Limitations and Future Researchmentioning

confidence: 99%

Solving e-learning adoption intention puzzles among private universities in Nigeria: an empirical approach

Salimon

Mokhtar

Aliyu

et al. 2021

JARHE

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PurposeE-learning system has been widely acknowledged to have positive impacts on the learning process. Nevertheless, the intention to use it is globally low, thereby constituting puzzles to be solved. This study aims to proffer some insights to solve the puzzles.Design/methodology/approachThe data of the study were collected through an online survey among 425 students of four private universities using interactive electronic board systems. Partial least squares structural equation modeling was used to analyze the data.FindingsThe significant results of the study reveal that system quality, information quality and teaching materials significantly influenced perceived usefulness. Technology innovativeness and information quality also significantly influenced perceived ease of use. Perceived usefulness and perceived ease of use equally influenced e-learning intention.Originality/valueThis research is one of the few studies that conceptualize a framework to study intention to use e-learning generally, and interactive electronic board in particular among four private universities using technology innovativeness, system quality, information quality, perceived usefulness, perceived ease of use and teaching materials.

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The Use of Longitudinal Mediation Models for Testing Causal Effects and Measuring Direct and Indirect Effects

Cited by 9 publications

References 19 publications

Self-Efficacy as a Mechanism Linking Daily Stress to Mental Health in Students: A Three-Wave Cross-Lagged Study

Self-Efficacy as a Mechanism Linking Daily Stress to Mental Health in Students: A Three-Wave Cross-Lagged Study

Distinctive Mediating Effects of Subcortical Structure Changes on the Relationships Between Amyloid or Vascular Changes and Cognitive Decline

Solving e-learning adoption intention puzzles among private universities in Nigeria: an empirical approach

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