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Random-Intercept Cross-Lagged Panel Models allow for the decomposition of measurements into between- and within-person components and have hence become popular for testing developmental hypotheses. Here, we describe how developmental researchers can implement, test and interpret interaction effects in such models using an empirical example from developmental psychopathology research. We illustrate the analysis of and interactions utilising data from the United Kingdom-based Millennium Cohort Study within a Bayesian Structural Equation Modelling framework. We provide annotated Mplus code, allowing users to isolate, estimate and interpret the complexities of within-person and between person dynamics as they unfold over time.
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http://dx.doi.org/10.31234/osf.io/wktrb | DOI Listing |
Addict Behav
September 2025
Department of Psychology, Korea Military Academy, 574 Hwarang-ro, Nowon-gu, Seoul 01805, Republic of Korea. Electronic address:
Emerging evidence suggests a positive link between parental and child problematic smartphone use (PSU), yet the direction and reciprocity of this relationship over time remain unclear. Here, we address this gap by examining six years (2018-2023) of PSU data from 4,086 parent-child dyads in South Korea, comprising two cohorts: a child cohort (1,984 dyads; mean child age = 11.00, 51.
View Article and Find Full Text PDFAppl Psychol Health Well Being
October 2025
Department of Educational Sciences, Masaryk University, Faculty of Arts, Czech Republic.
Burnout and perceived work ability (PWA) are critical factors influencing teachers' professional well-being and effectiveness. The potential bidirectional relationship between these constructs remains underexplored, particularly in primary and lower secondary school teachers. This study examines the reciprocal relationship between burnout and PWA among teachers over time, using the job demands-resources (JD-R) model and the conservation of resources (COR) theory.
View Article and Find Full Text PDFAging Ment Health
September 2025
Department of Psychology, University of California, Irvine, CA, USA.
Objectives: Being socially integrated is vital to emotional well-being, partly because social connections provide purpose. Nevertheless, fewer have explored purpose in life as a potential mechanism linking social activity variety, one of the indicators of social integration, to mental health outcomes. This study examined purpose in life as a mediator in the relationship between earlier social activity variety and later depressive symptoms among U.
View Article and Find Full Text PDFFront Psychol
August 2025
Centro de Estudios Avanzados en Justicia Educacional, Pontificia Universidad Católica de Chile, Santiago, Chile.
Introduction: Research has found a correlation between screen exposure in early childhood and children's socio-emotional development, particularly in Global North countries. However, the direction of the effect has not been extensively studied in early childhood, especially in Global South contexts. This study aims to describe the relationship and the bidirectional longitudinal associations between screen exposure and children's internalizing and externalizing problems among children in Chile.
View Article and Find Full Text PDFJ Child Psychol Psychiatry
September 2025
Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK.
Background: Comorbidity and heterogeneity in psychiatric disorders may stem from a general psychopathology (p) factor influenced by both genetic and environmental factors. Although the relative contributions of these influences on psychopathology are established, the longitudinal associations between the p-factor and specific environmental exposures and the aetiology of these associations across development are not well understood. Here, we examine whether twin-rated home environment contributes to changes in the p-factor over time or, conversely, whether the p-factor influences twin-rated home environment, reflecting potential evocative gene-environment processes.
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