Bidirectional Associations Between Adolescents' Weekly Variation and Selection of Behavior, Well-Being, and Social Support During a Brief ACT-Based Internet Intervention.

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Title: Bidirectional Associations Between Adolescents' Weekly Variation and Selection of Behavior, Well-Being, and Social Support During a Brief ACT-Based Internet Intervention.
Authors: Hämäläinen, Tetta (AUTHOR), Kaipainen, Kirsikka (AUTHOR), Keinonen, Katariina (AUTHOR), Muotka, Joona (AUTHOR), Räsänen, Panajiota (AUTHOR), Kiuru, Noona (AUTHOR)
Source: Cognitive Therapy & Research. Jun2026, Vol. 50 Issue 3, p559-572. 14p.
Subjects: Well-being, Acceptance & commitment therapy, Gender differences (Sociology), Teenagers, Internet programming, Social support, Choice (Psychology), Human behavior
Abstract: Background: We investigated the extent to which adolescent (n = 314) well-being (i.e., life satisfaction, internalizing symptoms) and social support predict weekly variation of behavior, adaptive behavioral selection, and maladaptive behavioral selection during a five-week internet intervention based on acceptance and commitment therapy (ACT) and the extent to which variation and selection of behavior predict well-being and social support. Additionally, gender and readiness to change were examined as predictors of individual differences. Methods: Research questions were investigated using random intercept cross-lagged panel modeling. Results: Higher variation, adaptive behavioral selection, and maladaptive behavioral selection were consistently associated with adolescents' higher life satisfaction and social support. Cross-lagged and bidirectional within-individual associations became apparent towards the end of the intervention. Gender-based differences were identified in well-being, social support, and variation and selection of behavior and well-being, social support, and variation and selection of behavior were predicted differently by different stages of readiness to change. Conclusions: The findings contribute to process-based literature by enhancing our understanding of the underlying between- and within-individual mechanisms during an ACT intervention for adolescents. The results provide valuable new knowledge on the weekly associations between adolescent well-being, social support, and variation and selection of behavior. [ABSTRACT FROM AUTHOR]
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Database: Psychology and Behavioral Sciences Collection
Description
Abstract:Background: We investigated the extent to which adolescent (n = 314) well-being (i.e., life satisfaction, internalizing symptoms) and social support predict weekly variation of behavior, adaptive behavioral selection, and maladaptive behavioral selection during a five-week internet intervention based on acceptance and commitment therapy (ACT) and the extent to which variation and selection of behavior predict well-being and social support. Additionally, gender and readiness to change were examined as predictors of individual differences. Methods: Research questions were investigated using random intercept cross-lagged panel modeling. Results: Higher variation, adaptive behavioral selection, and maladaptive behavioral selection were consistently associated with adolescents' higher life satisfaction and social support. Cross-lagged and bidirectional within-individual associations became apparent towards the end of the intervention. Gender-based differences were identified in well-being, social support, and variation and selection of behavior and well-being, social support, and variation and selection of behavior were predicted differently by different stages of readiness to change. Conclusions: The findings contribute to process-based literature by enhancing our understanding of the underlying between- and within-individual mechanisms during an ACT intervention for adolescents. The results provide valuable new knowledge on the weekly associations between adolescent well-being, social support, and variation and selection of behavior. [ABSTRACT FROM AUTHOR]
ISSN:01475916
DOI:10.1007/s10608-025-10633-x