ArticleFrontiers in psychology2026
Associations among hair cortisol-to-DHEA ratio, psychological capital, harsh parenting, and internalizing problems in adolescence.
Article in Frontiers in psychology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Introduction: Internalizing problems are increasingly prevalent among Chinese students in junior high school, and posing significant risks for long-term maladjustment. However, the mechanisms underlying these problems are unclear. The present study aimed to test the moderating effects of psychological capital and harsh parenting in the association between the hair cortisol-to-DHEA (C/D) ratio and internalizing problems in adolescence. Methods: 282 junior high school students in China participated in this study (114 boys, 166 girls, and 2 with missing sex data; Results: The main effect of the hair C/D ratio on internalizing problems was not significant. The interaction between the C/D ratio and psychological capital was significant. Simple slope analysis revealed that a higher C/D ratio predicted fewer internalizing problems among adolescents with high psychological capital, but not among those with mean or low psychological capital. The three-way interaction involving harsh parenting was marginal after correction for multiple testing. Conclusion: Psychological capital moderates the association between the hair C/D ratio and adolescent internalizing problems. These findings highlight psychological capital as a potential intervention target for promoting adaptive stress responses in adolescents.
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