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Eur Child Adolesc Psychiatry2026August 24, 2026Journal Article

Convergence and divergence of mental health symptoms among adolescents and their friends.

Delfina Bilello1, Chloe Bracegirdle2, Jack L Andrews3
1Department of Experimental Psychology, University of Oxford, Oxford, UK. delfina.bilello@psy.ox.ac.uk.
2School of Psychology, University of Surrey, Guildford, UK.
3Department of Experimental Psychology, University of Oxford, Oxford, UK.
PubMed DOI

Abstract

Peers play a central role in shaping adolescent mental health, with internalising and externalising symptoms often clustering within friendship groups. In this study we examined whether adolescents' internalising and externalising symptoms converged, or diverged, with their best friend(s) symptoms over time, and whether gender and experiences of victimisation influenced these patterns. We conducte…

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