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Presentation and Initial Validation of a New Observational Situation and Coding System for Assessing Triadic Family Interactions with Adolescents

by Michaël Romet, Nicolas Favez, Amalia Foletta, Annie Burnier, Aleksandra Mrozek, Marie Schumacher, and Hervé Tissot

Posted: July 8, 2025
Server: Preprints.org
DOI: 10.20944/preprints202507.0611.v1

This study investigated the validity of a new observational procedure for assessing moth-er–father–adolescent conflict interactions. Addressing key gaps in the field, this procedure moves beyond mother–adolescent dyads and self-report questionnaires by offering a standardized, observational family-level approach. The procedure combines the Lau-sanne Trilogue Play – Conflict Discussion Task (LTP–CDT) with a coding system, the Family Conflict and Alliance Assessment Scales with Adolescents (FCAAS). In a sample of 82 two-parent families with adolescents aged 10 to 13, the FCAAS demonstrated excel-lent inter-rater reliability and good validity. Confirmatory factor analysis supported a the-oretically grounded two-factor structure. Criterion and construct validity were confirmed via self-reports of marital satisfaction and coparenting, respectively. Ecological validity was supported by family members’ self-reports. This tool offers promising research and clinical applications and may be extended to diverse populations to assess known-group validity.

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