Psychometric Properties of the Child and Adolescent PsychProfiler: Self-Report Form

The Child and Adolescent PsychProfiler version 5 (CAPP v5) is a comprehensive multi‑informant screening measure encompassing 17 symptom scales that map onto 14 Diagnostic and Statistical Manual of Mental Disorders (5th ed.; DSM-5) disorders. The self‑report form (CAPP‑SRF) has not previously undergone a comprehensive psychometric evaluation. The objective of the study is to analyze the internal structure (Independent Clusters Model of Confirmatory Factor Analysis [ICM‑CFA]), reliability (α, ω), and validity evidence (discriminant, convergent, criterion‑related) of the CAPP‑SRF. Study 1 examined the 17‑factor model within a community sample of 790 adolescents (M = 14.48 years). Study 2 evaluated convergent, criterion‑related, and discriminant validity in a clinic‑referred sample of 173 adolescents (M = 14.50 years) utilizing the Conners 3‑SR, Beck Youth Inventories, Second Edition (BYI‑2), Wechsler Intelligence Scale for Children-Fifth Edition (WISC‑V), and Wechsler Individual Achievement Test, Third Edition (WIAT‑III). Independent‑samples t tests compared CAPP‑SRF means across samples. The ICM‑CFA analysis confirmed the 17‑factor structure (χ²/df = 3.02; standardized root mean squared error [SRMR] = .076). Scale reliability was acceptable (ω = .79-.89). Clinic participants scored significantly higher than community participants on 15 of the 17 scales (all p < .001; d = .55-1.20), supporting criterion validity. Convergent and discriminant patterns with external measures were as hypothesized (|r| = .32-.68; R² = .10-.46). The CAPP‑SRF demonstrates robust psychometric properties and complements the parent‑ and teacher‑report forms as an effective adolescent self‑report screener for common DSM‑5 disorders.