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Global Multi-Informant Psychometric Consortium • Dr. Alexander Kuznetsov, Ph.D.

COSMIN Box 1–10 Validated • U.S. Copyright #1-15290600571 • OSF Pre-Registered

Open-Access Multi-Informant Diagnostic Inventories for Schools, Families & Researchers

Standardized 1:1 parallel Parent ([P]) and Student ([S]) forms with automated calculation of McCall's T-Scores (M = 50, SD = 10), 95% confidence intervals (±1.96 SEM), and cross-informant perceptual discrepancy indices (|ΔT|). Free for families, school psychologists, and academic researchers worldwide under mandatory citation license.

Baseline Normative Database (2026)
3,809
Validated Protocols
2,327
K–12 Families & Dyads
32
Validated Subscales
10
Global Languages
Scalar invariance verified across Informant (Parent vs. Student), Sex, and Grade Bands (ΔCFI ≤ .006).