Psychometric validation of the SNAP-IV rating scale in amblyopic children at high AD/HD risk: structural validity and measurement invariance.

ABSTRACT:

Objective

To validate the psychometric properties of the Swanson, Nolan, and Pelham Rating Scale (SNAP-IV) in amblyopic children at high AD/HD risk and establish its clinical utility for comorbid AD/HD screening.

Methods

This cross-sectional study utilized baseline data from the China Amblyopia Behavioral Cohort (CABC), which comprises 465 amblyopic children (aged 4-17 years). The reliability of the SNAP-IV was comprehensively assessed using Cronbach's alpha and the split-half coefficient. The validity of the SNAP-IV was evaluated using criterion validity with the Conners' parent rating scale (CPRS) and construct validity via confirmatory factor analysis (CFA). The measurement invariance of the SNAP-IV across gender and age groups was also investigated.

Results

The SN

SUBMITTER: Pan L 

PROVIDER: S-EPMC12602427 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature