Psychometric Properties and Normative Data Using Item Response Theory Approach for Three Neuropsychological Tests in Waranka Children Population.

ABSTRACT:

Objective

To evaluate the psychometric properties of the Shortened Version of the Token Test (SVTT), the Peabody Picture Vocabulary Test (PPVT-III), and the Rey-Osterrieth Complex Figure (ROCF) using an item response theory (IRT) framework and to establish normative data for Waranka children and adolescents based on their ability scores.

Methods

A total of 436 healthy people aged between 6 and 17 participated in this study. The factor structure was evaluated using confirmatory factor analysis (CFA) and the difficulty and discrimination parameters using IRT through the two-parameter logistic model for the SVTT and PPTV-III, while for the ROCF, the graded response model was used. The ordinal alpha and McDonald's omega were used for reliability.

Results

For most items, a

SUBMITTER: Fierro Bosquez MJ 

PROVIDER: S-EPMC11855604 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature