Item-saving assessment of self-care performance in children with developmental disabilities: A prospective caregiver-report computerized adaptive test.

ABSTRACT:

Objective

The purpose of this study was to construct a computerized adaptive test (CAT) for measuring self-care performance (the CAT-SC) in children with developmental disabilities (DD) aged from 6 months to 12 years in a content-inclusive, precise, and efficient fashion.

Methods

The study was divided into 3 phases: (1) item bank development, (2) item testing, and (3) a simulation study to determine the stopping rules for the administration of the CAT-SC. A total of 215 caregivers of children with DD were interviewed with the 73-item CAT-SC item bank. An item response theory model was adopted for examining the construct validity to estimate item parameters after investigation of the unidimensionality, equality of slope parameters, item fitness, and differential item function

SUBMITTER: Chen CT 

PROVIDER: S-EPMC5862472 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature