Article

This study aimed to explore the test-retest reliability of the Pediatric
Evaluation of Disability Inventory-Computer Adaptive Test for autism spectrum
disorders (PEDI-CAT [ASD]), the concurrent validity of this test with the
Vineland Adaptive Behavior Scales (VABS-II), and parents' perceptions of
usability. METHOD: A convenience sample of participants (n=39) was recruited
nationally through disability organizations. Parents of young people aged 10 to
18 years (mean age 14y 10mo, SD 2y 8mo; 34 males, five females) who reported a
diagnosis of autism were eligible to participate. Parents completed the VABS-II
questionnaire once and the PEDI-CAT (ASD) twice (n=29) no more than 3 weeks apart
(mean 12d) using computer-simulated administration. Parents also answered
questions about the usability of these instruments. We examined score reliability
using intraclass correlation coefficients (ICCs) and we explored the relationship
between instruments using Spearman's rank correlation coefficients. Parent
responses were grouped by common content; content categories were triangulated by
an additional reviewer. RESULTS: Intraclass correlation coefficients indicate
excellent reliability for all PEDI-CAT (ASD) domain scores
(ICC >/= 0.86).
PEDI-CAT (ASD) and VABS-II domain scores correlated as expected or stronger than
expected (0.57-0.81). Parents reported that the computer-based PEDI-CAT (ASD) was
easy to use and included fewer irrelevant questions than the VABS-II instrument.
INTERPRETATION: These findings suggest that the PEDI-CAT (ASD) is a reliable
assessment that parents can easily use. The PEDI-CAT (ASD) operationalizes the
International Classification of Function, Disability and Health for Children and
Youth constructs of 'activity' and 'participation', and this preliminary research
suggests that the instrument's constructs are related to those of VABS-II.
CI - (c) 2015 Mac Keith Press.

Langue : ANGLAIS