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Autism. 2016 Jan;20(1):14-25. doi: 10.1177/1362361314564473. Epub 2015 Jan 28.

Evaluating the appropriateness of a new computer-administered measure of adaptive function for children and youth with autism spectrum disorders.

Author information

1
Boston University, USA wjcoster@bu.edu.
2
Boston University, USA.

Abstract

The Pediatric Evaluation of Disability Inventory-Computer Adaptive Test is an alternative method for describing the adaptive function of children and youth with disabilities using a computer-administered assessment. This study evaluated the performance of the Pediatric Evaluation of Disability Inventory-Computer Adaptive Test with a national sample of children and youth with autism spectrum disorders aged 3-21 years. Parents (n = 365) completed an online survey that included demographics, the Social Communication Questionnaire, and the Pediatric Evaluation of Disability Inventory-Computer Adaptive Test Social/Cognitive, Daily Activities, and Responsibility domains. Item response theory analysis confirmed items in each domain fit a unidimensional model and few items misfit. A large number of items in the Social/Cognitive domain showed differential item functioning, indicating a unique order of item difficulty in this population in this domain. Differences in item difficulty estimates were addressed through a parameter linking (equating) process. Simulations supported the accuracy and precision of the Computer Adaptive Test. Results suggest that the Pediatric Evaluation of Disability Inventory-Computer Adaptive Test, as modified for autism spectrum disorder, is an efficient and sound assessment for this population.

KEYWORDS:

adaptive behavior; adolescents; autism spectrum disorders; children; function; measurement

PMID:
25630376
PMCID:
PMC4661128
DOI:
10.1177/1362361314564473
[Indexed for MEDLINE]
Free PMC Article

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