title: Computer adaptive test performance in children with and without disabilities: prospective field study of the PEDI-CAT.
abstract: OBJECTIVE
  To examine the discriminant validity, test-retest reliability, administration time and acceptability of the pediatric evaluation of disability inventory computer adaptive test (PEDI-CAT).
  
  
  METHODS
  A sample of 102 parents of children 3 through 20 years of age with (n = 50) and without (n = 52) disabilities was recruited for this prospective field study. A sub-sample (n = 25) also completed the PEDI-CAT a second time within one month. Parents completed 15 items in each of the four PEDI-CAT domains (daily activities, mobility, social/cognitive, responsibility) using a laptop computer. Following completion, parents answered a four-question user evaluation survey.
  
  
  RESULTS
  PEDI-CAT scores based on parent responses differentiated between groups of children with and without disabilities in all four domains. Test-retest reliability estimates were high (ICC = 0.96-0.99) for all four domains. The mean time to complete 60 items for the full sample (n = 102) was 12.66 minutes (SD = 4.47). Parents reported favorable reactions to the PEDI-CAT.
  
  
  CONCLUSIONS
  The PEDI-CAT offers a valid and reliable assessment acceptable to parents.
authors: Research Center, Franciscan Hospital for Children, Boston, MA 02135, USA. hdumas@fhfc.org
authors: Helene M
authors: HM
authors: Dumas
authors: Maria A
authors: MA
authors: Fragala-Pinkham
authors: Stephen M
authors: SM
authors: Haley
authors: Pengsheng
authors: P
authors: Ni
authors: Wendy
authors: W
authors: Coster
authors: Jessica M
authors: JM
authors: Kramer
authors: Ying-Chia
authors: YC
authors: Kao
authors: Richard
authors: R
authors: Moed
authors: Larry H
authors: LH
authors: Ludlow
mesh_terms: D000203:Activities of Daily Living; D000293:Adolescent; D001294:Attitude to Health; D002648:Child; D002675:Child, Preschool; D003936:Diagnosis, Computer-Assisted / Q000379:methods*; D004185:Disability Evaluation; D019988:Children with Disabilities; D005260:Female; D006801:Humans; D008297:Male; D010290:Parents; D010372:Pediatrics; D011446:Prospective Studies; D011581:Psychological Tests / Q000592:standards*; D011594:Psychometrics; D015203:Reproducibility of Results; D013997:Time Factors; D055815:Young Adult