title: Developing the Observatory Test of Capacity, Performance, and Developmental Disregard (OTCPDD) for Children with Cerebral Palsy.
abstract: OBJECTIVE
  The purpose of this study was to develop a reliable and valid instrument, named the Observatory Test of Capacity, Performance, and Developmental Disregard (OTCPDD), for measuring the amount and quality of use of affected upper limb functions in the daily routines of children with CP.
  
  
  METHODS
  Forty-eight participants (24 children with CP and 24 matched typically developing children) were recruited. The OTCPDD was administered twice (the spontaneous use condition first, followed by the forced use condition) on children with CP. Their parents were asked to complete the Pediatric Motor Activity Log-Revised (PMAL-R). The internal consistency, the intrarater and interrater reliabilities, and the convergent and discriminate validities were measured.
  
  
  RESULTS
  The internal consistency (Cronbach's alpha) and the intrarater and interrater reliabilities were higher than 0.9 for all of the OTCPDD scores. The convergent validity was confirmed by significant correlations between the OTCPDD and the PMAL-R. For the discriminant validity, significant differences (p<0.05) were found between children with CP and typically developing children.
  
  
  CONCLUSIONS
  The results support that the OTCPDD is a reliable and valid observation-based assessment. The OTCPDD, which uses bimanual daily living activities, is able to represent the children's general affected hand functions (including capacity, performance, and developmental disregard) in their daily routines.
authors.affiliation: School of Occupational Therapy, College of Medicine, National Taiwan University, Taipei, Taiwan.
authors.forename: Kuan-Chun
authors.initials: KC
authors.lastname: Liu
authors.affiliation: School of Occupational Therapy, College of Medicine, National Taiwan University, Taipei, Taiwan.|Department of Physical Medicine and Rehabilitation, National Taiwan University Hospital, Taipei, Taiwan.
authors.forename: Hao-Ling
authors.initials: HL
authors.lastname: Chen
authors.affiliation: School of Occupational Therapy, College of Medicine, National Taiwan University, Taipei, Taiwan.|Department of Physical Medicine and Rehabilitation, National Taiwan University Hospital, Taipei, Taiwan.
authors.forename: Tien-Ni
authors.initials: TN
authors.lastname: Wang
authors.affiliation: Department of Physical Medicine and Rehabilitation, National Taiwan University Hospital, Taipei, Taiwan.
authors.forename: Jeng-Yi
authors.initials: JY
authors.lastname: Shieh
mesh_terms: D000203:Activities of Daily Living; D000293:Adolescent; D002547:Cerebral Palsy / Q000175:diagnosis* / Q000503:physiopathology* / Q000523:psychology; D002648:Child; D002657:Child Development; D002675:Child, Preschool; D004185:Disability Evaluation; D005260:Female; D006801:Humans; D008297:Male; D009043:Motor Activity; D010290:Parents; D011594:Psychometrics; D034941:Upper Extremity / Q000503:physiopathology