title: Construct validity of the Capacity Profile in adolescents with cerebral palsy.
abstract: OBJECTIVE
  To establish construct validity of the Capacity Profile, a method to comprehensively classify additional care needs in five domains of body functions (physical health, motor, sensory, mental, voice and speech functions), in adolescents with non-progressive, permanent conditions such as cerebral palsy.
  
  
  METHODS
  Cross-sectional study.
  
  
  METHODS
  Ninety-four adolescents with cerebral palsy: 60 boys, 34 girls, median age 14.3, range 12-16 years, unilateral (n = 37), bilateral (n = 57), spastic (n = 76), ataxic (n = 4), dyskinetic (n = 5), mixed (dyskinetic and spastic, n =9), Gross Motor Function Classification System: level I (n = 50), level II (n = 6), level III (n = 10), level IV (n = 8), level V (n = 20).
  
  
  METHODS
  Associations were calculated between Capacity Profile domains and Vineland Adaptive Behavior Scales (communication, daily activities, social and motor skills) and Gross Motor Function Classification System using Spearman's rho. Furthermore, we explored the independent contribution of the Capacity Profile domains to activities and participation measured with the Vineland Adaptive Behavior Scales.
  
  
  RESULTS
  All Capacity Profile domains were significantly associated with all domains of the Vineland Adaptive Behavior Scales and the Gross Motor Function Classification System (P<0.05). Multiple regression analysis showed that the Capacity Profile contributed 87% to variance in communication (Capacity Profile-voice 78%, mental 8% and physical 1%), 85% to daily activities (Capacity Profile-mental 75%, motor 8% and voice 2%), 60% to social skills (Capacity Profile-voice 56% and mental 4%), and 91% to motor skills (Capacity Profile-motor 87%, mental 3% and sensory 1%).
  
  
  CONCLUSIONS
  These findings support the construct validity of the Capacity Profile in adolescents with cerebral palsy. Construct validity in other medical conditions should be further investigated.
authors.affiliation: Department of Rehabilitation, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands. a.meester@amc.uva.nl
authors.forename: Anke
authors.initials: A
authors.lastname: Meester-Delver
authors.forename: Anita
authors.initials: A
authors.lastname: Beelen
authors.forename: Mirjam
authors.initials: M
authors.lastname: van Eck
authors.forename: Jeanine
authors.initials: J
authors.lastname: Voorman
authors.forename: Annet
authors.initials: A
authors.lastname: Dallmeijer
authors.forename: Frans
authors.initials: F
authors.lastname: Nollet
authors.forename: Jules
authors.initials: J
authors.lastname: Becher
mesh_terms: D000203:Activities of Daily Living; D000223:Adaptation, Psychological; D000293:Adolescent; D002547:Cerebral Palsy / Q000503:physiopathology* / Q000534:rehabilitation; D002648:Child; D003430:Cross-Sectional Studies; D004185:Disability Evaluation; D005260:Female; D006801:Humans; D008297:Male; D009048:Motor Skills; D020380:Needs Assessment; D012044:Regression Analysis; D015203:Reproducibility of Results; D012720:Severity of Illness Index