title: Validity, responsiveness, minimal detectable change, and minimal clinically important change of the Pediatric Motor Activity Log in children with cerebral palsy.
abstract: This study examined criterion-related validity and clinimetric properties of the Pediatric Motor Activity Log (PMAL) in children with cerebral palsy. Study participants were 41 children (age range: 28-113 months) and their parents. Criterion-related validity was evaluated by the associations between the PMAL and criterion measures at baseline and posttreatment, including the self-care, mobility, and cognition subscale, the total performance of the Functional Independence Measure in children (WeeFIM), and the grasping and visual-motor integration of the Peabody Developmental Motor Scales. Pearson correlation coefficients were calculated. Responsiveness was examined using the paired t test and the standardized response mean, the minimal detectable change was captured at the 90% confidence level, and the minimal clinically important change was estimated using anchor-based and distribution-based approaches. The PMAL-QOM showed fair concurrent validity at pretreatment and posttreatment and predictive validity, whereas the PMAL-AOU had fair concurrent validity at posttreatment only. The PMAL-AOU and PMAL-QOM were both markedly responsive to change after treatment. Improvement of at least 0.67 points on the PMAL-AOU and 0.66 points on the PMAL-QOM can be considered as a true change, not measurement error. A mean change has to exceed the range of 0.39-0.94 on the PMAL-AOU and the range of 0.38-0.74 on the PMAL-QOM to be regarded as clinically important change.
authors: School of Occupational Therapy, College of Medicine, National Taiwan University, 17 F4 Xu-Zhou Road, Taipei, Taiwan.
authors: Keh-chung
authors: KC
authors: Lin
authors: Hui-fang
authors: HF
authors: Chen
authors: Chia-ling
authors: CL
authors: Chen
authors: Tien-ni
authors: TN
authors: Wang
authors: Ching-yi
authors: CY
authors: Wu
authors: Yu-wei
authors: YW
authors: Hsieh
authors: Li-ling
authors: LL
authors: Wu
mesh_terms: D002547:Cerebral Palsy / Q000503:physiopathology* / Q000523:psychology / Q000534:rehabilitation*; D002648:Child; D002675:Child, Preschool; D004185:Disability Evaluation; D005260:Female; D018737:Hand Strength; D006801:Humans; D008297:Male; D009043:Motor Activity; D009460:Neurologic Examination / Q000592:standards / Q000706:statistics & numerical data; D011237:Predictive Value of Tests; D011594:Psychometrics / Q000592:standards* / Q000706:statistics & numerical data; D011597:Psychomotor Performance; D015203:Reproducibility of Results