Assisting Hand Assessment and Children's Hand-Use Experience Questionnaire -Observed Versus Perceived Bimanual Performance in Children with Unilateral Cerebral Palsy.
OBJECTIVE
To explore the differences, relationship, and extent of agreement between the Assisting Hand Assessment (AHA), measuring observed ability to perform bimanual tasks, and the Children's Hand-Use Experience Questionnaire (CHEQ), assessing experienced bimanual performance.


METHODS
This study investigates a convenience sample of 34 children (16 girls) with unilateral cerebral palsy aged 6-18 years (mean 12.1, SD 3.9) in a cross-sectional design.


RESULTS
The AHA and CHEQ subscales share 8-25% of their variance (R2). Bland-Altman plots for AHA and all three CHEQ subscales indicate good average agreement, with a mean difference approaching zero but large 95% confidence intervals. Limits of agreement were extremely wide, indicating considerable disagreement between AHA and CHEQ subscales.


CONCLUSIONS
AHA and CHEQ seem to measure different though somewhat related constructs of bimanual performance. Results of this investigation reinforce the recommendation to use both instruments to obtain complementary information about bimanual performance including observed and perceived performance of children with unilateral cerebral palsy.
a Department of Women's and Children's Health , Karolinska Institute , Stockholm , Sweden.|b Caphri Research Institute, Program Functioning and Rehabilitation, Department of Epidemiology , Maastricht University , Maastricht , The Netherlands.
Ulrike C
UC
Ryll
b Caphri Research Institute, Program Functioning and Rehabilitation, Department of Epidemiology , Maastricht University , Maastricht , The Netherlands.
Carolien H G
CH
Bastiaenen
a Department of Women's and Children's Health , Karolinska Institute , Stockholm , Sweden.
Ann-Christin
AC
Eliasson
D000293:Adolescent; D002547:Cerebral Palsy / Q000503:physiopathology*; D002648:Child; D003430:Cross-Sectional Studies; D004185:Disability Evaluation; D005260:Female; D006225:Hand / Q000503:physiopathology*; D006801:Humans; D008297:Male; D009048:Motor Skills; D019370:Observation; D011795:Surveys and Questionnaires; D013647:Task Performance and Analysis
Assessments; bimanual performance; cerebral palsy; hand function