Psychometric properties of the Child Health Assessment Questionnaire (CHAQ) applied to children and adolescents with cerebral palsy

Table 4 Item discriminant validity

Domains	Itens (n)	Range of item correlations^a	Success/Total	Success Rate (%)
Dressing	4	0.34 – 0.95	13/32	40.6
Arising	2	0.35 – 0.94	16/16	100.0
Eating	3	0.32 – 0.94	22/24	91.7
Walking	2	0.41 – 0.89	16/16	100.0
Hygiene	5	0.43 – 0.76	40/40	100.0
Reach	4	0.28 – 0.76	21/24	87.5
Grip	5	0.38 – 0.83	39/40	97.5
Activities	5	0.36 – 0.71	29/40	72.5

ISSN: 1477-7525