Construct validity of the Wisconsin Card Sorting Test-64 in patients with stroke.
This study examined the factor structure and contrasted-group validity of the Wisconsin Card Sorting Test-64 (WCST-64) in a stroke sample (n = 112). Confirmatory factor analyses were used to compare five different models suggested by prior factor analyses. The results indicated that the WCST-64 was best represented by a three-dimensional model comprising response inflexibility (factor 1), ineffective hypothesis-testing strategy (factor 2), and set maintenance (factor 3). A significant overall multivariate effect for group (F = 2.87, df = 18,495.46, p <.001) was found in a multivariate analysis of covariance with WCST scores as dependent variables and four different groups (three stroke subgroups with different levels of cognitive function and a normal control group) as independent variable, after controlling for gender. The results of discriminant analysis supported the use of the WCST-64 in stroke patients with cognitive impairment.
Su
Chwen-Yng
CY
School of Occupational Therapy, College of Health Science, Kaohsiung Medical University, Kaohsiung, Taiwan. cysu@cc.kmu.edu.tw
Lin
Yueh-Hsieh
YH
Kwan
Aij-Lie
AL
Guo
Nai-Wen
NW
D000328:Adult; D000368:Aged; D000704:Analysis of Variance; D016022:Case-Control Studies; D003072:Cognition Disorders / Q000209:etiology*; D016002:Discriminant Analysis; D005260:Female; D006801:Humans; D007360:Intelligence; D007802:Language; D008297:Male; D008568:Memory; D008609:Mental Status Schedule; D008875:Middle Aged; D009483:Neuropsychological Tests; D010364:Pattern Recognition, Visual; D011340:Problem Solving; D015203:Reproducibility of Results; D012189:Retrospective Studies; D020521:Stroke / Q000150:complications*