Restricted accessResearch articleFirst published online 2000-03
The Relationship between the Differential Ability Scales (DAS) and the Woodcock-Johnson Tests of Cognitive Ability-Revised (WJ-R COG) for Students Referred for Special Education Evaluations
The Differential Ability Scales (DAS) and the Woodcock-Johnson Tests of Cognitive Ability-Revised (WJ-R COG standard battery) were administered to 81 children referred for special education services evaluation. Both the General Conceptual Ability (GCA) and the Nonverbal Reasoning scores of the DAS were significantly lower than the WJ-R COG Broad Cognitive Ability-Standard score (BCA-STD). The DAS Verbal and Spatial Composite scores were not significantly different from the BCA-STD. Low to moderate correlations were found between related constructs on the two tests.
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