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A sample of 278 men and 353 elderly women who resided in the community received the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS) as part of a study of health in mature adult Oklahomans. Females attained significantly higher scores on the Immediate and Delayed Memory and the Language Indexes. Males performed better on the Visuospatial/Construction Index, but there was no sex difference on the Attention or Total Indexes. Differences related to sex were modest (2-6 Index points), but combined with the larger effects of education could lead to an adjustment of up to 11 Index points.
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Beatty et al. (2003) studied this question.
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