Journal
JOURNAL OF THE INTERNATIONAL NEUROPSYCHOLOGICAL SOCIETY
Volume 10, Issue 3, Pages 401-411Publisher
CAMBRIDGE UNIV PRESS
DOI: 10.1017/S1355617704103081
Keywords
cancellation tests; cognitive style; ethnicity differences
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Funding
- NIA NIH HHS [T32 AG000261, AG07232, AG16206] Funding Source: Medline
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Shape and letter cancellation test performance was investigated among large samples of African American, Hispanic, and White non-demented elders. Ethnic minority elders took significantly longer to complete both tasks compared to Whites. An index of task efficiency, which simultaneously measures time and accuracy, suggested that slower time by minority elders was not related to a measurable effort to achieve greater accuracy. The frequency of commission errors was greater in our sample than in previous reports, especially among ethnic minority elders. Although significant differences were observed between the ethnic groups when matched for years of education, equating for literacy level eliminated all performance differences between African Americans and Whites on both cancellation tasks.
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