Education Differentially Buffers Cognitive Performance in Black and White Older Adults

Kharine R Jean, Cutter A Lindbergh, Catherine M Mewborn, Talia L Robinson, Marissa A Gogniat, L Stephen Miller and Angela Gutchess

The Journals of Gerontology: Series B, 2019, vol. 74, issue 8, 1366-1375

Abstract: Objectives Given that black American older adults are more likely to have lower educational attainment and perform worse on cognitive tests than white Americans, we examined whether increased education would confer greater cognitive advantage to black Americans on measures of global and specific domains of cognitive function. Methods The sample included 522 community-dwelling older adults from a larger study. An analysis of covariance was conducted with race and education as between-participant factors and global cognition as the dependent variable. A multivariate analysis of covariance was conducted with five cognitive domains (immediate memory, visuospatial/constructional ability, language, attention, and delayed memory) as the dependent variables. Results Significant main effects indicated that black Americans, F(1,516) = 29.18, p < .001, and individuals with less education, F(1,516) = 44.93, p < .001, evidenced lower cognitive functioning, controlling for age and overall health status, and the interaction term reached statistical significance, F(1,516) = 7.95, p = .005. The impact of education on global cognitive function for black participants was more than twice as large (Cohen’s d = 1.30) than for white participants (Cohen’s d = .52). There was a significant race × education interaction for the cognitive domain of attention (p < .001) and a composite measure of non-memory domains (i.e., language, visuospatial/constructional, and attention; p < .001). Discussion Our findings suggest that educational attainment is particularly important for black Americans with respect to global cognitive function, attention, and non-memory domains.

Keywords: Cognition; Cognitive reserve; Cross-cultural differences; Minority and diverse populations (search for similar items in EconPapers)
Date: 2019
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