Is College Completion Associated with Better Cognition in Later Life for People Who Are the Least, or Most, Likely to Obtain a Bachelor's Degree?

OBJECTIVES: Drawing on insights from theorizing on cumulative dis/advantage (CDA), we aimed to advance understanding of educational attainment as a protective factor for later-life cognition by examining whether associations between obtaining a bachelor's degree and later-life cognition differ according to individuals' likelihood of completing college based on characteristics in adolescence. METHODS: We conducted a propensity score analysis with data from the Wisconsin Longitudinal Study (WLS). Measures to predict college completion were assessed prospectively in adolescence, and a global measure of later-life cognition was based on cognitive assessments at age 65. RESULTS: College completion by age 25 (vs high school only) was associated with better later-life cognition for both men and women. Among men specifically, associations were stronger for those who were less likely as adolescents to complete college. DISCUSSION: Results indicate the utility of a CDA perspective for investigating the implications of interconnected early life risk and protective factors for later-life cognition, as well as ways in which college education can both contribute to, as well as mitigate, processes of CDA.