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Differences in Cognitive Aging Assessments Associated With Retest Effects

JAMA Network Open 10.1001/jamanetworkopen.2026.28782

August 12, 2026 at 11:00 AM EDT

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This cohort study found that retest differences were substantial for global cognition, executive function, and memory but did not meaningfully alter estimated hearing intervention outcomes. Adjustment for retest differences is recommended to improve interpretation and intervention estimation in longitudinal cognitive studies.

Corresponding Author: Alden L. Gross, PhD, Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, 2024 E Monument St, Baltimore, MD 21205 (agross14@jhu.edu).

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