Five-Factor Model Personality Traits and the Trajectory of Episodic Memory: Individual-Participant Meta-analysis of 471,821 Memory Assessments from 120,640 Participants.

FFM traits have a robust association with average memory performance. Higher neuroticism and lower conscientiousness were associated with declines in memory performance only among samples with more than two memory assessments. The heterogeneity across studies suggests that multiple memory assessments are needed to reliably detect change over time, which may be one reason for past inconsistencies across studies.