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Developmental personality maturation across the life span. Results from a meta-analysis, demonstrating age-related increases throughout the adult life span in both emotional stability and conscientiousness. Source: Adapted from Roberts BW, Walton KE, Viechtbauer W. Patterns of mean-level change in personality traits across the life course: A meta-analysis of longitudinal studies. Psychol Bull. 2006;132(1):1–25.
