Age-related change in self-perceptions of aging: Longitudinal trajectories and predictors of change.

Using data from the German Ageing Survey (Deutscher Alterssurvey, DEAS; N = 4,712), this study examined age-related change in three dimensions of self-perceptions of aging (SPA): perceptions of physical losses, social losses, and ongoing development. Participants ranged in age from 40 to 85 years at study entry (1996, 2002, or 2008) and were followed for up to 21 years. Time-invariant, context-specific and time-varying, person-specific predictors of the observed age-related changes were examined. Findings from longitudinal multilevel regression analyses showed significant nonlinear age-related change for all three dimensions. Specifically, starting at about age 65, participants showed age-related increases in perceptions of physical and social losses, with increases getting steeper in old age. Starting at about age 55, participants reported increasingly fewer perceptions related to ongoing development. The decline in perceptions of ongoing development also became increasingly steeper after age 70. Region of residence was a significant context-specific predictor of the intercepts of the three SPA dimensions. Health-related variables (i.e., number of chronic diseases, self-rated health), affective well-being (i.e., positive and negative affect), and measures of social integration (i.e., loneliness) were significant person-specific predictors. Health-related variables had their strongest association with perceptions of physical losses, whereas negative affect and loneliness had their strongest association with perceptions of social losses. Positive affect had its strongest association with perceptions of ongoing development. This study is the first one to describe age-related change trajectories in multiple dimensions of SPA and significant predictors of these change trajectories. (PsycInfo Database Record (c) 2021 APA, all rights reserved).