Age-related differences in actual-ideal personality trait level discrepancies.

People differ from each other in their typical patterns of behavior, thought, and emotion and these patterns are considered to constitute their personalities (Funder, 2001). For various reasons, for example, because certain trait levels may help to attain certain goals or fulfill certain social roles, people may experience that their actual trait levels are different from their ideal trait levels. In this study, we investigated (a) the impact of age on discrepancies between actual and ideal Big Five personality trait levels and (b) the impact of these discrepancies on personality trait changes across a period of 2 years. We use data of a large, nationally representative, and age-diverse sample (N = 4,057, 17-94 years, M = 53 years). Results largely confirmed previously reported age effects on actual personality trait levels but were sometimes more complex. Ideal trait levels exceeded actual trait levels more strongly for younger compared with older adults. Unexpectedly, neither ideal trait levels nor their interaction with beliefs about the extent to which personality is malleable versus fixed predicted trait change over 2 years (controlling for actual trait levels). We conclude that ideal-actual trait level discrepancies may provide an impetus for change but that they appear to neither alone nor in combination with the belief that personality trait change is possible suffice to produce such change. We discuss commitment, self-efficacy, and strategy knowledge as potential additional predictors of trait change. (PsycInfo Database Record (c) 2020 APA, all rights reserved).