Longitudinal changes and historic differences in narcissism from adolescence to older adulthood.

s ranged from .37 to .52), to a comparable degree as other psychological characteristics. We found that more maladaptive forms of narcissism (e.g., hypersensitivity, willfulness) declined across life and individual autonomy increased across life. More later-born birth cohorts were lower in hypersensitivity and higher in autonomy compared with earlier-born birth cohorts; these differences were most apparent among those born after the 1930s. The results are discussed in the context of the mechanisms that drive both changes in narcissism across the life span and substantive differences in narcissism between historical periods. (PsycINFO Database Record (c) 2019 APA, all rights reserved).