Individuals are expected to mature with increasing age, but it is not yet fully understood which factors contribute to this maturation process. Using data of a representative sample of Germans (N = 14,718) who gave information about their Big Five personality traits twice over a period of 4...

Perceived control is an important variable for various demands involved in successful aging. However, perceived control is not set in stone, but rather changes throughout the life course. The aim of this study was to identify cross-sectional age differences and longitudinal mean-level changes as...

Does personality change across the entire life course, and are those changes due to intrinsic maturation or major life experiences? This longitudinal study investigated changes in the mean levels and rank order of the Big Five personality traits in a heterogeneous sample of 14,718 Germans across...

Due to its sensitive nature, tax compliance is difficult to study empirically, and valid information on tax evasion is rare. More specifically, when directly asked on surveys, respondents are likely to underreport their evasion behavior. Such invalid responses not only bias prevalence estimates...

Using cross-sectional and longitudinal data from a national sample spanning the adult lifespan, age differences in anger and sadness were explored. The cross-sectional and longitudinal findings consistently suggest that the frequency of anger increases during young adulthood, but then shows a...

Using cross-sectional and longitudinal data from a national sample spanning the adult life span, age differences in anger and sadness were explored. The cross-sectional and longitudinal findings consistently suggest that the frequency of anger increases during young adulthood, but then shows a...