How much do people's personalities change or remain stable from high school to retirement? To address these questions, we used a large U.S. sample ( = 1,795) that assessed people's personality traits in adolescence and 50 years later. We also used 2 independent samples, 1 cross-sectional and 1 short-term longitudinal ( = 3,934 and = 38, respectively), to validate the personality scales and estimate measurement error. This was the first study to test personality stability/change over a 50-year time span in which the same data source was tapped (i.e., self-report). This allowed us to use 4 different methods (rank-order stability, mean-level change, individual-level change, and profile stability) answering different developmental questions. We also systematically tested gender differences. We found that the average rank-order stability was .31 (corrected for measurement error) and .23 (uncorrected). The average mean-level change was half of a standard deviation across personality traits, and the pattern of change showed maturation. Individual-level change also supported maturation, with 20% to 60% of the people showing reliable change within each trait. We tested 3 aspects of personality profile stability, and found that overall personality profile stability was .37, distinctive profile stability was .17, and profile normativeness was .51 at baseline and .62 at the follow-up. Gender played little role in personality development across the life span. Our findings suggest that personality has a stable component across the life span, both at the trait level and at the profile level, and that personality is also malleable and people mature as they age. (PsycINFO Database Record

No abstract

No abstract

Personality and intelligence are defined as hierarchical constructs, ranging from broad g-factors to (domain-)specific constructs. The present study investigated whether different combinations of hierarchical levels lead to different personality-intelligence correlations. Based on the integrative data analysis approach, we combined a total of five data sets. The focus of the first study (N = 682) was an elaborated measurement of personality (NEO-PI-R), which was applied with a relatively short intelligence test (Intelligence Structure Test 2000 R). In the second study (N = 413), a comprehensive measurement of intelligence (Berlin Intelligence Structure test) was used with a shorter personality questionnaire (NEO-FFI). In line with the Brunswik symmetry principle, the findings emphasize that personality-intelligence correlations varied greatly across the hierarchical levels of constructs considered in the analysis. On average, Openness showed the largest relation with intelligence. We recommend for future studies to investigate personality-intelligence relations at more fine-grained levels based on elaborated measurements of both personality and intelligence.

In this study, we investigated the role of student characteristics and behaviors in a longitudinal study over a 50-year timespan (using a large U.S. representative sample of high school students). We addressed the question of whether behaviors in school have any long-lasting effects for one's later life. Specifically, we investigated the role of being a responsible student, interest in school, writing skills, and reading skills in predicting educational attainment, occupational prestige, and income 11 years (N = 81,912) and 50 years (N = 1,952) after high school. We controlled for parental socioeconomic status, IQ, and broad personality traits in all analyses. We found that student characteristics and behaviors in adolescence predicted later educational and occupational success above and beyond parental socioeconomic status, IQ, and broad personality traits. Having higher interest in school was related to higher educational attainment at years 11 and 50, higher occupational prestige at year 11, and higher income at year 50. Higher levels of being a responsible student were related to higher educational attainment and higher occupational prestige at years 11 and 50. This was the first longitudinal study to test the role of student characteristics and behaviors over and above broad personality traits. It highlights the potential importance of what students do in school and how they react to their experiences during that time. It also highlights the possibility that things that happen in specific periods of one's life may play out in ways far more significant than we expect. (PsycINFO Database Record