Callous-unemotional (CU) traits have proven important for designating children and adolescents showing a pattern of particularly severe, stable, and aggressive antisocial behaviors (Frick, Ray, Thornton, & Kahn, 2014). Individuals with secondary CU traits represent a subpopulation that are distinguished from those with primary CU traits by…

Age-related changes in personality variables that may contribute to the reduction of symptoms of eating disorders with adult development were examined. Undergraduate sorority women (n = 52; mean age = 19.85 years) were compared with alumnae of the same sorority (n = 34; mean age = 33.74 years). Eating pathology was correlated with greater…

The category breadth indexes of 128 children at each age (4 and 11) were related to personality data available at ages 3, 4, 7, 11, and 14 in form of independent California Child Q-Sort (CCQ) description. Results suggested that breadth of categorization at age four correlated negatively with intelligence, while at age 11 it correlated positively…

As part of a longitudinal study, Matching Familiar Figures Test (MFFT) performance was assessed at age 11 and related to California Child Q-Sort evaluations obtained both concurrently and at age 14. Offers evidence for a "competence" interpretation rather than a "conceptual tempo" interpretation of the MFFT and strongly…

Used between-family analyses of data from adolescent twin girls to offer new evidence that early menarche is associated with earlier initiation and greater frequency of smoking and drinking. Found that association of pubertal timing with substance use could not be explained by between-family confounds, and pubertal timing influence on drinking…