This study examined whether changes in children's self-reported Big Five dimensions are represented by (developmental) personality types, using a cohort-sequential design with three measurement occasions across 5 years (four cohorts, 9-12 years at T1; N = 523). Correlates of, and gender differences in, type membership were examined. Latent…

Clarifies intentions and basis of remarks made in Macfarlane (1963) concerning the relationship of early character structure to later character structure and life outcomes. (Author/RH)

Activity level was measured by two independent methods, a mechanical recording device and teacher descriptions, in a sample of 129 children (65 boys and 64 girls), participating in an ongoing longitudinal study. (Author/MP)

Examined longitudinally changes in inhibition from toddler age to age 4 and age 7 years. Found that temperament change in children who tested as inhibited or uninhibited as toddlers was more common than remaining extremely inhibited or uninhibited, but that change was largely limited to intermediate groups. Subgroups distinguished by responses on…

Examines the relationship between self-evaluation and social comparison in adolescent males during their last two years of high school. The question is empirically examined in two realms that capture primary features of the adolescent transition: physical transformation and social role reorganization. (Author/RH)

Observed 193 children at 4.5 years who had been classified at 4 months as high or low reactive to stimulation for signs of inhibited or uninhibited behavior. Children classified as high reactive were less spontaneous and less sociable than low-reactive children, but only a small proportion maintained a consistently inhibited or uninhibited…

Compares the responses of 65 mothers and 42 fathers who completed the Child Rearing Practices Report first when their child was three years old and again at 12 years. Despite many changes in the families, considerable continuity in childrearing orientations was shown. Shifts in emphasis coincided with developmentally appropriate areas for change.…

To test the inversion of intensity interpretation based on negative relations between newborn and pre-school intensity behaviors, 106 normal children were examined at the neonatal and pre-school periods. Interpretations of intensity behaviors at both periods and their longitudinal relations are discussed. (Author/SB)

Used a longitudinal sibling research design and a large, nationally representative sample of 15- to 22-year-old siblings to study shared and unshared environmental influences on delinquency. Although no unshared family environmental influences were found for sisters and mixed-sex siblings, they may have existed for brothers. Data suggested…