Previous research on sensation seeking (SS) was dominated by a variable-oriented approach indicating that SS level has a linear relation with a host of problem behaviors. Our aim was to provide a person-oriented methodology--a probabilistic clustering--that enables examination of both inter- and intra-individual differences in not only the level,…

Despite broad consensus that most juvenile crimes are committed with peers, many questions regarding developmental and individual differences in criminal style (i.e., co-offending vs. solo offending) remain unanswered. Using prospective 3-year longitudinal data from 937 14- to 17-year-old serious male offenders, the present study investigates…

Reviewed alcohol-related activities by prime-time television characters over a five-year period. Analysis showed alcohol was the preferred beverage used by characters, especially in recent years. All kinds of characters were seen drinking except youth. However, consequences of alcohol abuse and response of others were not always shown. (Author/JAC)

To investigate the development of symbolic play, 18 Japanese normal boys and girls were individually tested once every even-numbered month from when they were 12 to 24 months of age. Symbolic play was generally defined as behavior which represents actual or imagined experience by using objects, gesture or language alone or in combination. The…

Explores particulars that may partially account for the remedial influence on development of interactions between infants and caregivers. Videotaped interactions between 20 prematurely born toddlers and their mothers were described in terms of dyadic joint attention to features of the environment. (Author/RH)

Convergence between temperament ratings from two different sources (mothers and observers) and observer codings of peer-peer interaction was assessed. (Author/MP)

Determined whether individual neonate characteristics could be detected and reliably measured in preterm infants. Results showed that preterms were highly self-consistent in their reactions to stimuli from neurobehavioral assessments. Highly reliable individual differences among infants were also seen. Individual consistencies and differences in…

Reviewed are longitudinal studies of aggressive behavior and reaction patterns in three groups of males (preschool children, school-age children and adults), as observed or inferred by individuals other than the subjects themselves. (Author/MP)

Thirty-two preadolescents were observed in a longitudinal study of attachment and subsequent social development, and case studies of four friendship pairs were conducted. Findings suggest a process model of friendship formation based on repetition of infant attachment history in establishing children's preadolescent friendships. Proposes a 3-stage…

Research in the area of social cognition has suggesed that actual stimuli don't predict later judgments and responses as well as cognitive representations of and cognitive responses to those stimuli, in the form of attitudes, impressions, or causal attributions. To identify the factors most important in predicting adolescent smoking, a 4-year…