Examined within-family differences in parenting and problem behavior in 95 nondivorced and 421 remarried families. Within-family differences in parenting and problem behavior were greatest in remarried families where siblings did not share the same biological parent. Differential treatment was also more strongly related to problem behavior in this…

Examined precursors and correlates of sexual intercourse patterns among 10th- and 11th-graders. The transition to onset of sexual intercourse was associated with increases in delinquency and slower increases in school grades. Earlier onset and a more persistent pattern of sexual intercourse were associated with more childhood problem behaviors,…

Tested a model of family conflict and coercion that linked economic stress in family life to adolescent symptoms of internalizing and externalizing emotions and behaviors. Subjects were 378 seventh graders and their families in rural Iowa. Found that spousal irritability and hostile exchanges over money matters increased the likelihood of…

A total of 114 infants at three age levels (11, 18, and 28 weeks) were rated by their mothers on a termperament questionnaire and subjected to a habituation procedure. Results suggest that subject loss in habituation studies may be the result of nonrandom individual difference factors and not just the result of temporary fluctuations in state.…

Two studies investigated two groups of young children at the ages of four and eight years, respectively. Subjects were required to solve a simple problem task by performing a response opposite to that demonstrated by an adult. Girls' performance was significantly worse than boys', regardless of the sex of the model. (Author/CI)

The frequency and distribution of social problem-solving strategies, goals, targets, and outcomes were coded during preschoolers' free play. Flexibility and persistence in problem-solving sequences were examined, and the relative importance of strategies, goals, targets, and the identity of the problem solver in predicting social problem-solving…

Children ages 7 to 10 and 11 to 14 years of age responded to both moral and conventional forms of transgression. Responses to moral transgressions revolved around intrinsic consequences of acts upon victims, while responses to conventional breaches focused on aspects of the social order. Sex differences were found. (Author/MP)

Children of 18 months classified as secure or insecure/avoidant by means of the Ainsworth Strange Situation were observed at home and in a playgroup. Teachers and observers rated girls classified as insecure/avoidant as being more difficult to deal with and having more difficulty with peers than girls rated as securely attached. (PCB)

Relations among hormone levels, emotional dispositions, and aggressive attributes were examined in 56 boys and 52 girls, aged 9 to 14 years. (PCB)

Attempted to replicate findings of a previous study which found that mother-toddler interaction during problem solving was related to the child's prior attachment security. Examined the relationship between problem-solving interactions on the one hand, and mother-child interactions at home and infant temperament on the other. (PCB)

A concept of seductive mother-toddler relationships was initially validated. Subsequent research showed "seductiveness" was stable, though transformed, from 24 to 42 months; the same mothers were not found to be seductive with male or female siblings; mothers seductive with boys were derisively hostile toward daughters. (Author/RH)

Examined factors associated with young children's aggression. Observed 104 toddlers during free play with same-sex peer, with both mothers present. Found that early out-of-home care was not related to aggression. Boys were more aggressive than girls. Observed aggression and mother-reported externalizing problems were associated significantly with…

Parents of Swedish twin pairs ages 7 to 9 years and of British twin pairs ages 8 to 16 years completed the Child Behavior Checklist. Found that genetic factors influenced aggressive antisocial behavior to a greater extent than nonaggressive antisocial behavior, which was also significantly influenced by the shared environment. There was a…