Monolingual children were assigned to two groups to examine the role of reinforcement in language acquisition. One group was differentially reinforced for use of foreign vocabulary. The other group was first reinforced nondifferentially for use of either native or foreign language and later differentially reinforced for foreign language use. (PCB)

Relationship between maternal ratings of temperament and operant learning was examined in 18 2- to 3-month-old infants. Subjects participated in a conjugate reinforcement experiment; mothers of subjects completed the Carey and McDevitt Revised Infant Temperament Questionnaire 2 to 3 days before the learning study. Two temperament dimensions,…

Contrasts effects of three modes of mother/child interaction on children's subsequent compliance with maternal directives. Subjects were 39 children from lower-middle-class families, ranging in age from approximately three to four-and-a-half. Responsive play and noninteractive conditions produced higher levels of compliance than the untrained free…

Developmental changes in conditions engendering pride and embarrassment were explored. Among other results, developmental change was found in the standards used to evaluate emotional experiences; references to social comparison increased with age and references to mastery decreased. (PCB)

Maternal behaviors within mother-infant games were examined to determine the amount, type, and functional value of maternal helping behaviors. A total of 17 mother-infant pairs were videotaped on monthly visits while playing five separate games. The study employed a skill-centered analysis to examine maternal scaffolding. (Author/RH)

Mothers' and fathers' socialization of one- and two-year-old children's sex-typed play behaviors was examined. For each parent, dyadic interactions were videotaped in the home on two occasions six months apart. Results are discussed in terms of implications for the social learning account of sex-role development. (Author/RH)

Examines the effects of providing different reasons for young children inteacting with a peer during play. Shows that dispositional or situational information about an unknown peer affects children's impressions of that peer differently, depending on the age of the child. (HOD)

The family-management skills of parents of seventh- and tenth-grade boys were related to each of two criterion measures of delinquency: police contacts and self-reported delinquency. The measures of parent monitoring and discipline were shown to correlate significantly with both criterion measures. (Author/RH)

Identifies reliable mother action-child reaction patterns and assesses the effect of maternal consequences for those patterns on the probability of their subsequent occurrence. (HOD)