Relevance of cognitive and developmental variables to observational learning and imitation is also discussed. (Authors/MB)

Examined continuity, stability, and change in behaviors reflecting infant reactivity and regulation. Subjects were 100 infants of 5 and 10 months old. Found that infant behaviors during frustrating situations showed both change and continuity, but the relationship between reactivity and regulation changed in that both factors became more…

Examined patterns of mothers' and fathers' differential treatment of first-born and second-born school-age siblings in 110 families and the links between parents' differential treatment and children's well-being and dyadic family relationships. Found that parental patterns were linked to differences between the siblings' well-being and that…

Describes two measures of gender salience, one assessing the use of the gender dimension in classifying new information and the other assessing its use in making affiliation choices. The developmental course of gender salience from age three to age seven and the relation between salience and sex-role development were examined. (HOD)

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)

Observed a group of 46 children classified at 20 months as either behaviorally inhibited or uninhibited, and 18 children who were classified aa falling at neither extreme at 5.5 years of age, in contexts designed to evaluate behavior in social situations and heart rate, heart variability, and pupillary dilation to cognitive tasks. (HOD)

Contrasts a fixed-rate presentation list with one in which half the items in a single list were presented at a fast rate and half at a slow rate during paired associative learning with 24 children (aged 8 to 22 years) who were diagnosed with having an attention deficit disorder. (HOD)

Distinctions between psychological versus task helping and attempted versus achieved help were applied to the helping behaviors of normal and retarded children of 2 age groups observed in natural settings. (Authors)

Type A and Type B children's efforts to achieve were investigated. Type A's solved more arithmetic problems than did Type B's in a no-deadline condition. Type A's held a weight, which matched individual hand strength, 50 percent longer than did Type B's. Ambiguous performance criteria seemed to increase Type A efforts to excel. (Author/DB)

Examined mother-child interaction predictors of initial levels and changes in child aggressive and disruptive behavior at school from kindergarten to third grade in 585 mother-child dyads. Found that for boys, high coercion and nonaffection were particularly associated with the high-increasing-aggression trajectory, but for girls, high levels of…

Examined memory functions in individuals with and without autism. Found that the group with autism performed significantly worse than the nonautistic group on temporal order memory, source memory, supraspan free recall, working memory and executive function but not on short- and long-term recognition, cued recall, or new learning ability. (MOK)

Studied whether behavioral styles at age 3 are linked to personality traits at age 18 after identifying 5 temperament groups (undercontrolled, inhibited, confident, reserved, and well-adjusted). Results pointed to continuities across time. (DR)

Examined association of three maternal regulating behaviors with children's positive and negative behaviors toward siblings in 40 Japanese families. Observed maternal regulating behaviors more frequently when younger sibling was still in early developmental stage. Older siblings' negative behaviors toward younger positively correlated with…

Examined relationships between family financial resources, academic competence, and socioemotional adjustment during early adolescence. Subjects were 90 African American youths and their married parents in the rural South. Found that parents with greater financial resources were less depressed and more optimistic, and their children were better…