When two-, three-, four-, and five-year-olds were tested for knowledge of sex role stereotypes and preferences for sex-typed activities, boys' stereotype acquisition lagged behind preference development. Girls' data were ambiguous. Boys displayed equally strong tendencies to endorse same-sex activities; girls displayed a stronger tendency to…

Children, ages three, five, and seven, were asked to evaluate a series of children's drawings for their own likes and dislikes and for the likes and dislikes they imagined for individuals older and younger than themselves. Results suggest that children as young as three can judge drawings for others differently from the way they judge them for…

Production and judgment tasks were used to investigate five- through eight-year-old children's metalinguistic awareness of pragmatic rules concerning direct and indirect requests for action and information. Results showed several effects for age of child and for type of request. (Author/RH)

Examined five possible rules that children might use to interpret the terms "big" and "little." Increasing consistency in rule usage appeared to be the most significant developmental progression for children between the ages of three and five with respect to these terms. (Author/RH)

Findings obtained from 90 first- through fifth-grade children indicate that children grasp the direct relationships between speed and distance and between duration and distance before they grasp the inverse relationship between speed and duration--a finding which may represent a general principle of cognitive development. (Author/RH)

The normative rule began to predominate at age 10 and was the only rule employed by 13-year-olds. In contrast, almost all 7-year-olds simplified the equalization task to an ordinal level. Four different nonalgebraic rules were identified. Neither young children's tendency to simplify nor older children's capacity to quantify could be detected in…

Investigates the nature of and changes in early memory demands and assesses the relationship between memory demands and memory performance among 10 children 30 and 42 months old and their mothers. Results suggested that mothers' memory demands have an impact on children's memory performance--providing at least partial support for Vygotsky's…

Two experiments examined hyperactive children's tendency to underfocus their attention during learning. Taken together, the results of both experiments demonstrated the validity of the attentional diffusion hypothesis and indicate the need to assess the central processing demands associated with central and incidental learning in order to evaluate…

The ability of 40 children four and five years of age to discriminate reflections and rotations of visual stimuli was examined in a kinetic imagery task. Results revealed that prediction accuracy was associated with the existence of orientation markers on the stimuli, as well as age, sex, type of discrimination, and several interactions among the…

A group of 43 children classified as either behaviorally inhibited or uninhibited at 21 months were observed at four years of age in situations designed to evaluate behavior with an unfamiliar peer, heart rate and heart rate variability to cognitively challenging tasks, reluctance to answer difficult questions, and differential fixation of an…

Results obtained from 27 infants ranging in age from 10 to 12 weeks indicated that infants develop expectancies regarding how stimuli occurring in particular contexts should behave based on their prior experiences with these stimuli. (Author/RH)

Findings of this observational study of 74 families tentatively support the conclusion that the psychological characteristics of emotional distress, authoritarian child-rearing values, and negative perceptions of children partially mediate the influence of some demographic/stressful life conditions on the positive and negative behaviors of…

Examines, in three experiments, infant sensitivity at 20, 30, and 36 weeks of age to 3-dimensional structure of a human form specified through biomechanical motions. Findings are interpreted as suggesting that infants, by 36 weeks of age, are extracting fundamental properties necessary for interpreting a point-light display as a person. (Author/BE)

Examines, in two experiments, 5-month-old infants' sensitivity to auditory-visual specification of distance and direction of movement. One experiment presented two films with soundtracks in either a match or mismatch condition; the second showed the two films side-by-side with a single soundtrack appropriate to one. Infants demonstrated visual…

Male and female nonparent adults rated tape-recordings of initial, middle, and final 10-second segments of pain and hunger cries on four 7-point Likert-type scale items describing how urgent, arousing, aversive, and sick cry segments sounded. Results suggest that different segments of cries resulting from the same stimulus provide different…