Investigated continuities in mother-infant interaction observed at home, maternally perceived infant difficulties, and infant developmental competency. Also assessed were background characteristics and possible variables moderating maternal report of satisfaction with adjustment. A total of 128 dyads were assessed when infants were 6 and 13 months…

Interperceptual experiences of teachers with eighth grade boys (indentified as either internally or externally controlled) were investigated and compared. (ST)

Examines reactions to menarche and the subsequent effects of this experience as a function of preparation for and timing of menarche. A questionnaire including measures of responses about first menstruation, current symptoms, and self-image was completed by 639 girls in fifth through twelfth grades. (Author/MP)

Investigates the predictability of cognitive differences at 12 months from infant and maternal behaviors at 4 months. Overall, the results show that some individual differences in cognition may be predictable across the first year of life. (Author/RH)

Looking times of 96 preschoolers were recorded as they were habituated on slides of sex-typed toys. After habituation, subjects were shown a test series of 24 slides. (Author/SS)

Examined relations between reactivity (peak response) and regulation (response dampening) in 6-month-olds' cortisol and behavioral responses to inoculation. Found that reactivity and regulation were unrelated for both cortisol and behavior, suggesting both measures are needed to characterize more accurately infant response to stress. Found…

This study evaluated the intent attributions and feelings of emotional distress of relationally and physically aggressive children in response to instrumental and relational provocation contexts. Findings indicated that physically aggressive children exhibited hostile attributional biases and reported relatively greater distress for instrumental…

Studied 112 preterm infants to determine developmental changes and stability of individual differences. Results indicate significant developmental gains with age, and highly significant individual stability of performance across age. (RJC)

Explored the roles of genes and environment in masculinity and femininity during pre- and early adolescence in 70 twins of 8-14 years. Results revealed significant genetic influences in all measures. Environmental influences were specific to each individual and not shared by members of the same twin pair. (RJC)

Eight- through 11-year-olds watched photographic slides of faces of former preschool classmates and controls, once while their skin conductance was measured and again while reporting whether or not they recognized the faces. Both verbal report and skin conductance data showed low but above-chance differentiation between children's response to…

Four experiments tested four month olds on visual discrimination tasks. As the time allotted to solve these problems was shortened, infants who looked at stimuli for a short amount of time performed better than other infants, indicating that performance superiority was attributable to speed of processing. (BC)

Three experiments examined how flexibly two- to four-year-old children use the words "big" and "little" in normative, perceptual, and functional contexts. Results showed that children switched easily from a normative context but made errors when asked to switch to a normative context. (MDM)

Demonstrated that time sampling is inaccurate for estimating durations or frequencies of behaviors. Also concluded that (1) individual or group differences can change depending on whether time sampling or continuous sampling is used; and (2) error rates are high when bout lengths of behaviors are short or when interval length is long. (BC)

Examined (1) the possibility that children organize general statements into meaningful and consistent psychological concepts of themselves; (2) individual differences revealed in these concepts; (3) the possibility that these differences show stability over a one-month period. (PCB)