Developmental scholars, parents, and policymakers alike have long heralded the opening years of life as disproportionately influential. Recent work on adolescence has revealed, however, greater influence of these later years--but without considering how experience during these two periods interact. We address this issue by studying adverse…

Children vary in the extent to which their development is shaped by particular experiences (e.g. maltreatment, social support). This variation raises a question: Is there no single level of plasticity that maximizes biological fitness? One influential hypothesis states that when different levels of plasticity are optimal in different environmental…

Both genetic and environmental factors contribute to individual differences in aggression. Catechol-O-methyltransferase Val158Met (COMT), a common, functional polymorphism, has been implicated in aggression and aggression traits, as have childhood experiences of adversity. It is unknown whether these effects are additive or interactional and, in…

In this study, we explored informant characteristics as determinants of parent-teacher disagreement on preschoolers' psychosocial problems. Teacher characteristics were included in the analyses, in addition to child and parent factors. Psychosocial problems of 732 4-year olds from a Norwegian community sample were assessed by parents and teachers…

Observed parents' coparenting of 15-month-old sons to test 2 hypotheses: (1) greater differences in parents' demographic factors, personality, styles of relatedness, and child-rearing attitudes would forecast more unsupportive coparenting; and (2) the adverse effects of spousal differences would be amplified by family stress. Results supported…

Families were compared at one, three, and nine months to examine the effects of active or passive exposure to the Brazelton Neonatal Behavior Assessment. Either the mother or both parents were the target of the intervention. Assessments of interaction behavior between parents and infants revealed no effects of the experimental intervention.…

Examined the determination of individual differences in marital change across the transition to parenthood. Results indicated parents whose postnatal experiences turned out less positive and more negative than anticipated experienced more negative change in marriage. Prenatal expectations of well-educated parents generally matched their…

To replicate and extend the results of an initial longitudinal study of the transition to parenthood, 67 couples, each bearing their first child, were repeatedly studied via interviews, observations, and questionnaires from the last trimester of pregnancy through the ninth postpartum month. Several consistent patterns of marital change were…

Used data on parenting and family climate gathered six times during childhood and adolescence to predict intergenerational relations between young adult children and parents. Found that more supportive family environments and child-rearing experiences forecasted more positive parent-child relationships in young adulthood. Effects of unsupportive…

Examined how parenting style and inter-parental conflict lead to changes in toddler boys' inhibition between ages 1 and 3. Found that boys who are less inhibited than expected at age 3 have parents who are relatively more insensitive, intrusive, and negative in parenting style than are parents of children who remain more consistent over time.…

Examined changes in spouses' experiences of their mates and marital relationships from last trimester of pregnancy through 3 years postpartum. Found 4 distinct patterns of marital change (accelerating decline, linear decline, no change, modest positive increase). Findings from 128 families revealed that patterns of marital change were determined…

Assessed marital change following childbirth in a longitudinal study of 72 couples. Analysis indicated the transition to parenthood resulted in somewhat unfavorable changes, but spouses scoring high on marital functioning tended to do so with their new parent role as well. (JAC)

To determine whether 1 or 2 dimensions of infant emotionality best characterized infant functioning, parental reports (10 months) and elicited emotion (12-13 months) were examined. Found that early positivity (12-13 months) predicted later positivity (18-20 months) better than later negativity, with the reverse being true of early negativity.…