A self-report measure of conflict and aspects of warmth in the parent-child relationship was completed by 1,330 11-year-old twins, 1,176 of whom completed the inventory again 3 years later. On average, adolescents' perceptions of the quality of the parent-child relationship declined consistently and moderately between age 11 and age 14. Conflict…

165 students, from the fifth, seventh and ninth grades were asked to solve written problems involving fractions. In the problems a reference quantity (RQ) was multiplied by a fraction (FR), yielding the value of a compared quantity (CQ). The fraction expressed either an part-whole ratio (PW), or a part-part ratio (PP). Six type of problems were…

This study investigated how preadolescents and adolescents solve problems involving three temporal dimensions. Specifically examined was the question of whether speed and space information would influence the time judgments of 90 subjects 9, 12, and 15 years of age who solved 16 word problems describing the displacements of two cars. The problems…

Physical educators must teach preadolescents about safe and realistic strength-training methods commensurate with their needs and physical capabilities. The risk of injuries can be reduced by setting prudent goals, using equipment tailored to the age level, and educating students about their unique growth state. (PP)

Risk factors for early adolescents' (700 between the ages of 10 to 13) delinquency were compared between groups of children high and low in childhood adversities. The samples represented young people from the two former Germanies (200 from former East and 500 from West Germany) who were interviewed in person. Additional information was gathered…

Examined age differences in the use and effectiveness of social support processes emitted during conversations about real life negative events between preadolescent, adolescent, and adult friends. Participants were 86 same-sex friendship dyads. Results indicated that talking to friends alleviated negative affect in all ages, but factors predicting…

Systematically explored how three different initial training contexts affect children's and adults' interpretation of novel action verbs. Subjects included 54 3-yearolds, 60 10-year olds, and 60 college-age adults. Findings suggest a hierarchy of verb learning strategies, especially among the youngest children. (DR)

Examined students' self-descriptions of situations, individuals, and incidents that evoked feelings of guilt to determine developmental and gender differences in guilt. Content analysis revealed changes in percentage of students at three grade levels who spontaneously mentioned a situation as guilt producing. Striking and distinctive patterns in…

Over time, mother-child relationships in families with remarried mothers grew increasingly similar to those in families whose parents had never divorced. Relationships in single-mother families remained different from those in the other two types of families. Stepfathers were less likely to be authoritative than were nondivorced fathers. (BC)

In families whose parents had never divorced, families with a single mother, and families whose mother had remarried, there were (1) some differences for child gender and family type in children's behavior toward siblings; (2) few effects of gender composition of sibling dyads; and (3) a decline in the level of sibling interaction over time. (BC)

Examined differences in moral judgments as they relate to informational assumptions. Sixth graders, high school seniors, and college students evaluated events concerning welfare, justice, and rights and reevaluated them in light of the opposite information. The relation between evaluations and informational assumptions was significant within each…

Cognitive ability of nondiabetic children and early and late onset diabetic children was compared. Diabetic children scored in the normal range in intelligence and academic performance, but showed evidence of school difficulties and memory deficiencies. Children's perceived self-competence and parents' reports of children's functioning and…

Used contextual and transactional approach to examine age and gender differences in experience and consequences of life stress in clinic-referred 8- to 18-year olds. Found that adolescent girls experienced highest interpersonal stress, self-generated within parent-child and peer relationships. Preadolescent girls experienced highest independent…

Event-related potentials (ERPs) to tone pairs and single tones were measured for 16 participants with specific language impairment (SLI) and 16 age-matched controls aged from 10 to 19 years. The tone pairs were separated by an inter-stimulus interval (ISI) of 20, 50 or 150 ms. The intraclass correlation (ICC) was computed for each participant…

Background: Using longitudinal data from the NICHD Study of Early Child Care and Youth Development, we examined behavior problems and social and academic outcomes from ages 9 through 12 in children classified into five trajectories of physical aggression, on the basis of maternal ratings obtained from 24 months through 9 years (N = 1195). Methods:…