This study examines crossover effects of adolescent substance misuse preventive interventions on academic success in college. It evaluates pathways of influence on college grades, via effects on school engagement, problem-solving skills, and substance misuse in high school. Data were collected as part of an Randomized Controlled Trial (RCT)…

This study examined patterns of (a) observed racial socialization messages in dyadic discussions between 111 African American mothers and adolescents (M[subscript age] = 15.50) and (b) mothers' positive emotions displayed during the discussion. Mothers displayed more advocacy on behalf of their adolescents in response to discrimination by a White…

This study examines whether feeding infants formula supplemented with long-chain polyunsaturated fatty acids (LCPUFA) improves cognitive function of 9-month-olds. Participants included 229 infants from 3 randomized controlled trials. Children received either formula supplemented with docosahexaenoic acid and arachidonic acid, or a control formula…

Three experiments were performed in an attempt to integrate ideas and methods developed to study problem solving with those developed specifically to study children's inquiry strategies. (Author/JMB)

The contraceptive effectiveness of 155 single women between 15 and 25 years of age was found to be significantly and negatively related to a means-end problem-solving ability and a belief in internal control and significantly and positively related to a belief in chance control. (JMB)

A set of covariation problems was structured so that the solution pattern across problems would indicate the judgment rule used by each subject. A developmental trend across subjects in fourth, seventh, and tenth grades and in college demonstrated rule shifts toward use of increasingly accurate rules. (Author/RH)

The study attemped to link cognitive and social problems seen in girls with Turner syndrome by assessing the girls' ability to process affective cues. Seventeen 9- to 17-year-old girls diagnosed with Turner syndrome were compared to a matched control group on a task which required interpretation of affective intention from facial expression.…

This study explored 5- to 17-year-olds' use, self report, and awareness of verbal problem-solving strategies and strategy effectiveness. Findings indicated that children's verbal strategies moved from overt, to partially covert, to fully covert forms with age. Self-reports of strategy use were accurate yet incomplete. Strategy awareness was low…

The mother, father, and adolescent siblings from 675 families were observed interacting in problem-solving sessions. Siblings were monozygotic twins, dyzygotic twins, or full siblings in nondivorced families and full, half, and unrelated siblings in stepfamilies. Results suggested a greater genetic component to adolescent behavior than to parent…

According to Humean framework, relations are judged to be causal to extent that they are characterized by regularity, continuity, and covariation among college students and college-bound 11- and 14-year-olds. Presents subjects with information about one of the following indices: potential causal factor covaried with effect and potential causal…

Investigates the hypothesis that strategy development might occur within or beyond the period of formal operations, but that this development might be discernible only beyond the second order of analogical relations. Adolescent strategy development in the solution of third-order analogies resembled in pattern the preadolescent development found in…

Examined the relationship between individual interactional style, individual problem-solving behavior, and family problem-solving effectiveness in 431 intact rural families with 2 children, 1 of whom was in seventh grade. Results indicated that a hostile interactional style directly predicted destructive problem-solving behavior, whereas a warm…

Examines the findings of 53 studies of sex differences in propositional logic, combinatorial reasoning, and proportional reasoning tasks. Finds sex differences for the latter two tasks to be vulnerable to Rosenthal's "file drawer" problem and effect size to be small for all tasks. Discusses possible explanations for sex differences in…

Geometric matrix problems were presented to 11- and 14-year-olds and adults to investigate latency to solution as a function of number of elements (1-3) and of transformations (0-2) that had to be considered for correct solution. At all ages latencies increased as the number of elements and number of transformations increased. (Author/DB)

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…