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 attempts to follow the development of an "awareness" of the importance of consistency in a logical system with three elements and one operation. Subjects were 127 male and female students, 9-, 11-, 14-, and 16-years-old. (Author/SDH)

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…

The family-management skills of parents of seventh- and tenth-grade boys were related to each of two criterion measures of delinquency: police contacts and self-reported delinquency. The measures of parent monitoring and discipline were shown to correlate significantly with both criterion measures. (Author/RH)

Examined the developmental sequence through which adolescents progress in solving a physics problem (balance beam ratio and proportion) and a social problem (predicting the behavior of a story character). Although most of the 9- through 19-year-olds performed at predictable and similar developmental stages on each task, a minority were more…

Three groups of sixth, eighth, and tenth graders took pre- and posttests on a Piagetian problem and a problem that evoked a misconception. Two intervention groups engaged in group transactions intended to create inter- and intrapersonal conflicts or took a multiple-choice test. Results indicated that treatment groups progressed on the Piagetian…