Observed in a laboratory setting how dyads, ages 4 and 6 years or 6 and 8 years, negotiated division of toys. Found that children used a preponderance of constructive problem-solving strategies rather than contentious tactics. Degree of conflict of interests and quality of sibling relationships predicted use of problem-solving and contentious…

Human children 18-24 months of age and 3 young chimpanzees interacted in 4 cooperative activities with a human adult partner. The human children successfully participated in cooperative problem-solving activities and social games, whereas the chimpanzees were uninterested in the social games. As an experimental manipulation, in each task the adult…

This study was designed to determine whether modifying the task characteristics of the Stage 6 sensorimotor means-end problem (by introducing additional visual cues) aided task solution in children. Subjects were 80 children, ages 20-33 months. (CS)

Study 1 asked second through sixth graders, who could answer inclusion questions, to answer such questions without empirical information about relative quantity and to predict whether subordinate classes could be made larger than their superordinate classes. In study 2, children's performance in two part-whole domains, classes and collections, was…

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.…

Brief training sessions can improve first-graders' performance on double-classification problems. Questions are raised about whether or not the basic intellectual ability underlying performance has also been increased. (WY)

Experiment I establishes that the ability to remember the slope of a line develops between three and four years of age. In Experiment II, 15 children with a mean age of four years and six months who had discriminated both slope and left-right problems under successive presentation were tested on these same discriminations under simultaneous…

Identified some experiences that lead to preschool children's transition from less to more systematic problem-solving strategies. Receiving encouragement to adopt more analytic attitudes and encountering problems with perceptually salient differences on a relevant dimension were the two types of experiences examined. (Author/DB)

Results of a study of 38 preschool children observed and videotaped during performance on a jigsaw-puzzle task indicate that puzzle solutions accompanied by a high rate of verbalizations were judged as more proficient, solved with a high rate of puzzle-solving moves, and completed in a shorter period of time. (Author/RH)

Investigates the asserted differences in reasoning between adults and second, fourth, and sixth graders in a manipulation of variables task using class inclusion and story problems with common everyday situations. Results are discussed in terms of sensible reasoning and problem-solving skills. (CM)

Finds that, after being exposed to many isolation-of-variables assessment problems, most college subjects made immediate and substantial gains in formal reasoning, while preadolescents made gradual, modest gains. (RH)

A sequence of interpersonal problems was administered to fourth and fifth graders who initially performed below age norms on perspective taking. The effect of this semistructured training, which actively engaged the children in developing solutions, was compared to that of a "no treatment" and to that of an activity group. (JMB)

Cognitive organization in problem solving was investigated using a transfer paradigm. (SB)

Explores the role of premature cognitive closure in the development of inferential reasoning among 62 children aged 7, 9, and 12 years through two studies. Results indicate that despite a strong tendency to close on single alternatives, most children correctly assigned nonzero probabilities to each of the possible alternatives. (RJC)

Investigated the possibility that some kindergartners exhibit patterns of affective reactions associated with helplessness. Results indicated that, after they were criticized by their teachers, some kindergartners showed affective reactions and made self-evaluations associated with motivational helplessness. Reactions were related to conceptions…