Three types of concepts were examined: concepts defined by sufficient features, concepts which possessed necessary and sufficient features, and concepts composed of exemplars with distinctive features. Second- and fifth-grade subjects learned the concepts in a procedure encouraging abstraction of common features or a procedure fostering exemplar…

Four experiments studied effects of difficulty of word identification on optional conceptual processing by second, third, and fifth graders, and college students in a cued recall task. Results indicated that contrastive processing facilitates recall, and that difficulty of word identification may limit the extent of optional contrastive…

Explores the generalization of changes in children's preferences for easy or difficult goals, when their preferences are induced by exposure to peer models playing a novel athletic game. Subjects played the same game immediately after exposure, participated in a "spelling bee" three weeks later, and chose puzzles of differing levels of…

This study of 114 children between seven and nine years used a procedure for directly observing child-produced and experimenter-produced strategies to examine the transitional period of strategy development. Findings revealed gradual changes in children's ability to produce, and to benefit from, a strategy of selective attention. (RH)

Assesses the degree of difficulty parents attribute to specific socialization tasks; explores the relation between parents' perceived difficulty and children's perceived and actual competence in these two domains; and determines whether the ease or difficulty of these child rearing tasks, as perceived by parents, varies as a function of the…

Tested whether intrinsic motivation depends on matching cognitive level and task demands and assessed effects of rewards and praise on intrinsic motivation. Children preferred tasks just beyond their ability levels. Praise had mixed effects: rewards decreased intrinsic motivation among highly motivated children but did not influence intrinsic…

When kindergarten, second grade, fourth grade, and college students listened to stories and were asked to predict and explain the story character's behavioral or emotional reaction to a new event, the use of personality attributions to predict and explain future reactions increased with age. (RH)