Reviews two books, the first of which explores how children conceive possible ways to solve problems and differentiate among real, possible, and necessary solutions. The second book explains the construction of knowledge as a dialectical tension of the opening of new possibilities constrained by increasingly stronger necessities from which a…

Studied frequency and style of help-seeking in 18- and 24-month olds observed at free play and problem-solving. Found that younger toddlers sought less help than older toddlers; both groups sought more help during problem solving than in free play. Older toddlers increased vocal help-seeking whereas younger toddlers sought help through vocal and…

Administered The Matching Familiar Figures Test to 45 seven- and eight-year-olds to assess the relationship between cognitive style and temperamental variables such as distractibility, persistence, and mood. (HOD)

Describes an experiment undertaken to identify the home experiences of 1- to 3-year-old children which result in competence at the age of 6. (BRT)

Examined children's use of the representativeness heuristic with two types of decision problems adapted from research with adults--standard representativeness problems and conjunction fallacy problems. Findings on both problems indicate the use of decision heuristics in the early grade-school years, and suggests these should be the years for…

Argues that the dichotomy between domain-specific and general theories of cognitive development addressed in the "Merrill-Palmer Quarterly" special issue is unproductive. Suggests that polarities of generality and specificity exist in creative tension as seen through developmental processes. (Author/BB)