The authors examined effects of feedback and explanation on false belief performance. Thirty-three children (42-54 months; 15 girls, 18 boys) were randomly assigned to four treatment conditions: explanation, feedback, feedback researcher explains, and feedback child explains. Children completed false belief tasks during pretraining, 8 training…

Investigated developmental differences in males' (ages 3-20) descriptions of video scenes in which various interpersonal situations were depicted. Alternative paradigms for study besides egocentrism-decentering approaches are discussed. (DP)

A brief discussion of children's perceptions of animate and inanimate objects. It is suggested that studies on child animism must consider the child's criteria used in the classification of animate objects, as well as those used for inanimate objects. (Author/ED)

This study provided data showing that with increase in age there is an increase in spontaneous alternation behavior in preschool children. Mental age rather than chronological age is indicated as a more meaningful predictor of a child's tendency to seek out and approach varying stimulation. (GO)

Twenty-one male and 21 female adolescents were tested individually for conservation of mass, weight, and volume. (CM)

Reviews the idea of critical readiness periods for both language learning and cognitive development and relates it to mental subnormalities. (Author/SDH)

This study was designed to assess the acquisition of conservation of number on equal addition tasks through scalogram analysis to determine if this analysis defines a scale or continuum. Ten block tasks administered to 85 kindergarten children validated Piaget's theory that cognitive development is sequential and continuous. (Author/ED)

The developmental relations between anticipatory imagery, conservation of length, and operational structures were investigated in 80 kindergarten and third-grade children by means of imagery tasks combined with a length conservation task. (MS)

Forty-four 7- and 8-year-old boys were classified as having high or low concrete reasoning ability or as being in a transitional state. Findings indicated that frustrated boys exhibit regression more than nonfrustrated boys and that the extent to which they regress is dependent upon cognitive level. (GO)

This study identified new methodological variables which might affect the responses of second and third grade children to Piagetian conservation tasks. (GO)

Examined the relationship between selected maternal attitudes and the sex, sex role preference and level of psychological differentiation of the preschool child. Data indicate that extreme sex role typing works against learning. (GO)