Two experiments studied preschool children's ability to infer numerosity from correspondence between two sets. Found that children were able to make inferences as early as three years of age. However, differences between the two conditions suggest production deficiencies in young children's use of counting as a problem-solving strategy when they…

Examined four- and five-year-old children's abilities to use a newly learned strategy in recall tasks. Subjects in strategy training groups showed increases in sorting, group naming, and category self-cuing activities in posttraining tasks. (BC)

Investigated in 3 studies whether 2- to 4-year-olds make accurate causal inferences on the basis of patterns of variation and covariation. Found that all three age groups considered information from various patterns of variation and covariation in judgments regarding two objects and activation of a machine. Three- and 4-year-olds used the…

The correspondence of left-right confusion in children to the bilateral symmetry in the nervous system was tested by presenting left-right and up-down discrimination-learning tasks to 80 preschoolers who viewed these stimuli from either an upright or 90-degree-rotated body position. The data contradict anatomical model predictions. (Author/BN)

Examines social fantasy play in relation to several indices of social competence in a sample of 91 preschoolers (ages 35 to 69 months). Results indicate the amount and complexity of fantasy play significantly predicted four competency measures: teacher ratings of peer social skill, popularity, affective role taking, and a behavioral summary score…

Two studies tested three- and five-year-old children's ability to use multiple-referent and inclusion strategies to interpret new words. In both studies, children interpreted labels for single objects at the basic level. The multiple-referent and inclusion strategies led children to interpret novel words at the superordinate level. (RH)

Two studies involving five- and nine-year-old children examined the effects of planning with a partner as well as the relation of collaborative planning to subsequent solo planning. Results suggest that cognitive gains resulting from joint problem solving between children and adults or peers may be more likely with shared task responsibility. (RH)

Examined the effects of preevent stereotypes and postevent suggestions on the memory of 176 preschoolers whose classrooms were visited by a stranger. Results from open-ended interviews after 10 weeks indicated that control participants provided accurate reports of the visit, while those exposed to stereotypes, suggestions, and stereotypes plus…

Examined preschool children's recall of deictic verbs of motion presented within stories either consistently or inconsistently with the protagonist's viewpoint. Found that 3- and 4-year-olds accurately recalled verbs of motion (come, go, bring, take) that were consistent with the protagonist's viewpoint but made substitution errors of…

Preschoolers viewed stimulus sets comprised of a sample picture and three types of matches and were asked to choose a match that "went with" each sample. Children's choices indicated that a shift occurs between 3 and 4 years of age from a taxonomic bias to a thematic bias. Animate sample stimuli enhanced children's tendency to adopt…

To assess relations between behaviors in a particular circumscribed caretaker-child interaction setting and child behavioral dispositions assessed by more extensive observation, caretaker-child interaction data was collected for 40 children across several days in a nursery school free-play setting. These data were related to child behavioral…

To investigate affective and dispositional factors in the motivation of children's helping, 60 children ranging from preschool to sixth grade were observed in laboratory distress incidents. Results indicated that helping tended to be positively correlated with positive affect and negatively correlated with negative and neutral affect. (Author/RH)