The end-state comfort effect has been observed in recent studies of grip selection in adults. The present study investigated whether young children also exhibit sensitivity to end-state comfort. The task was to pick up an overturned cup from a table, turn the cup right side up, and pour water into it. Two age groups (N = 20 per group) were…

Presents four studies designed to explore the ability of 6- to 9-month-old infants to differentiate objects on the basis of configuration or structure and to recognize a particular configuration after varying experiences with it. It was found that 9-month-olds but not 6-month-olds were capable of recognizing the invariant form of objects.…

The early phase of imitation was studied in children between 6 and 18 months by means of the presentation of 22 actions. (SB)

Children aged 2 1/2, 3, and 3 1/2 years who had demonstrated appropriate uses for a set of objects, were asked to perform these same actions with objects which varied in similarity in the reference object, or with no object present. (JMB)

Active touch, passive touch with a moving object, and passive touch with a still object were examined developmentally with 192 subjects in first, third, and fifth grades and college. (Author/JMB)

This experiment investigates the relation of a free play experience to subsequent performance on problem solving tasks among children aged 4 to 10. Ninety children were divided into 3 age groups and were assigned in pairs of free play and non-play treatment conditions. Children were paired by block design test scores to control for perceptual…

Presents a study of social- and object-directed behaviors of preschool children in same or mixed age dyads. Subjects were three- and five-year-oldpreschool children. (BD)