Reports three experiments conducted to investigate factors controlling performance of nonreinforced verbal imitation. (WY)

The performance of 80 mildly mentally retarded and 133 nonretarded children (102-177 months old) were compared on a rotary pursuit task to determine whether augmentation of response-produced feedback by supplementary sensory feedback would facilitate skill acquisition. (Author/SW)

Results of a study on sex differences in performance expectancies among college students indicate that positive feedback may reduce such differences. The study also suggests, however, that the effect of previous feedback can be cancelled by changes in the performance situation, such as a change in instructor and/or subject matter. (Author/GC)

To examine the hypothesis that children's difficulties on traditional perspective-taking tasks are in part due to intellectual realism (inappropriately including what is known to exist in a representation of what is seen), 60 three-, four-, and five-year-old children were asked to select representations of various arrangements of blocks.…

Hyperactive children were significantly more affected by both low and high appeal distractors than were the normal children. (Author)

Individuals react differently to caffeine intake but tests indicate that ingesting coffee has a minimal influence on motor performance. (JD)

For a good handspring vault the gymnast should reach the horse with good upward velocity and proper body angle. (JD)

Tests are described that will objectively measure playing ability and discriminate between successful and unsuccessful basketball players. (JD)

The physiological mechanics of kayaking and canoeing are examined. (JD)

Research shows that there is a positive relationship between high energy levels and creativity and giftedness. To provide for the high energy levels, these children need to be kept busy at beneficial activities such as independent study, individualized programs, and/or enrichment classes. (Author/PHR)

Explored relationships between marriage partners' self-concept and their evaluation of their own and their spouses' marital role performance. Marriage partners' self-concept and perceived response of spouses were related to evaluation of their own and their spouses' role performance. There was no relationship between spouses' response and…

Two experiments probed 8-month-olds' ability to represent different kinds of entities: rigid, cohesive objects; flexible, cohesive objects; and non-rigid, non-cohesive portions of sand. Results suggest that the processes by which infants individuate and track entities are sensitive to material kind, rigid cohesive objects occupy a privileged…