One hundred and thirty-two children were selected from kindergarten and fourth grade to serve as subjects in an experiment which investigated the effects of cognitive development and need states on altruistic behavior. (Author/DB)

Does not support the hypothesis that cognitive regression takes place as a part of normal aging. (RL)

Examined two hypotheses that might account for episodic-recall differences in preschool children: (1) young children's differential tendencies to attend to and interact with presented stimuli account for verbal free-recall differences, and (2) improvements in episodic-recall memory are knowledge-dependent among preschool children. (Author/DB)

Reveals a two-factor structure (general retentiveness and memory) in the Wechsler Memory Scale for total male and female samples and for both males and females aged 13 to 39 years and 40 to 59 years but not for males or females aged 60 to 88 years. (Author/RL)

This study had two purposes: (1) to determine when children distinguish ambiguous from precise messages and when they can resolve ambiguity through additional questioning, and (2) to identify whether implicit messages were more difficult to identify than explicit ones. All children found ambiguous messages significantly more difficult to…