Use of strategies to eliminate interference from irrelevant information in memory was investigated for 11-, 15-, and 18-year-olds. A directed forgetting paradigm was introduced. Results suggest that 11-year-olds use adequate selective remembering strategy, but not selective rehearsal: most 15- and 18-year-olds did. (Author/DST)

Three studies explore the development of discrimination and memory for symmetry in preschoolers four to six years of age. Issues addressed include the young child's ability to discriminate and reproduce symmetry, and the effects of pattern orientation and complexity on the young child's symmetry discrimination and reproduction. Results indicate…