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Starkweather, Elizabeth Kezia – 1966
A research project was conducted to study the effects of an 8-week prekindergarten enrichment program and of two 15-month preschool enrichment programs. Pretest and posttest scores of experimental and control kindergarten children (a sample of 100 out of 1,000 subjects) showed that both groups made significant gains in all ability categories o f…
Descriptors: Achievement Gains, Concept Formation, Control Groups, Disadvantaged