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Accelerating the Development of Formal Thinking in Middle and High School Students III: Testing the Permanency of Effects.
Peer reviewed Peer reviewed
Shayer, Michael; Adey, Philip S. – Journal of Research in Science Teaching, 1992
Two years after the end of a two-year intervention program set within the context of science learning intended to promote formal operational thinking, achievement of students (n=234) was tested by their results on British National examinations taken at age 16. Male experimental subjects achieved an average of 40 percent more grades of C or above…
Descriptors: Abstract Reasoning, Cognitive Processes, Developmental Stages, Educational Research
Accelerating the Development of Formal Thinking in Middle and High School Students IV: Three Years after a Two-Year Intervention.
Peer reviewed Peer reviewed
Shayer, Michael; Adey, Philip S. – Journal of Research in Science Teaching, 1993
Three years after end of 2-year intervention program intended to promote formal operational thinking, achievement of students initially age 11 was tested by their results on British National examinations, taken at age 16 (experimental group n=88, control group n=103). In comparison with control classes, the effect size for science was 0.67,…
Descriptors: Academic Achievement, Developmental Stages, Educational Research, Effect Size