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Peer reviewedShemesh, Michal; Lazarowitz, Reuven – Journal of Biological Education, 1989
Presented are the results of an analysis of the cognitive stages of tenth-grade pupils using a six-week unit on the respiratory system. The research design, instruments, and data analysis are discussed. A variety of cognitive levels was found and may be related to learning outcomes. (CW)
Descriptors: Biology, Cognitive Development, Cognitive Structures, Developmental Stages
Download full textChang, Lin; Becker, Betsy Jane – 1987
Data drawn from 30 journal articles and ERIC documents reporting on gender differences in natural science achievement were re-examined. Three meta-analysis methods were used: (1) vote counts and vote-counting estimation procedures; (2) tests of combined significance; and (3) analyses of effect sizes. The three methods produced seemingly…
Descriptors: Academic Achievement, Comparative Analysis, Effect Size, High Schools
