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Peer reviewedRichards, James M., Jr. – Journal of Educational Psychology, 1976
Growth is estimated most accurately by procedures involving the pretest-posttest difference, and for practical purposes all estimates involving this difference have approximately equal accuracy. In particular, the simple difference between pretest and posttest scores seems about as accurate as any other estimate, easier to compute, and meaningful…
Descriptors: Achievement Gains, Comparative Analysis, Computer Programs, Correlation
PDF pending restorationCooley, Carl R.; And Others – BIA Education Research Bulletin, 1976
Comparisons were made of test scores derived from a sample of American Indian students attending grades 2 through 10, living in a Bureau of Indian Affairs dormitory, and enrolled either in an English as a Second Language Program (N=43) or in the regular school program (N=87) to determine ESL impact on Indian students' English vocabulary,…
Descriptors: Academic Ability, Achievement Tests, American Indians, Comparative Analysis
