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Edwards, Roger H.; Bridewell, Joy L. – 1979
Possible causes for the discrepancy between the ABT report on the national Project Follow Through and the Saint Louis, Missouri program were discussed: (1) ABT data were positively biased because of non-random, differential attrition from the program and control groups; (2) positive ABT data were due to use of a particular cohort group; or (3)…
Descriptors: Achievement Gains, Affective Objectives, Compensatory Education, Elementary Education