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Prestwood, S.J. (1979). Knowledge of Results and the Proportion of Positive Feedback on Tests of Ability. Applied Psychological Measurement, 3(2), 155.
You are about to send the following abstract:
Prestwood, S.J. (1979). Knowledge of Results and the Proportion of Positive Feedback on Tests of Ability. Applied Psychological Measurement, 3(2), 155.