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Robison, Floyd F.; And Others – Journal for Specialists in Group Work, 1989
Describes representative single-subject research designs and related statistical procedures for group counselors to study the effects of interventions in groups. Concludes that despite limitations, single-subject designs are useful for obtaining information about intervention effects with groups in direct service contexts that can be compared to…
Descriptors: Counseling Effectiveness, Group Counseling, Groups, Intervention

Linn, Robert L. – Educational Evaluation and Policy Analysis, 1979
The internal validity of the RMC models, especially Model A, is examined. Concern centers on limiting evaluation to cognitive outcomes, using constant percentile as the no-treatment expectation, and using norms for one test to establish the expected no-treatment performance level for another test. (MH)
Descriptors: Achievement Gains, Compensatory Education, Elementary Education, Evaluation Methods