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- [1] EFFECTS OF GROUP REINFORCEMENT IN CLASSROOM-BEHAVIOR MODIFICATION BULLETIN OF THE BRITISH PSYCHOLOGICAL SOCIETY, 1975, 28 (MAY): : 256 - 256
- [3] USING GROUP CONTINGENCIES WITH PUNISHMENT AND POSITIVE REINFORCEMENT TO MODIFY AGGRESSIVE BEHAVIORS IN A HEAD START CLASSROOM PSYCHOLOGICAL RECORD, 1974, 24 (04): : 491 - 496