The reinforcement of disagreement in a small group

The present studies were conducted to determine whether differentially reinforcing decisions of a three-person group can modify how often individuals will disagree in making a decision. The results indicate that disagreement is likely to occur more often in groups where reinforcement in achieving a decision is made contingent on disagreement as compared with groups where reinforcement is not contingent on this interaction. Some methodological, theoretical and practical implications of the findings are discussed.