Abstract
A group of 12 children were enrolled in a preschool class. During the first experimental stage they participated in special events contingent on token earning. Tokens were acquired by engaging in a variety of study behaviors. After a level of study behavior was established under this contingency, the special events were provided noncontingently. Study behavior declined throughout the noncontingent stage. Reestablishing the original contingencies produced an immediate return to the initial level of study behavior. Noncontingent special events reduced the amount of independent study, group participation, and cooperative study. The study behavior of each child was altered in the same direction, though differences in the magnitude of effects from child to child were observed.
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Selected References
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