Diffusion of treatment

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Patrick was studying effects of small rewards (such as candy, gum, and soda pop) on intrinsic motivation. He tested fifth-grade children in a special room set aside by the school. Although he asked participants not to tell the students about the study, several children talked to their friends on the playground. Now some of his participants ask, "When will I get a candy bar?" when they arrive at the testing room. What is the problem?

Reference no: EM13113517

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