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A psychological researcher designs study to determine whether positive feedback affects self-esteem. The researcher requires each participant to toss 20 coins into a coffee can that is 3 feet away. Have a participants are told that their performance is superior, and the other half are told that their performance is well below average. Although some of the participants want to quit tossing coins after a few attempts, they are told that once they begin the study they have to complete it. After the coin toss, participants take a test measuring self-esteem. Following the test, all participants are debriefed and told that information about their performance was false. Results of the study indicate that participants who are told the performance as well below average report lower levels of self-esteem then do those who are told their performance is superior. Which of the following violations of ethical guidelines occurs in

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