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What was Schatcher and Singer's methods in this experiment?
1. Participants were told that the researchers were studying the “effect of vitamin injections on visual skills” and gave participants a shot of adrenaline or saline (control).
2.Participants who received the shot of adrenaline were either informed about the side effects of the injection, or not informed, and then all participants were exposed to either a happy confederate or an angry confederate.