Medical researchers want to determine if hypnosis is better at pain control than either a sugar pill (placebo)or motivating instructions.The researcher randomly assigns participants to the three groups and determines how long they can keep their hands in a bowl of ice water.What is the manipulated variable?
A)Hypnosis
B)Instructions
C)Sugar pill
D)Pain control group

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The Answer of Medical researchers want to determine if hypnosis is better at pain control than either a sugar pill (placebo)or motivating instructions.The researcher randomly assigns participants to the three groups and determines how long they can keep their hands in a bowl of ice water.What is the manipulated variable?
A)Hypnosis
B)Instructions
C)Sugar pill
D)Pain control group

Medical Researchers Want to Determine If Hypnosis Is Better at Pain