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The placebo effect best illustrates the impact of ________ on feelings and behaviors.
A) the double-blind procedure
B) random sampling
C) positive expectations
D) hindsight bias
Positive Expectations
The belief that good things will happen in the future, which can influence behavior and attitudes in a positive way.
Placebo Effect
A beneficial effect produced by a placebo drug or treatment, which cannot be attributed to the properties of the placebo itself, and must therefore be due to the patient's belief in that treatment.
Double-blind Procedure
A research or testing method in which neither the subjects nor the experimenters know which subjects are in the control or experimental groups, to eliminate bias.
- Understand the concept and impact of the placebo effect in psychological research.
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Learning Objectives
- Understand the concept and impact of the placebo effect in psychological research.
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