Which of the following involves a change in behavior resulting from the person’s expectation of change rather than from the experimental manipulation itself?
a) cross-generational effect
b) double-blind control
c) placebo effect
d) cohort effect

C. Placebo effect

Explanation:

The placebo effect is a suggestive effect in which the person reflects a positive change because they have faith or confidence in the treatment they are receiving when they are receiving a product without any active substance.

The placebo effect has been found in treatments administered with drugs, therapies, surgical procedures, and even in medical claims that are transmitted to the patient. It is used in scientific research to analyze the effectiveness of drugs or medical treatments.

When the person realizes that the process has a placebo effect, it ends, and the patient feels the symptoms of his illness again.

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