Respuesta :
The placebo effect is when a research participant changes his\her behavior because of the expectations he\she holds of how to behave rather than the procedures of the experiment.
What is placebo effect?
Placebo effect is when the patient's physical and mental health gets improved by taking a placebo or "dummy" treatment.
In placebo effect, the patient respond to the treatment only because they believe that it is affecting them.
Just like you give a child sugar pills to reduce his\her pain and he\she take it as medicine and feel better.
To know more about placebo effect :
https://brainly.com/question/10467057
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