Richard is a researcher in a pharmaceutical company. His company develops a new drug to treat chronic joint pain in humans. He wants to check the effect of this drug on a group of elderly people. He divides the group into an experimental group and a control group. He gives the new drug to the experimental group, while he gives a non effective look-alike drug to the control group. Both groups give the same result. Identify the effect felt by the control group, despite not taking the drug.

Placebo effect  

Explanation:

Placebo effect: In psychology, the term placebo effect is referred to as a phenomenon or concept whereby a few persons experience benefit or gain after the implementation of a particular inactive substance, thing, or a shams treatment.

Generally, the placebo is considered as a specific substance that possesses zero medical effects, for example, sugar capsules, sterile water, and saline solution.

In the question above, the given statement represents the placebo effect.

dude you should crop your image so only the question shows. but   can you explain it better

answer; cognitive dissonance;