<em>Placebo effect:</em> In psychology, the placebo effect is defined as a particular phenomenon whereby a few people tend to experience a benefit or gain after the application of sham treatment or an inactive substance. The substance involved in the placebo causes no medical effects, for example, saline water, sugar pills, etc.
<em>The placebo effect</em> is based on the positive thinking pattern of an individual who believes in the treatment procedure is going to work.
<em>The given statement's answer would be 35%.</em>
