In a study of the effect of meditation on stress, participants were randomly assigned to two conditions: one in which they recei
ved meditation instruction and the other in which they received instruction in what they thought were meditation practices. The latter group of participants is the _____ group.
A placebo-controlled group is a group of individual that receives an inactive medicine or substance, placebo, to prove research while other groups get real medication or medical therapy.
Placebo-controlled studies are related to test medical therapy. It is developed especially to have no effect and just to create a placebo effect.
Thus, the correct answer is - the placebo-controlled.