Caroline is participating in an experimental study in which she is taking an herbal supplement and the researcher measures her perceived energy levels for several weeks.Although she doesn't know it,the supplement she is given in the study does not contain the herb of interest.However,Caroline feels as though she has more energy than before,and she attributes it to the herbal supplement.This effect is called a(n)____.
A)maturation effect
B)false positive
C)counterbalancing effect
D)placebo effect

Question

Quizplus · Accepted Answer

The given scenario describes the placebo effect, in which an inactive substance or treatment produces a perceived positive outcome due to the individual's belief and expectations. Caroline had no idea that the supplement didn't contain the herb of interest, yet she perceived an increase in energy levels, which can be attributed to the placebo effect.

Caroline Is Participating in an Experimental Study in Which She