Researchers conducted a randomized comparative experiment to test a new drug to help balding men keep their hair. Forty-two percent of the placebo

Researchers conducted a randomized comparative experiment to test a new drug to help balding men keep their hair. Forty-two percent of the placebo group kept or increased their hair compared to 86% of the men getting the new drug.

What can we conclude?

The results of this experiment cannot be trusted because of the placebo effect.

The placebo effect is not present in this experiment because the men are randomly assigned to treatments.

The placebo effect partially explains the results seen in the men taking the new drug.