Dr.Livingston is conducting a study on the effectiveness of a new time-release antidepressant medication.Once a week,participants receive a small white pill from Dr.Stanley,which they take immediately without knowing if the pill is the new medicine or a placebo.Dr.Livingston then observes the participants,without knowing which participants received the placebo.This type of study uses the
A)blind procedure.
B)blind procedure with placebo.
C)naturalistic observation approach.
D)double-blind procedure.

Question

Quizplus · Accepted Answer

This study uses the double-blind procedure, where both the participants and the experimenter (Dr. Livingston) are unaware of which participants received the placebo or the new medication. This helps to eliminate any potential biases or expectations that could influence the results.

DrLivingston Is Conducting a Study on the Effectiveness of a New