Dr.Sesay is testing a new antidepressant.He gives the experimental group the new medication and the control group sugar pills that look exactly the same as the real medication.He is excited about all the good he believes this new medication will do for people.When he gives his control group the sugar pills,he shows little emotion,but when he hands out the antidepressants,he grins at his participants.To control for ______________,Dr.Sesay should use a _______________________ design instead.
A) experimenter expectancy effects;double-blind
B) placebo effects;correlational
C) experimenter expectancy effects;correlational
D) placebo effects;double-blind

Question

Quizplus · Accepted Answer

Dr. Sesay's behavior suggests he might unintentionally influence the participants' responses through experimenter expectancy effects. A double-blind design, where neither the participants nor the experimenters know who receives the actual medication or placebo, would help control for these effects.

DrSesay Is Testing a New Antidepressant