Participants in a double-blind study (where neither experimenters nor participants know which group receives the treatment) show improvement in blood pressure recordings after receiving a sugar pill or a new medication that treats high blood pressure. The results suggest
A)placebo effect
B)false diagnosis of high blood pressure
C)an effective blood pressure medication
D)confounding variables

Question

Quizplus · Accepted Answer

The improvement in blood pressure recordings after receiving a sugar pill suggests the placebo effect, where participants experience a perceived or actual improvement in their condition despite receiving a non-active treatment.

Participants in a Double-Blind Study (Where Neither Experimenters nor Participants