A placebo is
A)sometimes called a sugar pill.
B)a noneffective or inactive independent variable.
C)used in double-blind experiments.
D)All of these answers are correct.

Question

Quizplus · Accepted Answer

All of the answer choices are correct. A placebo can be a sugar pill, but it can also be any other inactive substance that is used to create a control group in an experiment where the independent variable is not a physical intervention. Placebos are frequently used in double-blind experiments where neither the participants nor the researchers know who is receiving the treatment or the placebo.

A Placebo Is