In an experiment where neither the physicians nor the subjects know who was receiving the experimental drug or placebo is an example of a
A)non-confounding experiment.
B)secure experiment.
C)true experiment.
D)double-blind experiment.
E)post hoc experiment.

Question

Quizplus · Accepted Answer

A double-blind experiment is one in which neither the physicians nor the subjects know who was receiving the experimental drug or placebo. This type of experiment is designed to reduce the potential for bias or placebo effects in the results. All other choices are either incorrect or do not accurately describe this type of experiment.

In an Experiment Where Neither the Physicians nor the Subjects