A type of study that does not allow the subjects or the experimenters to know who is in the control group is:
A) quasi-experimental.
B) cross-sectional.
C) double blind
D) single blind.

Question

Quizplus · Accepted Answer

A double blind study is designed to eliminate bias by preventing both the subjects and the experimenters from knowing who is in the control group. In a single blind study, only the subjects are unaware, but the experimenters are aware. Quasi-experimental and cross-sectional studies do not necessarily involve control groups and blinding.

A Type of Study That Does Not Allow the Subjects