All but which of the following are examples of double-blind studies?
A) medical experiments where a new drug is tested and one group gets the new drug and the other gets a placebo and the researcher does not know who got which drug
B) domestic violence studies where intervention is designed to reduce repeat offenses by focusing upon victim strategies when the victim does not know whether they are in the control or experimental group
C) any study where the researchers and the subjects do not know whether they are in the experimental or control groups
D) any study where the researchers know who is in the experimental and control groups but promise not to tell the subjects

Question

Quizplus · Accepted Answer

Double-blind studies involve both the researchers and the participants being unaware of who is in the control and experimental groups. Option D does not fit this criteria as the researchers still know who is in the groups, even if they promise not to tell the participants. Therefore, options A, B, and C are all examples of double-blind studies.

All but Which of the Following Are Examples of Double-Blind