In a research study, investigators at one of the study sites are not told what is actually being tested, nor are they told who the research subjects are. This is an example of:
A) double-blind technique.
B) random sampling.
C) poor research design.
D) biased research techniques.
E) a controlled experiment.

Question

Quizplus · Accepted Answer

This scenario describes the double-blind technique, which is used to reduce the risk of bias in research studies. By not disclosing information about the intervention or the study subjects, the investigators are less likely to influence the outcomes or be influenced by their own biases. This is an example of a double-blind technique, where neither the investigators nor the research subjects know who is receiving the treatment or placebo. This helps to eliminate any potential bias in the study.

In a Research Study, Investigators at One of the Study