A study in which neither the experimenter nor the subject knows the value of the independent variable is called a __________ study.
A) counterbalanced
B) single-blind
C) deceptive
D) double-blind
E) confounded

Question

Quizplus · Accepted Answer

A double-blind study is one in which neither the participants nor the experimenters know who is receiving a particular treatment. This approach is used to prevent bias in research results.

A Study in Which Neither the Experimenter nor the Subject