A pharmaceutical company has developed a new medication to treat anxiety. In order to check how well the medication responds, neither the experimenter nor the subjects know who received the medication. By doing this, the pharmaceutical company attempts to eliminate the chance of the subject's or experimenter's preconceived notions affecting the results. This is called:
A) experimenter bias.
B) double-blind design.
C) subject bias.
D) blind design.

Question

Quizplus · Accepted Answer

This is known as a double-blind design, where both the experimenters and the participants are unaware of who is receiving the treatment or the placebo, thus minimizing both experimenter and subject bias.

A Pharmaceutical Company Has Developed a New Medication to Treat