A double-blind procedure is used in an effort to reduce the likelihood that expectancies of condition will influence the results; therefore, _____ of treatment are unaware of which treatments are being provided.
A) only the participants
B) both the participants and the administrators
C) only the administrators
D) only the researchers

Question

Quizplus · Accepted Answer

In a double-blind procedure, both the participants and the administrators (those administering the treatments) are unaware of which treatments are being provided to prevent their expectations from influencing the results.

A Double-Blind Procedure Is Used in an Effort to Reduce