_____, which is used in an effort to reduce the likelihood that expectancies or knowledge of condition will influence the results, is a design in which both the participants and the administrators of treatment are unaware of which treatments are being provided.
A) An inter-rater design
B) A single-subject design
C) A single-blind procedure
D) A double-blind procedure

Question

Quizplus · Accepted Answer

A double-blind procedure is used to prevent both the participants and the administrators of the treatment from knowing which treatment is being administered, thereby reducing the potential for bias in the results.

_____, Which Is Used in an Effort to Reduce the Likelihood