The function of the double-masked design is BEST described as guarding against:

Question

Quizplus · Accepted Answer

The double-masked (or double-blind) design is used to prevent both the participants and the experimenters from knowing which participants are in the control group and which are receiving the experimental treatment, thereby guarding against participant and experimenter expectancies. This helps to eliminate bias in the results that could stem from either the participants' or the experimenters' expectations about the efficacy of the treatment.

The Function of the Double-Masked Design Is BEST Described as Guarding