Which of the following is NOT used to help control for subjects' behavior and expectations in an experimental study?
A) placebo
B) blind
C) random assignment
D) a selection factor

Question

Quizplus · Accepted Answer

A selection factor refers to the process of selecting subjects that have specific characteristics, and is not directly related to controlling for subjects' behavior and expectations in an experimental study. Placebo, blind, and random assignment are all techniques that are commonly used to help control for subjects' behavior and expectations in experimental studies.

Which of the Following Is NOT Used to Help Control