Which of the following independent variables would most likely require a manipulation check?
A) amount of light in the room
B) noise level in the room
C) number of items on an exam
D) participants' moods

Question

Quizplus · Accepted Answer

Manipulation checks are often used when the independent variable involves internal states or subjective experiences, such as participants' moods, to ensure that the intended manipulation has the desired effect. Variables like the amount of light, noise level, and number of items on an exam are external and more directly measurable, making manipulation checks less necessary for these conditions.

Which of the Following Independent Variables Would Most Likely Require