Variance in participants' scores that is not due to the independent variable is either _________ variance or __________ variance.
A)treatment; error.
B)error; confound.
C)error; primary.
D)confound; systematic.

Question

Quizplus · Accepted Answer

Variance not due to the independent variable can be attributed to error variance (random variability) or confound variance (systematic variability due to extraneous variables).

Variance in Participants' Scores That Is Not Due to the Independent