Which of the following variables causes only the outcome variable, but not the predictor variable?
A) A common-causal variable
B) An extraneous variable
C) A mediating variable
D) A third variable

Question

Quizplus · Accepted Answer

An extraneous variable affects only the outcome variable without influencing the predictor variable. It is external to the cause-and-effect relationship being studied and can introduce variability in the outcome, potentially confounding the results if not controlled.

Which of the Following Variables Causes Only the Outcome Variable