To make sure that unintended variables do not confound a study, many potential variables
A) Are kept constant, or the same, across conditions
B) Can be made to co-vary with the independent variable
C) Are ignored
D) Are transformed into another measurement scale

Question

Quizplus · Accepted Answer

Keeping potential variables constant across conditions ensures that their effects do not confound the study and allows for a clearer understanding of the relationship between the independent variable and the outcome variable. Co-varying potential variables with the independent variable or ignoring them can introduce confounding variables and decrease the internal validity of the study. Transforming potential variables into another measurement scale may help standardize the variable but does not necessarily control for its effects on the study outcome.

To Make Sure That Unintended Variables Do Not Confound a Study