The term equivalent groups means that.
A)the independent variable affects all groups equally
B)the dependent variable is the same among all groups
C)only chance factors influence differences among groups after the independent variable has been manipulated
D)the groups of participants do not differ in any systematic way prior to the manipulation of the independent variable

Question

Quizplus · Accepted Answer

Equivalent groups are groups of participants that do not differ in any systematic way prior to the manipulation of the independent variable. This is important in experimental research because it allows researchers to infer that any differences found between the groups after the manipulation of the independent variable are due to the independent variable itself and not to other preexisting factors.

The Term Equivalent Groups Means That