The term "internal validity" refers to the degree to which the:
A) groups in the sample were equivalent before beginning the study.
B) independent variable can be interpreted as being responsible for the effects on the dependent variable.
C) researchers followed the design they selected for the study.
D) results of the study can be generalized to groups other than the one in the study.

Question

Quizplus · Accepted Answer

In studies of causality, internal validity pertains to whether the effect found in the study may have been caused by a third, often unmeasured, extraneous variable rather than by the treatment.
Internal validity does not mean the groups were equivalent.
Following the design selected for the study represents the integrity of the study.
External validity concerns the ability of the results of the study can be generalized to groups other than the one in the study.

The Term "Internal Validity" Refers to the Degree to Which