To what does the term internal validity refer?
A) the degree to which results of a study can be generalized from one sample to another
B) the process of subject selection
C) the development of a treatment
D) the degree to which the results of a study can be attributed to the manipulation of the independent variable

Question

Quizplus · Accepted Answer

Internal validity refers to the degree to which a study's results can be attributed to the manipulation of the independent variable. It is essentially the extent to which a study accurately measures what it intended to measure, and rules out alternative explanations for the observed results.

To What Does the Term Internal Validity Refer