A study is said to have internal validity if the researcher can be relatively confident that ____.
A)the same results would occur if the experiment were replicated
B)changes in the independent variable caused changes in the dependent variable
C)the operational definitions used in the study were chosen well
D)the sample was representative of the broader population of interest

Question

Quizplus · Accepted Answer

Internal validity refers to the extent to which a study can demonstrate that changes in the independent variable caused changes in the dependent variable, ruling out the possibility that the observed effects are due to other variables.

A Study Is Said to Have Internal Validity If the Researcher