"External Validity" of an Experiment Refers to the Extent to Which

Multiple Choice

"External validity" of an experiment refers to the extent to which

A) the operational definitions of variables really do represent the concepts they are meant to capture.
B) we can be confident that the experiment is testing the hypothesis we think it is testing.
C) we can make causative statements about the relationship between the dependent and independent variables.
D) the results of an experiment can be generalized across people, settings, times, treatments, and outcomes.