_____ is the extent to which the results of an experiment can be attributed to the manipulation of the independent variable rather than to some extraneous variable.
A)Confounding
B)Internal validity
C)Regression to the mean
D)External validity

Question

Quizplus · Accepted Answer

Internal validity is the extent to which the results of an experiment can be attributed to the manipulation of the independent variable rather than to some extraneous variable. Confounding refers to a situation where the effects of the independent variable and an extraneous variable are not separated. Regression to the mean refers to the tendency for extreme scores, or outcomes, to move closer to the average or mean over time. External validity refers to the extent to which the results of a study can be generalized to other populations or settings.

_____ Is the Extent to Which the Results of an Experiment