If a study is high in internal validity, then the researcher can be fairly certain that changes in the ____ were indeed due to changes in the ____.
A)construct validity of the cause; construct validity of the effect
B)independent variable; dependent variable
C)external variable; internal variable
D)hypothesis; theory

Question

Quizplus · Accepted Answer

In a study with high internal validity, the researcher can be confident that changes observed in the dependent variable are directly caused by manipulations of the independent variable, ruling out the influence of external factors.

If a Study Is High in Internal Validity, Then the Researcher