The type of validity concerned with whether differences between groups are due to the manipulated variable is referred to as
A) internal validity.
B) external validity.
C) content validity.
D) construct validity.

Question

Quizplus · Accepted Answer

Internal validity refers to the degree to which a study's findings relate to a causal relationship between the independent variable and the dependent variable. It addresses whether the manipulation of the independent variable affects the outcome measure. Thus, internal validity is concerned with whether differences between groups are due to the manipulated variable.

The Type of Validity Concerned with Whether Differences Between Groups