Internal validity means that
A) the change in the dependent variable can be attributed to the effect of the independent variable.
B) results can be generalized to other situations.
C) confounds were not well controlled.
D) all of the variables have construct validity.

Question

Quizplus · Accepted Answer

Internal validity refers to the ability to draw causal conclusions from the relationship between the independent and dependent variables. Option A is the correct answer because it reflects that the change in the dependent variable can indeed be attributed to the effect of the independent variable, which is the essence of internal validity. Option B refers to external validity, not internal validity. Option C implies a lack of internal validity since confounds were not controlled. Option D refers to construct validity, not internal validity.

Internal Validity Means That