Internal validity refers to __________.
A) having the properties that allow the conclusion that the independent variable manipulation produced the changes in the dependent variable
B) having the properties that allow the conclusion that the dependent variable manipulation produced the changes in the independent variable
C) having the properties that allow the conclusion that the dependent variable(s) reflect real-world variables
D) having the properties that allow the conclusion that the independent variable(s) reflect real-world variables

Question

Quizplus · Accepted Answer

Internal validity refers to the extent to which a study provides evidence of a cause-and-effect relationship between the independent variable(s) and the dependent variable(s). This means that the study has to have the properties that allow the conclusion that the independent variable(s) manipulation produced the changes in the dependent variable(s). Therefore, choice A is the correct answer. Choices B, C, and D are incorrect because they do not represent the concept of internal validity.

Internal Validity Refers to __________