Internal validity is concerned with which of the following?
A) the representativeness of the sample test units
B) the extent that the observed relationship between the independent variable and dependent variable is generalizable to the real world
C) the measurement of extraneous variables that are internal to the experimental setting itself
D) the extent to which the change in the dependent variable was actually due to the independent variable
E) the control of the complex variables not having an effect on the independent variable

Question

Quizplus · Accepted Answer

Internal validity is concerned with the extent to which a study can establish a cause-and-effect relationship between the independent variable and dependent variable, and D is the option that best describes this concept. It involves controlling all possible extraneous variables that could have influenced the dependent variable, so that researchers can be reasonably certain that any change in the dependent variable was caused by the independent variable.

Internal Validity Is Concerned with Which of the Following