When a researcher conducts an experiment and is fairly certain that changes in the independent variable caused changes in the dependent variable, that experiment is said to be high in ____.
A)construct validity
B)construct validity of the effect
C)internal validity
D)external validity

Question

Quizplus · Accepted Answer

Internal validity refers to the extent to which a study can demonstrate that a cause-and-effect relationship exists between the independent and dependent variables, excluding the possibility that the observed effects are due to other variables.

When a Researcher Conducts an Experiment and Is Fairly Certain