How can it be determined if an experiment is valid?
A)The observed change in the dependent variable is in fact due to the independent variable.
B)The results of the experiment apply to the real world outside the experimental setting.
C)The results do not account for the effects of extraneous variables.
D)Both A and B are correct.
E)A, B, and C are correct.

Question

Quizplus · Accepted Answer

A valid experiment requires that the observed change in the dependent variable is due to the independent variable being tested (A), and that the results of the experiment can be applied to the real world outside the experimental setting (B). Other factors that could influence the results of the experiment must be controlled or accounted for, such as extraneous variables (C). Therefore, both options A and B are correct, but C is also important. E is not correct because it includes the less specific and more inclusive option of "all of the above."

How Can It Be Determined If an Experiment Is Valid