______ variables are those variables in an experiment that are manipulated by the experimenter.
A) Internal
B) External
C) Independent
D) Dependent

Question

Quizplus · Accepted Answer

Independent variables are the variables that are deliberately manipulated by the experimenter to observe their effect on the dependent variable. Internal variables refer to factors within the experiment that could affect the results, while external variables refer to factors outside the experiment that could affect the results. Dependent variables are the variables being measured or observed as the outcome of the experiment.

______ Variables Are Those Variables in an Experiment That Are