Match each word/phrase to its definition. Question content area bottom Part 1 Drag each word or phrase given above to the appropriate definition below. A person, object, or some other well-defined item upon which a treatment is applied A treatment that looks just like the "real" treatments in a study. Could be an innocuous medication or a procedure that follows the same steps as the experimental procedure, but leaves out a key intervention. Any combination of the values of the factors (explanatory variables) The effect of two factors (explanatory variables) on the response variable cannot be distinguished. A quantitative or qualitative variable that represents the variable of interest Nondisclosure of the treatment an experimental unit is receiving The variable whose effect on the response variable is to be assessed by the experimenter