The multiple experimental groups with one control group design is used to:
A)approximate the control of experiments in nonexperimental situations.
B)assess the interaction effects of more than one independent variable.
C)assess the effects of differing amounts or intensities of a single independent variable or treatment.
D)control threats to external validity.

Question

Quizplus · Accepted Answer

The multiple experimental groups with one control group design is primarily used to assess the effects of differing amounts or intensities of a single independent variable or treatment. This design allows researchers to compare the outcomes of various levels of the independent variable against a control group that does not receive the treatment, thereby isolating the effect of the treatment's intensity.

The Multiple Experimental Groups with One Control Group Design Is