Question

Which of the following statements is/are true about experimental designs?

a. they are the most rigorous of the designs
b. they do not require random assignment to a control or intervention group
c. it is not possible to conduct a study of this design in the social sciences
d. the comparison and control groups do not need to be equivalent
e. all of the above are true

Answer 1

Experimental designs are the most rigorous of the designs because they involve randomly assigning subjects to different treatment groups and include a control group.

Step-by-step explanation:

Experimental designs are the most rigorous of the designs because they involve randomly assigning subjects to different treatment groups and include a control group. This helps eliminate lurking variables and ensures that any differences between the groups are due to the experimental manipulation rather than chance. Therefore, option a is true.

On the other hand, option b is false because experimental designs do require random assignment to a control or intervention group. Option c is also false because it is possible to conduct studies of this design in the social sciences. Finally, option d is false because the comparison and control groups in experimental designs need to be equivalent to properly measure the effect of the independent variable.