Whenever there is reason to think that taking the pretest may itself influence how participants react to the treatment,this design should be considered.
A)true experiment
B)quasi-experiment
C)Solomon four-group design
D)randomized comparative posttest design

Question

Quizplus · Accepted Answer

The Solomon four-group design involves randomly assigning participants to one of four groups: Group 1 takes both a pretest and a posttest and receives the treatment, Group 2 takes only a posttest and receives the treatment, Group 3 takes only a pretest and does not receive the treatment, and Group 4 takes neither a pretest nor a posttest and does not receive the treatment. This design allows researchers to determine whether the treatment effect is due to the treatment itself or to the pretest influencing participants' reactions to the treatment. Therefore, the Solomon four-group design is the best choice for situations where taking the pretest may influence how participants react to the treatment.

Whenever There Is Reason to Think That Taking the Pretest