Nada designs a study in which she has two control and two experimental groups. In the design, one control group and one experimental group receive a pretest each, while the other control group and experimental group do not. Nada's design is an example of a _____ design.
A)four-group pretest-posttest
B)Solomon four-group
C)two-group control
D)one-group control-one-group experimental

Question

Quizplus · Accepted Answer

Nada's design is an example of a Solomon four-group design, which includes two experimental and two control groups. One of each receives a pretest, while the other one does not. This allows for testing the effect of the pretest on the outcome variable and controlling for pre-existing differences between groups.

Nada Designs a Study in Which She Has Two Control