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The Solomon four-group design is a type of experiment where participants get randomly assigned to either 1 of 4 groups that differ in whether the participants receive the treatment or not, and whether the outcome of interest is measured once or twice in each group.
The Solomon four group design is a way of avoiding some of the difficulties associated with the pretest-posttest design. This design contains two extra control groups, which serve to reduce the influence of confounding variables and allow the researcher to test whether the pretest itself has an effect on the subjects.
In the Solomon four-group design, the researcher uses four groups. Two groups are treated as they would be in a classic experiment—pretest, experimental group intervention, and post-test. The other two groups do not receive the pretest, though one receives the intervention.
Solomon Four-Group design is intended to test for whether repeated testing causes issues in the experiment. Here's how.
The Solomon four-group design is a research method developed by Richard Solomon in 1949. It is sometimes used in social science, psychology and medicine. It can be used if there are concerns that the treatment might be sensitized by the pre-test.
Jul 17, 2023 · This variation is known as a Solomon 4-Group Design. As the name indicates, there are four groups. Two are experimental groups and two are control groups. One experimental group and one control will have a pretest and posttest and the remaining groups will not be pretested.
Feb 26, 2018 · For demonstrating causality, scholars may utilize a Solomon-four-group design (groups with and without pre-test measure and with and without intervention) to capture the impact of work...
