question archive The primary difference between the Solomon four-group design and the two-factor experimental design is that ONLY the two-factor experimental design: involves four groups of participants
The primary difference between the Solomon four-group design and the two-factor experimental design is that ONLY the two-factor experimental design: involves four groups of participants
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The primary difference between the Solomon four-group design and the two-factor experimental design is that ONLY the two-factor experimental design:
- involves four groups of participants.
- requires random assignment of participants to groups.
- has a measurement before initial treatment.
- includes two different treatments.
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Answer:
The correct answer is 'includes two different treatments'.
Explanation:
Because in Soloman four group design, four groups of participants are used and two treatment groups and two control groups are formed which undergo a combination of posttest only and pretest-posttest design and they are selected randomly and given the treatments. The two factor experimental design involves two treatments to measure the joint effect of these on the dependent variables too, which is the main difference from soloman four group design.
