When would it be better (under what conditions) to use the non-equivalent groups design?
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It is better to use the non-equivalent group design when a researcher is trying to compare the effect of a given intervention or treatment, on research subjects or groups that have similar characteristics. This would be especially important and helpful in situations in which a researcher trying to ascertain as to whether or not a specific kind of intervention or ...
This solution describes when it is most feasible to utilize the non-equivalent groups design in research.
Study designs and validity threats
1. Explain and give examples of how the particular outcomes of a study can suggest if a particular threat is likely to have been present.
2. Describe each of the following types of designs, explain its logic,
a. Non-equivalent control group pretest only
b. Non-equivalent control group pretest/posttest