Key Issues

In this chapter, we address seven questions:

1. What are the advantages and limitations of the matched pairs design?

2. What are the advantages and limitations of the pure within-subjects design?

3. How are the strengths and weaknesses of the within-subjects design similar to the strengths and weaknesses of the matched pairs design? How are they different?

4. How can counterbalancing fix some of the flaws of the within-subjects design?

5. Other than counterbalancing, what strategies can you use to deal with the limitations of within-subjects designs?

6. What is a mixed design?

7. How should a researcher go about choosing among the following designs?
   1. between subjects design
   2. within-subjects design
   3. counterbalanced design
   4. mixed design
   5. matched pairs design

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