MATCHED PAIRS, WITHIN-SUBJECTS, AND MIXED DESIGNS

CHAPTER OUTLINE

I. Overview

II. Matched pairs design

A. Procedure

B. Considerations in using matched pairs designs

1. Finding a suitable matching variable

2. Power

3. External validity

4. Construct validity

C. Analysis of data

D. Summary

III. Pure within-subjects designs

A. Procedure

B. Considerations

1. Power

2. The order problem

a. Practice and fatigue effects

b. Treatment carry-over effects

c. Sensitization

C. Dealing with the order problem

1. Minimizing each individual threat

2. Randomization

D. Analysis of data

IV. Counterbalanced within-subjects designs

A. Procedure

B. Advantages and disadvantages of counterbalancing

C. Conclusions about counterbalanced designs

V. Choosing designs

A. Choosing designs: The two-conditions case

B. Choosing designs: When you have more than one independent variable

VI. Concluding remarks

Summary

Key terms & issues

Exercises


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