Chapter 8
| 1. In a __________ design, each subject receives all the treatments; in a _________ design, each subject receives only one treatment. |
 
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| 2. When factors such as age and sex, which are based upon characteristics of subjects, are used as a factor in a factorial design, __________. |
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| 3. Researchers have investigated the effect of exercise on depression. They have found that exercise decreases "feeling blue" in unipolar depressives but has no effect upon those suffering from seasonal affective disorder. The finding, that the effects of exercise depends upon diagnostic category, is an example of _________. |
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| 4. Counterbalancing is a technique that can be used for: |
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| 5. In a two-factor design, the number of F tests performed is: |
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| 6. The design that best controls for individual differences between subjects, using the fewest number of subjects, is the __________. |
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| 7. Experiments which test for interactions must include at a minimum __________. |
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| 8. A researcher investigates the influence of illumination levels (high, moderate, low) on reading speed, for texts varying in difficulty (complex, simple). In this factorial design, there are a total of __________ treatments. |
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| 9. In the analysis of the two-factor design shown in the summary table below, which F test(s) was/were statistically significant? Table Analysis of Variance Summary Table for Depression Scores Source df F A = Drug Th 1 1.86 B = Cog Beh Th 1 12.23* A x B 1 2.03 Error 30 * p < .05 |
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| 10. In a factorial design, subjects are assigned completely at random to one of the treatments; the design is a __________. |
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| 11. In a within-subjects design ___________. |
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| 12. The design that allows the researcher to test for interactions between variables is the __________. |
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