Test Yourself

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1. Another term for within-subjects designs is
2. Within-subjects designs are less powerful than matched-pairs designs.
3. Within-subject designs reduce the effect of random error more than matched-pairs designs.
4. Fatigue effects could be considered negative practice effects.
5. In a within-subjects design, order effects could be mistaken for treatment effects.
6. Sensitization effects are only a threat to a within-subject design´s internal validity.
7. Treatment carryover effects can threaten a within-subject design´s internal validity.
8. Lengthening the time between treatments will
9. Giving participants extensive practice on the experimental task before the experiment begins will
10. Reducing the number of conditions would tend to reduce fatigue effects, carryover effects, and sensitization.

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