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1. How are experimental units
and subjects similar but different?
2. Explanatory variables in
experiments are often called _____.
3. If I test a drug at 100 mg,
200 mg, and 300 mg, I am testing one variable at three _____.
4. What is the placebo effect?
5. What is the purpose of a
control group?
6. Give an example of when we
may not want to use a placebo/control group.
7. What are the two types of
matched pairs used in experiments?
8. What are the three
principles of experimental design?
9. What does double-blind mean,
and why would we want an experiment to be double-blind?
10. Give an example of how lack
of realism in an experiment can give false results.
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