Question Details

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.