1. What are the independent variables in the study just described?
2. What is the dependent variable in that study?
3. Experiments like this are usually done with some hypothesis in mind. What would you expect was the experimenter's hypothesis?
4. Describe the chain of assumptions underlying the measurement issues in this study.
5. We saw that we often treat a discrete variable as if it were continuous. Under what condi- tions would we be likely to do so?