For one month, on Saturday nights researchers measured the blood alcohol content (BAC) of departing patrons at each of two
taverns (baseline). The patrons were compensated for agreeing to do this with lottery tickets. Then, a treatment was administered
that included (1) placing cards in the lottery tickets instructing them on how to pace their drinking to stay under the legal limit, (2)
providing individual feedback on BAC to departing patrons, and (3) posting a large poster in each tavern indicating the percentage of
patrons who drove home intoxicated the previous week. Data continued to be recorded during the treatment for one more month on
Wednesday nights. The treatment reduced the mean BAC of departing patrons at each of the two taverns.
1. What is the independent variable (IV) in this study?
2. What is the dependent variable (DV) in this study?
3. Define what a confound is.
4. What are at least two confounds in this study? (look through Mr. Diminish to help you identify these)
5. Define the confounds you selected in #4.
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