Read the article "After the Credits Roll: The Long-Term Effects of Educational Television on Public Knowledge and Attitudes." This research uses an experimental setup and instrumental variable analysis. Although you may not be able to understand every methodological aspect of the analysis, the overall framework and logic behind the use of an instrument should make sense to you. 1. (2 points) State the overarching research question that motivates the article. 2. (2 points) The researchers conducted field experiments to answer the research question. Treatment group members were assigned to watch an educational show about addiction whereas control group members were supposed to not watch this show. Describe the problem caused by this experimental setup. 3. (2 points) What is the instrument the researchers used to address the problem you described in Question 1? 4. (2 points) Interpret the coefficient on the treatment variable in the "Attitudes" model in Table 3. 5. (2 points) What is the authors' overarching conclusion