en the and EPBI 3101 Intro Multiple choice (5 points each) 5. How do epidemiologists contribute to public health? (check all that apply) . Quantify the distribution and determinants of health-related events Use epidemiological study results to prevent disease Conduct and disseminate research on health determinants d! ) All of the above 6 . The following are three causal pies for lung cancer. Which of the following statements is TRUE? LL Each pie is a sufficient cause. A is a component cause. The other letters represent necessary causes Each pie is a sufficient cause. A is a necessary cause. The other letters represent component causes Each pie is a component cause. A is a sufficient cause. The other letters represent necessary causes Each pie is a component cause. A is a necessary cause. The other letters represent sufficient causes 7. The extent to which a study is conducted rigorously, is free of errors and the results represent the truth is referred as: A. Validity B. Reliability Specificity D. Sensitivity 8. Which of the following is TRUE of descriptive epidemiologic studies? A. Permit examination of Hill's criteria to determine causal inference Examine causal associations between exposures and disease outcomes Test specific hypotheses Classify occurrence of disease in terms of person, place, and time, For the 2018 Winter Olympics in Pyeongchang, South Korea, the Olympic athletes needed a test to correctly identify those athletes who did not use illegal drugs. The International Olympics Committee (IOC) needed a screening test to correctly identify athletes who used illegal performance-enhancing drugs. Which of the following best describes the screening test characteristics of greatest importance to both the IOC and Olympic athletes? a. High negative predictive value for Olympic athletes; high sensitivity for the IOC High specificity for Olympic athletes; high sensitivity for the IOC High sensitivity for Olympic athletes; high specificity for the IOC d. High negative predictive value for Olympic athletes; high specificity for the IOC 10. The screening test evaluation method that allows healthcare professionals to determine the proportion of people with disease out of all who test positive is Specificity b. Positive predictive value - C. Sensitivity d. Negative predictive value V2 - Page 3 of 9