Readiness quiz week five Stats 7000

Readiness quiz week five Stats 7000 1. If the risk of thromboembolism is 10% in the treatment group and 15% in the control group, the absolute risk reduction is a. 10% b. 5% c. 50% d. 33% 2. If the risk of thromboembolism is 10% in the treatment group and 15% in the control group, the relative risk reduction is a. 10% b. 5% c. 50% d. 33% 3. Suppose the attributable risk (aka risk difference) in tumor progression between chemotherapy and radiation therapy for kidney cancer is 3% (radiation minus chemo). The number needed to treat in this scenario is a. 3 b. 33 c. 97 d. 1 4. Suppose the risk of melanoma for 18-35 year olds is 18%, while in those 65+ years of age, it is 54%. The relative risk of melanoma for 18-35-year-olds compared to those 65+ is a. 3 b. 0.33 c. 36% d. 50% 5. Suppose the risk of diabetes for adult Hispanics/Latinos is 12%, while for non-Hispanic/Latinos it is 42%. The relative risk of melanoma for Non-Hispanic/Latinos compared to Hispanic/Latinos is a. 3.5 b. 0.286 c. 30% d. -30% 6. The key assumptions required to appropriately interpret the results of a prospective or experimental study include (choose all that apply) a. Random sample b. Independent observations c. Similarity of groups being compared d. Sufficiently large sample size e. Sufficiently narrow confidence interval 7. A single relative risk can be computed to compare the ‘White,’ ‘Black,’ and ‘Other’ race groups for access to emergency department care (Yes, have access or No do not) simultaneously. a. True b. False 8. An investigator conducted a study and concluded that the relative risk of brain cancer for those living near electric power lines compared to a control sample that does not near live near such power lines is 2.7. This number is best described as a. Valid b. Invalid c. Accurate based on the available study data d. Inconclusive 9. Odds ratios are valid to compute in case-control studies a. True b. False