Principles of Epidemiology Final Exam, Exams of Health sciences

Download Principles of Epidemiology Final Exam and more Exams Health sciences in PDF only on Docsity! HLTH 4200 Week 6 Final Exam (100% Correct Answers) HLTH 4200 - Principles of Epidemiology Walden University 1. Statistical power is the ability of a study to demonstrate an association if one exists True False pps. 354-355 and 373 of 2. Which of the following IS NOT a characteristic that would make a disease appropriate for screening? a. Prevalence of the disease should be high in the population under study. b. There should be a favorable prognosis for early treatment of the disease. c. The positive predictive value of the screening test should be low. d. The health problem should be important. p. 415 of your text 3. You are interested in finding out whether middle-aged men who have irregular heartbeats are at greater risk of developing a myocardial infarction (heart attack) than men whose heartbeats are regular. Electrocardiogram (ECG) examinations are performed on all male office employees 35 years of age or older who work for oil companies in Houston. The ECG tracings are classified as irregular or regular. Five years later, myocardial infarction rates are compared between those with and those without baseline ECG irregularities. This is an example of what type of study? a. Case control b. Retrospective cohort c. Prospective cohort d. Clinical Trial 4. The physical examination records of the incoming freshman class of 1935 at the University of Minnesota were examined in 1980 to see whether their recorded height and weight at the time of admission to the university are related to their chance of developing coronary heart disease by 1980. This is an example of what type of study? a. Case control b. Retrospective cohort c. Prospective cohort d. Clinical Trial 5. Research participants were children enrolled in a health maintenance organization. At 18 months of age each child was randomly assigned to one of two groups. Each group was given one of two types of vaccine against Haemophilus influenza. Parents were asked to record any side effects on a card and mail it back after two weeks. This study would be characterized as: a. Case control b. Retrospective cohort c. Prospective cohort d. Clinical trial 6. Research participants with a confirmed diagnosis of carpal tunnel syndrome were compared to a comparable group without carpal tunnel syndrome. Both groups were asked about their prior occupational and recreational exposures. This study could be characterized as: a. Case control b. Retrospective cohort c. Prospective cohort d. Clinical trial 7. The entire population of a given community is examined and all who are judged to be free from bowel cancer are questioned extensively about their diets. These people then are followed for several years to see whether or not their eating habits will predict their risk of developing bowel cancer. This is an example of what type of study? 18. An intervention designed for the purpose of educational and behavioral changes at the population level is a community intervention. a. True b. False 19. Certain genes can be markers for susceptibility but do not confer risk on their own a. True b. False 20. The host, agent, and behavior make up the epidemiologic triangle. a. True b. False 21. In developed countries, chronic health problems have replaced infectious diseases as the leading killers during the past century. a. True b. False 22. The entry and development or multiplication of an infectious agent in the body of persons or animals is known as: a. A host b. An infection c. An agent d. None of the above 23. The severity of a disease produced by an infectious agent is referred to as: a. Infectivity b. Toxigenicity c. Virulence d. None of the above 24. All of the following are examples of diseases known or believed to have a genetic basis EXCEPT: a. Hemophilia b. Chlamydia c. Down syndrome d. Tay-Sachs disease 25. Highly toxic chemicals that persist in the environment have been associated with disruption of the: a. Immune system b. Reproductive system c. Nervous system d. All of the above