HLTH 503 UPDATED Exam Questions and CORRECT Answers

An example of passive follow-up in cohort studies is: A. Telephone calls to study participants B. Use of follow-up mailings C. Use of written invitations to return to the study site D. Collection and maintenance of data by the federal governmentD. Collection and maintenance of data by the federal government A major advantage of cohort studies over case-control studies with respect to the role of a suspected factor in the etiology of a disease is that: A. It is easier to obtain controls that are not exposed to the suspected factor B. They can be done on a double-blinded basis C. They can utilize a more representative population D. They take less time and are less costly E They permit direct estimation of risk of disease in those exposed to the suspected factorE. The permit direct estimation of risk of disease in those exposed to the suspected factor