Chapter Seven Quiz

__________ is the difference in risk between those who have been exposed to and developed disease and those who have not been exposed to and developed the disease. Question 3 options: a) Attributable risk b) Attributable risk percent c) Population attributable risk d) Population attributable risk percent

Attributable risk

True or False? Both confounding variables and effect modifiers are treated in the same way. Question 9 options: True False

False

True or False? In a case-control study, the diagnostic criteria and definition of the disease are determined after the cases are established. True False

False

__________ is a form of bias attributed to selective survival among prevalent cases. a) Recall bias b) Selection bias c) Interviewer bias d) Prevalence-incidence bias

Prevalence-incidence bias

True or False? Controls and cases should be selected from the same population. Question 7 options: True False

True

True or False? Double-cohort studies are used when the exposure variable is rare and the population affected is small. Question 10 options: True False

True

True or False? Populations should be screened for those who already have the disease and are not at risk and removed from the sample selection when choosing the study cohort. True False

True

Weaknesses of __________ studies include the amount of time and money often required and the lack of feasibility with rare outcomes. Question 1 options: a) cohort b) case-control c) case-crossover d) nested case-control

cohort

Change and variation in disease in the population being studied as it moves through time is known as a: a) healthy worker effect. b) cohort study. c) cohort effect. d) prospective cohort study.

cohort effect.

An extrinsic factor that changes the level of association between an exposure and a disease outcome is a(n): Question 2 options: a) healthy worker effect. b) effect modifier. c) confounder. d) risk ratio.

effect modifier.