Loading question session…
12 questions
Which study design is best suited to estimate the incidence of a rare disease with a long latency period?
In a screening program, which characteristic most directly affects the positive predictive value (PPV) of the test?
How does prevalence of a disease relate to incidence and average duration of the disease?
Which risk factor is most likely to be a confounder in a study assessing the relationship between alcohol consumption and liver disease?
What is the primary purpose of randomization in a clinical trial?
Which prevention strategy targets the population level to reduce disease burden before onset?
A case-control study can directly provide the incidence rate of a disease.
Prevalence can be higher than incidence if the disease has a long duration.
Screening tests with high sensitivity but low specificity will result in many false positives.
Explain why selecting an inappropriate control group in a case-control study can bias the estimation of association between exposure and outcome.
Press “Enter” to evaluate answer, “Shift+Enter” to add a new line
Match each epidemiological measure with its correct definition: