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Assignment PHM2612
Module 10. Cohort Studies
Complete this quiz on Canvas by or before the due date on the course calendar. Please note that
you will only have one attempt to complete the quiz; however, there is no time limit. You may
use this document to answer the questions prior to submitting your answers on Canvas. For
questions requiring calculations, keep 5 decimal places for intermediate steps and round
your final answers to two decimal places. (100 points)
1. Cohort studies compare incidence rates of exposure between disease groups and groups
without the disease. (2 points)
A. True
B. False
2. In a study where the goal is to evaluate whether a given occupational group has a higher
risk of a given outcome, it would be appropriate to select construction workers as the
exposure group and people from the general population as the non-exposure group is
appropriate. (2 points)
A. True
B. False
3. Relative risk in a cohort study is the ratio of the risk of exposure among diseased
individuals to the risk of exposure among those without the disease (2 points)
A. True
B. False
4. What are advantages of the cohort study design? Select all that apply (2 points)
It can provide a direct estimate of risk.
It is open to several types of selection bias.
It is useful for assessing the temporal relationship between exposure and outcome.
It is generally less expensive and less time consuming than other study designs.
5. Participants in a cohort study can be selected based on their _________ status. (2 points)
A. Disease
B. Outcome
C. Morbidity status
D. None of the above
6. Which of the following does not describe “attrition bias”? (Check all that apply) (2 points)
