Midterm Exam: NR 503/ NR503
Epidemiology Exam |Weeks 1-4| 100%
Correct| Questions and Verified Answers
(2023/ 2024 Update)-Chamberlain
Q: Which of the following is an advantage of active surveillance?
Answer:
More accurate due to reduced reporting burden for health care providers
Q: A disease has an incidence of 10 per 1,000 persons per year, & 80% of those affected will
die within 1 year. Prior to the year 2000, only 50% of cases of the disease were detected by
physician diagnosis prior to death. In the year 2000, a lab test was developed that identified 90%
of cases an average of 6 months prior to symptom onset; however, the prognosis did not improve
after diagnosis. Which statement is true concerning the duration of the disease after the
development of the lab test?
Answer:
Mean duration of a case of the disease is longer in 2000
Q: What is the overall attack rate in persons who did not eat ice cream?
Answer:
33%
Q: The table above describes the number of illnesses & deaths caused by plague in four
communities. The proportionate mortality ratio associated with plague is lowest in which
community?
Answer:
Community D
Q: Which of the following is characteristic of a single-exposure, common-vehicle outbreak?
Answer:
The epidemic curve has a normal distribution when plotted against the logarithm of time
Q: A group of researchers have found that their study methodology has selec- tion bias. They
are concerned because
Answer:
The study sample will not be represen- tative of the population of interest.
Q: Which of the following is an example of primary prevention intervention for osteoporosis:
Select all that apply.
Answer:
Home Safety Evaluation, and Nutrition Counseling
Q: The provider is seeking to understand causality related to an increase in disease incidence. It
can be said that causality is
Answer:
Related to strength of assocation.