PUBH 1001 FINAL EXAM UPDATED ACTUAL QUESTIONS
AND CORRECT ANSWERS
Question:
1. Public Health Transition
Answer:
changing patterns of disease that can be seen in countries that have experienced social and economic
development
Question:
2. Screening
Answer:
use of tests on individuals who do not have symptoms
Question:
3. Asymptomatic
Answer:
individuals who show no symptoms of a particular disease
Question:
4. Incremental Cost Effectiveness Ratio
Answer:
additional costs relative to the net effectiveness
Question:
5. Lead-Time Bias
Answer:
early detection without improved outcome
Question:
6. False Positives
Answer:
individuals who have positive results on a screening test but do not turn out to have the disease
Question:
7. False Negative
Answer:
individuals who have negative results on the screening test but turn out to have the disease
Question:
8. True positives
Answer:
individuals who have a positive screening test but also turn out to have the disease
, Question:
9. Bayes' Theorem
Answer:
connection between pretest probability of disease and posttest probability of disease
Question:
10. Pre-test probability of disease
Answer:
estimate based on combining information about the prevalence of the disease and risk factors of disease
Question:
11. Post-test probability of disease
Answer:
probability of of disease after taking into account the pre test probability as well as the sensitivity and
specificity of the disease
Question:
12. sensitivity
Answer:
probability that the test will be positive in the presence of the disease (positive-in-disease)
Question:
13. specificity
Answer:
sensitivity is the probability that the test will be negative in the absence of the disease (negative-in-health)
Question:
14. predictive value of a positive
Answer:
if the test is positive, the posttest probability of the disease
Question:
15. predictive value of a negative
Answer:
if the test is negative, the posttest probability of the disease
Question:
16. sequential testing (consecutive testing)
Answer:
initial screening is followed by one or more definitive or diagnostic tests
Question:
17. simultaneous testing (parallel testing)
Answer:
two tests are used initially if one test can be expected to detect one type of disease and the other test can be
expected to detect a different type of disease
AND CORRECT ANSWERS
Question:
1. Public Health Transition
Answer:
changing patterns of disease that can be seen in countries that have experienced social and economic
development
Question:
2. Screening
Answer:
use of tests on individuals who do not have symptoms
Question:
3. Asymptomatic
Answer:
individuals who show no symptoms of a particular disease
Question:
4. Incremental Cost Effectiveness Ratio
Answer:
additional costs relative to the net effectiveness
Question:
5. Lead-Time Bias
Answer:
early detection without improved outcome
Question:
6. False Positives
Answer:
individuals who have positive results on a screening test but do not turn out to have the disease
Question:
7. False Negative
Answer:
individuals who have negative results on the screening test but turn out to have the disease
Question:
8. True positives
Answer:
individuals who have a positive screening test but also turn out to have the disease
, Question:
9. Bayes' Theorem
Answer:
connection between pretest probability of disease and posttest probability of disease
Question:
10. Pre-test probability of disease
Answer:
estimate based on combining information about the prevalence of the disease and risk factors of disease
Question:
11. Post-test probability of disease
Answer:
probability of of disease after taking into account the pre test probability as well as the sensitivity and
specificity of the disease
Question:
12. sensitivity
Answer:
probability that the test will be positive in the presence of the disease (positive-in-disease)
Question:
13. specificity
Answer:
sensitivity is the probability that the test will be negative in the absence of the disease (negative-in-health)
Question:
14. predictive value of a positive
Answer:
if the test is positive, the posttest probability of the disease
Question:
15. predictive value of a negative
Answer:
if the test is negative, the posttest probability of the disease
Question:
16. sequential testing (consecutive testing)
Answer:
initial screening is followed by one or more definitive or diagnostic tests
Question:
17. simultaneous testing (parallel testing)
Answer:
two tests are used initially if one test can be expected to detect one type of disease and the other test can be
expected to detect a different type of disease
