NSG 522 Biostats Final Questions
with Accurate Answers
14 steps in a field investigation correct answer 1. Establish the existence of an
epidemic (or outbreak)
2. Confirm the diagnosis
3. Establish criteria for case identification
4. Search for missing cases
5. Count cases
6. Orient the data according to person, place and time
7. Classify the epidemic
8. Determine who is a risk of becoming a case
9. Analyze the data
10. Formulate the hypothesis
11. Test hypothesis
,12. Develop reports and inform those who need to know
13. Execute control and prevention measures
14. Administration and planning activities
2 Retrospective studies correct answer - retrospective cohort studies
- case control studies
3 categories of vital statistics correct answer 1. mortality
2. morbidity
3. natality
3 Common source for Spread of Epidemics correct answer attributed to a specific
source
- point sources
- intermittent sources
- continuous sources
3 Components of Epidemiological Triad or Triangle correct answer 1. agent
2. host
3. Enviornment
, 3 Observational studies correct answer - cohort studies
- case-control studies
- cross sectional studies
3 Prospective studies correct answer - randomized controlled trials
- quasi-experiments (non randomized)
- prospective cohort studies
4 Stages of disease correct answer -susceptibility
-preclinical, pre symptomatic or latent disease
- clinical disease
- recovery, disability or death
5 Measures of Disease Occurrence correct answer - counts: number & frequency
- ratios
- proportions
- percentages
- rates
5 W's of Epidemiology correct answer What
When
Where
Who
Why
with Accurate Answers
14 steps in a field investigation correct answer 1. Establish the existence of an
epidemic (or outbreak)
2. Confirm the diagnosis
3. Establish criteria for case identification
4. Search for missing cases
5. Count cases
6. Orient the data according to person, place and time
7. Classify the epidemic
8. Determine who is a risk of becoming a case
9. Analyze the data
10. Formulate the hypothesis
11. Test hypothesis
,12. Develop reports and inform those who need to know
13. Execute control and prevention measures
14. Administration and planning activities
2 Retrospective studies correct answer - retrospective cohort studies
- case control studies
3 categories of vital statistics correct answer 1. mortality
2. morbidity
3. natality
3 Common source for Spread of Epidemics correct answer attributed to a specific
source
- point sources
- intermittent sources
- continuous sources
3 Components of Epidemiological Triad or Triangle correct answer 1. agent
2. host
3. Enviornment
, 3 Observational studies correct answer - cohort studies
- case-control studies
- cross sectional studies
3 Prospective studies correct answer - randomized controlled trials
- quasi-experiments (non randomized)
- prospective cohort studies
4 Stages of disease correct answer -susceptibility
-preclinical, pre symptomatic or latent disease
- clinical disease
- recovery, disability or death
5 Measures of Disease Occurrence correct answer - counts: number & frequency
- ratios
- proportions
- percentages
- rates
5 W's of Epidemiology correct answer What
When
Where
Who
Why
