D401 HLTH 3310 Introduction to Epidemiology FA READINESS EXAM Q & S 2025/2026

1. Which type of study design is best for assessing the
effectiveness of a vaccination program?
 A) Case-Control Study
 B) Cohort Study
 C) Cross-Sectional Study
 D) Ecological Study
 Answer: B) Cohort Study
 Rationale: Cohort studies follow groups over time to
see differences in exposure and outcome, which is ideal for
assessing vaccination effectiveness.
2. In epidemiology, the term “incidence” refers to:
 A) The total number of existing cases of a disease
 B) The number of new cases of a disease occurring in a
specified period
 C) The proportion of individuals with a certain disease at a
given time
 D) The rate of deaths in a population
 Answer: B) The number of new cases of a disease
occurring in a specified period
 Rationale: Incidence measures new cases in a
population over a specified time period.
3. Which of the following is NOT a measure of disease
frequency?
 A) Prevalence
 B) Incidence Rate
 C) Mortality Rate
 D) Attributable Risk
 Answer: D) Attributable Risk
 Rationale: Attributable risk is a measure of association,