Epidemiology
1. What is the primary purpose of a study design in epidemiology?
a. To determine the best statistical test for analyzing data
b. To guide the researcher in systematically collecting, analyzing, and interpreting data
c. To ensure that all studies reach the same conclusions
d. To focus only on identifying disease risk factors
2. Descriptive epidemiology primarily focuses on which of the following aspects of epidemiologic
data?
a. Establishing causation between exposure and disease
b. Organizing, summarizing, and describing data by person, place, and time
c. Developing experimental treatments for disease prevention
d. Conducting laboratory-based experiments
3. How does descriptive epidemiology assist in public health research?
a. It provides information about diseases, identifies high-risk populations, and helps in
resource allocation
b. It focuses only on rare diseases and their genetic causes
c. It replaces the need for analytical epidemiology
d. It ensures that diseases are evenly distributed across populations
4. Which of the following is NOT considered a type of descriptive study?
a. Ecological study
b. Case report
, c. Cohort study
d. Cross-sectional survey
5. What is a distinguishing characteristic of an ecological study?
a. It examines disease causes at an individual level
b. It analyzes aggregated data at the population level
c. It follows a group of individuals over time
d. It collects detailed genetic information on disease cases
6. A case report in epidemiology refers to:
a. A study design that includes a control group
b. A profile of a single individual with a particular disease or health condition
c. A collection of multiple case studies conducted over time
d. A method of evaluating long-term health trends in a population
7. How does a case series differ from a case report?
a. A case series involves a small group of patients with similar diagnoses, while a case
report focuses on a single patient
b. A case series is used only for infectious diseases, whereas a case report applies to all diseases
c. A case report includes a control group, while a case series does not
d. A case series is a more detailed version of a cohort study
8. What is a key characteristic of a cross-sectional survey?
a. It is conducted over a short period and does not include a follow-up period
b. It tracks individuals over time to assess disease development
c. It is primarily used for studying rare diseases
d. It focuses only on collecting genetic data