(LU) HLTH 485 Principles of Epidemiology & Biostatistics - Latest Final Exam Review Q & S 2024.

HLTH 485




Principles of Epidemiology &
Biostatistics




LATEST FINAL EXAM REVIEW
Q&S




©2024/2025

,1. An epidemiological study is conducted to assess the
relationship between physical activity and heart disease in a
population. What type of study is most appropriate for assessing
this association?
- A. Cross-sectional study
- B. Cohort study
- C. Case-control study
- D. Clinical trial


Correct Answer: B. Cohort study
- Rationale: A cohort study is suitable for assessing the
relationship between risk factors (e.g., physical activity) and
outcomes (e.g., heart disease) over time.


2. Which statistical test is most appropriate for comparing the
means of more than two independent groups?
- A. Chi-square test
- B. t-test
- C. ANOVA
- D. Mann-Whitney U test


Correct Answer: C. ANOVA
©2024/2025

, - Rationale: ANOVA (Analysis of Variance) is used to
compare the means of three or more independent groups.


3. Which of the following is a measure of disease frequency that
refers to the number of new cases of a disease in a population over
a specified period?
- A. Prevalence
- B. Incidence rate
- C. Mortality rate
- D. Case fatality rate


Correct Answer: B. Incidence rate
- Rationale: Incidence rate measures the occurrence of new
cases in a specified time period.


4. In biostatistics, the p-value is used to:
- A. Measure the strength of relationship
- B. Identify the population parameter
- C. Determine the sample size
- D. Assess the strength of evidence against the null hypothesis




©2024/2025