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Practice Questions

Public Health Practice Questions: Test Your Knowledge | LearnByTeaching.ai

These 40 public health practice questions cover epidemiology, biostatistics, health policy, and global health. They range from fundamental measures of disease to challenging questions about study design and health systems, helping you prepare for your MPH coursework or professional practice.

40 questions total

Epidemiology Fundamentals

Covers measures of disease frequency, study designs, outbreak investigation, and causal reasoning.

Q1Easyepidemiology

Incidence measures:

Q2Mediumepidemiology

A disease has an incidence of 50 per 100,000 per year and an average duration of 2 years. The approximate prevalence is:

Q3Easyepidemiology

A cohort study follows:

Q4Easyepidemiology

The relative risk (RR) of lung cancer for smokers vs. nonsmokers is 20. This means:

Q5Mediumepidemiology

In a case-control study, the appropriate measure of association is:

Q6Mediumepidemiology

An epidemic curve with a sharp peak suggests:

Q7Hardepidemiology

Confounding in epidemiology occurs when:

Q8Hardepidemiology

The number needed to treat (NNT) of 25 means:

Q9Hardepidemiology

Selection bias in a cohort study might occur when:

Q10Hardepidemiology

Hill's criteria for causation include all of the following EXCEPT:

Biostatistics for Public Health

Covers measures of central tendency, hypothesis testing, screening tests, and interpreting study results.

Q11Easybiostatistics

A screening test with high sensitivity will:

Q12Hardbiostatistics

A screening test has 90% sensitivity and 80% specificity. In a population where 10% have the disease, what is the positive predictive value (PPV)?

Q13Mediumbiostatistics

A p-value of 0.03 means:

Q14Mediumbiostatistics

A 95% confidence interval for a mean difference is (2.1, 8.5). This means:

Q15Easybiostatistics

Type I error is:

Q16Easybiostatistics

When is the median a better measure of central tendency than the mean?

Q17Mediumbiostatistics

The power of a statistical test is:

Q18Hardbiostatistics

Which measure describes the proportion of disease in a population that could be prevented by eliminating an exposure?

Q19Hardbiostatistics

In a meta-analysis, a forest plot shows:

Q20Hardbiostatistics

Adjusting for confounders in a multivariable regression model means:

Health Policy and Social Determinants

Covers health systems, health equity, social determinants, and policy analysis.

Q21Easysocial-determinants-of-health

Social determinants of health include all of the following EXCEPT:

Q22Easyhealth-policy

Health equity differs from health equality in that equity means:

Q23Easyhealth-policy

In the United States, Medicare primarily serves:

Q24Mediumhealth-policy

Primary prevention aims to:

Q25Mediumhealth-policy

The 'inverse care law' states that:

Q26Mediumhealth-policy

A health impact assessment (HIA) is used to:

Q27Mediumhealth-policy

Which country spends the most on healthcare per capita while having worse health outcomes than many peer nations?

Q28Hardhealth-policy

The 'tragedy of the commons' applies to public health when:

Q29Hardhealth-policy

Community-based participatory research (CBPR) differs from traditional research by:

Q30Hardsocial-determinants-of-health

Structural racism affects health through:

Global and Environmental Health

Covers infectious disease control, environmental hazards, global health metrics, and international health systems.

Q31Easyinfectious-disease-control

Herd immunity is achieved when:

Q32Mediuminfectious-disease-control

The basic reproduction number (R0) of a disease represents:

Q33Mediumglobal-health

Disability-adjusted life years (DALYs) measure:

Q34Mediumglobal-health

The epidemiological transition describes:

Q35Easyenvironmental-health

Particulate matter (PM2.5) air pollution is associated with:

Q36Mediumglobal-health

The One Health approach recognizes that:

Q37Easyinfectious-disease-control

Antimicrobial resistance is accelerated by all of the following EXCEPT:

Q38Hardenvironmental-health

Lead poisoning primarily affects children through:

Q39Hardglobal-health

The WHO Framework Convention on Tobacco Control is significant because:

Q40Hardenvironmental-health

Climate change affects public health through all of the following pathways EXCEPT:

Scoring Guide

Total possible: 40

Excellent36-40: Excellent — you have strong mastery of public health concepts
Good28-35: Good — solid foundation with some gaps to address
Needs WorkBelow 28: Needs work — review the topics where you struggled

Study Recommendations

  • Practice calculating and interpreting epidemiological measures (incidence, prevalence, relative risk, odds ratio, NNT) until they are second nature
  • Analyze real public health case studies — COVID-19, Flint water crisis, opioid epidemic — using the frameworks you learn in class
  • Learn to critically evaluate study designs by identifying potential sources of bias and confounding
  • Connect social determinants of health theory to concrete policy interventions — understanding the 'so what' is essential
  • Stay current with WHO and CDC reports to see how public health principles apply in practice
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