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Quiz: Public Health Ethics

Test your understanding of ethical frameworks, population ethics, research ethics, and the ethics of public health intervention with these review questions.

1. The four principles of biomedical ethics (Beauchamp and Childress) are:

  1. Justice, fairness, equality, and solidarity
  2. Autonomy, beneficence, non-maleficence, and justice
  3. Respect for persons, welfare, and justice (from the Belmont Report)
  4. Utility, rights, virtue, and care
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The correct answer is B. Beauchamp and Childress's "principlism" — from "Principles of Biomedical Ethics" — provides four prima facie principles that must be balanced in clinical and public health ethics: autonomy (respect for individual self-determination), beneficence (acting in the patient's or population's best interest), non-maleficence (avoiding harm), and justice (fair distribution of benefits and burdens). The Belmont Report (option C) uses three principles and applies specifically to research ethics.

Concept Tested: Four Principles of Biomedical Ethics

2. The Nuffield Council on Bioethics "ladder of interventions" ranks public health interventions from least to most coercive. At the bottom (least coercive) rung is:

  1. Mandatory vaccination with legal penalties for non-compliance
  2. Using fiscal measures (taxes and subsidies) to influence health behaviors
  3. Providing information and education to enable informed choice
  4. Regulating commercial products to eliminate harmful options
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The correct answer is C. The Nuffield Ladder places interventions from least to most restrictive of liberty. At the bottom are purely informational interventions — providing information, monitoring and guidance — that enable individuals to make their own informed choices without altering incentives or restricting options. Moving up: choice architecture (defaults), fiscal measures (taxes/subsidies), restricting availability, and at the top, mandatory measures. The ladder is a tool for justifying the most restrictive intervention appropriate to the magnitude of the public health problem.

Concept Tested: Nuffield Ladder of Interventions

3. Public health ethics differs from clinical bioethics primarily because:

  1. Public health practitioners do not face the same legal accountability as physicians
  2. Public health focuses on populations and collective action, raising tensions between individual liberty and the common good
  3. Public health interventions never require informed consent
  4. Clinical ethics has no relevance to health policy decisions
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The correct answer is B. Clinical bioethics centers on the patient-provider dyad and the primacy of individual autonomy. Public health ethics operates at the population level and must balance individual rights against collective interests — mandatory vaccination, quarantine, tobacco taxation, and building codes all restrict individual freedom to protect population health. This "common good" orientation creates ethical tensions that cannot be fully resolved through the four clinical principles alone.

Concept Tested: Public Health vs. Clinical Ethics

4. The Belmont Report's principle of "respect for persons" in research ethics requires:

  1. Treating all research participants with professional courtesy
  2. Ensuring that research benefits are distributed fairly across populations
  3. Recognizing individuals' autonomy and providing extra protection to those with diminished autonomy
  4. Minimizing research risks relative to anticipated benefits
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The correct answer is C. The Belmont Report's respect for persons principle has two components: (1) individuals should be treated as autonomous agents capable of making their own informed decisions, and (2) individuals with diminished autonomy — children, prisoners, cognitively impaired individuals — are entitled to special protection. Informed consent is the primary mechanism for respecting autonomy in research. Option B corresponds to the justice principle; option D corresponds to beneficence/non-maleficence.

Concept Tested: Belmont Report — Respect for Persons

5. Utilitarian justifications for mandatory vaccination programs argue that:

  1. Vaccination rights are protected by constitutional guarantees that cannot be overridden
  2. Individual liberty should never be restricted regardless of the public health benefit
  3. The overall reduction in disease burden and protection of vulnerable non-vaccinatable people justifies the restriction on individual choice
  4. Governments have a duty to protect individual health even without the individual's consent
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The correct answer is C. Utilitarian ethics evaluates actions by their consequences — the greatest good for the greatest number. Mandatory vaccination programs are justified on utilitarian grounds by the substantial reduction in disease burden (measured in cases, hospitalizations, deaths, and DALYs averted) and the protection of those who cannot be vaccinated (immunocompromised individuals, infants, those with medical contraindications) through herd immunity. This consequentialist argument is balanced against deontological arguments for bodily autonomy.

Concept Tested: Utilitarian Justification for Mandatory Vaccination

6. The concept of "procedural justice" in public health practice refers to:

  1. Ensuring that health outcomes are equally distributed across all population groups
  2. The fairness of the processes and procedures by which health decisions are made, including who has voice and representation
  3. Applying legal due process to all public health enforcement actions
  4. The equitable allocation of healthcare resources based on clinical need
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The correct answer is B. Procedural justice is concerned with the fairness of decision-making processes — not only whether outcomes are equitable (distributive justice) but whether the affected communities had meaningful participation in the decisions that affect them. In public health, procedural justice requires that community members — particularly those most affected by health disparities — have genuine input in priority-setting, intervention design, and policy development, not merely token consultation.

Concept Tested: Procedural Justice

7. Institutional Review Boards (IRBs) were established in response to historical research abuses. Which study most directly prompted the creation of federal research ethics oversight in the United States?

  1. The Framingham Heart Study, which enrolled participants without full disclosure of health risks
  2. The Tuskegee Syphilis Study, which withheld treatment from Black men with syphilis for decades
  3. The Willowbrook Hepatitis Studies, which deliberately infected children with intellectual disabilities
  4. The Nazi medical experiments, which were condemned in the Nuremberg Code
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The correct answer is B. The 1972 public exposure of the US Public Health Service Tuskegee Syphilis Study — which had observed untreated syphilis in Black men from 1932 to 1972, withholding penicillin even after it became the standard of care — directly prompted the National Research Act (1974), which established IRBs and mandated the Belmont Report. The Tuskegee Study is the primary historical context for US federal human subjects protection regulations, though the Nuremberg Code and Willowbrook studies (options C and D) also informed the ethical framework.

Concept Tested: History of Research Ethics in the US

8. Data ethics in public health includes the obligation to:

  1. Make all public health datasets publicly available to maximize transparency
  2. Balance transparency and open data access against privacy rights and the potential for data re-identification and misuse
  3. Avoid collecting data on sensitive health topics to protect participants
  4. Obtain clinical-level informed consent for all secondary analyses of existing data
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The correct answer is B. Public health data ethics requires navigating the tension between the value of open data (enabling research, accountability, public trust) and the obligation to protect individuals from privacy violations, re-identification risks, and potential misuse of sensitive health information. This is particularly complex for data on stigmatized conditions (HIV, substance use, mental health), small communities where individuals may be identifiable, and genomic data that is inherently identifying.

Concept Tested: Data Ethics in Public Health

9. The precautionary principle in environmental public health ethics holds that:

  1. Regulatory action on a potential hazard requires definitive proof of harm before action can be taken
  2. When an action or policy raises threats of harm, precautionary measures should be taken even before scientific consensus is established
  3. The economic costs of prevention should always be weighed against health benefits before regulation
  4. Environmental exposures should be presumed safe until proven hazardous
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The correct answer is B. The precautionary principle holds that when there is credible scientific evidence of potential harm, protective action is justified even before full scientific certainty is achieved — the absence of conclusive proof of harm should not be used to delay protective measures. It reverses the burden of proof from requiring proof of harm to requiring some evidence of safety. It is central to European environmental regulation and debates over chemicals, GMOs, nanotechnology, and climate policy.

Concept Tested: Precautionary Principle

10. When a public health intervention is effective but takes up a larger share of benefits in already-advantaged populations (the "inverse equity hypothesis"), the most ethically appropriate response is to:

  1. Discontinue the intervention because it worsens relative inequality
  2. Continue the intervention unchanged because absolute health gains are generated regardless of distribution
  3. Redesign delivery to prioritize or target populations bearing the highest burden of disease
  4. Report relative equity metrics rather than absolute metrics to minimize the appearance of disparity
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The correct answer is C. The inverse equity hypothesis (Victora et al.) observes that new health interventions typically reach advantaged populations first, widening relative disparities before benefits eventually diffuse to disadvantaged groups. The ethically appropriate response is active re-targeting: redesigning delivery channels, incentive structures, and outreach to prioritize populations most in need. Abandoning effective interventions (option A) forgoes population benefit; ignoring equity effects (option B) allows preventable disparities to widen.

Concept Tested: Inverse Equity Hypothesis and Ethical Response