Which statement about ethics in public health research is true?

• A. Ethics are optional in community-based research.
• B. Ethics require only consent forms.
• C. Ethics involve respect for persons, beneficence, justice, confidentiality, and community engagement.
• D. Ethics apply only to clinical trials.

Answer: (C)

Public health research ethics protect people and communities by guiding how studies are designed, reviewed, and conducted to prevent harm while generating useful knowledge. The statement that ethics involve respect for persons, beneficence, justice, confidentiality, and community engagement is best because it captures the full range of protections used in public health work. Respect for persons means honoring autonomy and obtaining informed consent; beneficence requires maximizing benefits and minimizing risks; justice ensures a fair distribution of research benefits and burdens and avoids exploiting vulnerable groups; confidentiality protects the privacy of participants’ information; and community engagement recognizes that research affects communities and seeks their input and partnership throughout the process. Ethics apply to all human subjects research, not just clinical trials, and consent forms alone do not cover all these essential protections.