Which of the following represents the Belmont Report’s ethical principle related to ensuring participants' protection and rights?

• A. Assent
• B. Beneficence
• C. Informed consent
• D. Maleficence

Answer: (C)

The main idea this question tests is how respect for persons is put into practice to protect participants’ rights. In Belmont Report terms, respect for persons means treating individuals as autonomous agents and protecting those with diminished autonomy. The practical way this protection is ensured is through informed consent. Informed consent ensures that people are given clear information about what the study involves, understand the risks and benefits, voluntarily agree to participate, and know they can withdraw at any time. This process directly safeguards autonomy and rights.

Assent relates to respecting autonomy in children, allowing them to agree to participate in a developmentally appropriate way, but the overarching Belmont principle is respect for persons expressed through informed consent for participants who can give it. Beneficence focuses on maximizing benefits and minimizing harms, while maleficence concerns avoiding harm; neither centers on protecting participants’ rights and autonomy in the way informed consent does.