Answer:
informed consent
Explanation:
Informed consent: The term informed consent represents one of the establishing principles that is being used in research ethics. It encompasses the procedure that involves the research participants to enter or take part in particular research voluntarily or freely by gaining full information related to the research and it shows the cause of taking part in the research and therefore the participants give consent before entering the research.
Principles:
1. Voluntary nature of the participant's decision.
2. Capability of the participants to make a decision.
3. Disclosure of information.
4. Complete explanation related to the research including potential risks.