Final answer:
In an IRB meeting, the Chairperson, Vice Chairperson, a member with scientific expertise, and a member not affiliated with the institution must be present.
Step-by-step explanation:
In an Institutional Review Board (IRB) meeting, several members must be present for the meeting to be conducted:
- Chairperson: The Chairperson is responsible for leading the meeting and ensuring that the IRB's policies and guidelines are followed.
- Vice Chairperson: The Vice Chairperson assists the Chairperson in their duties and may act as a substitute if the Chairperson is absent.
- At least one member with scientific expertise: This member provides scientific knowledge and expertise to evaluate the research proposals properly.
- At least one member not affiliated with the institution: This member serves as an independent voice and brings an external perspective to the IRB's decision-making process.