What should be included in the informed consent materials regarding payments?

• A. Information about payment methods, amounts, and schedule should be included in the informed consent materials.
• B. Payments should be confidential and not disclosed to participants.
• C. Only the total payment amount is required.
• D. The consent form should mention there will be no payments.

Answer: (A)

Information about compensation belongs in informed consent because it helps participants make a voluntary, informed decision and prevents undue influence. The best practice is to spell out how payments will be made, the exact amounts or ranges, and when payments will be delivered. This includes the method of payment (cash, check, gift card, etc.), the schedule (e.g., after visits, at milestones, or upon study completion), and any conditions such as pro-rating or reimbursement of expenses or payments that depend on completing certain parts of the study. Clear disclosure also covers what happens if a participant withdraws early or misses visits, so expectations are transparent.

If you only give the total amount, or conceal payment details, participants might not understand the burden of time or the timing of compensation, which could influence their decision to participate. Stating there will be no payments is misleading if compensation exists. And while protecting privacy is important, participants should still be informed about the compensation plan.