Will I be paid for my time if I do not qualify for a study?

We do not usually offer compensation when you do not qualify after completing the screening questions. Compensation is generally provided only when you qualify for and complete the full study, as explained in the invitation.

Before a study begins, we review the screening questions to make sure they are appropriate. In some cases, particularly when the screening process is longer than usual, compensation may be offered for completing it.

When compensation for screening is available, this will be clearly stated in the study invitation.