After you finish an online study, you will receive a confirmation email that contains a confirmation number. The email title should be “DO NOT REPLY – confirmation of research participation”.
Keep the email for your records. You can also double-check your confirmation number in the Excel chart below (this is optional; once you get the email, your data has been recorded). We update this chart regularly. Please keep in mind that it may take a week or two until we include your confirmation number here: