Yes! You can invite more participants or facilitators to register individually for your study at any time during the study. There are two ways you can do this:

  1. If you have their email addresses, on your dashboard go to “Manage Your Study” and click the “Invite People” tab. Select either “Invite Participants” or “Invite Facilitators.” Here you can enter their email address and they will be sent a link to register for your study.
  2. You can direct people to find your study and register at Here’s how:

A. Visit and become a member. It's free! 

B. Create an account or sign in to your existing account.

C. On the “Join a Study” tab in your dashboard you can search for the study on the map by city, state or zip code.Select the study you would like to join and click “Register.”

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