Participant Referral Program

Refer-a-Friend to participate in one of our studies
and receive $50!

Refer-A-Friend Program Guidelines

Step 1: Refer a friend to a study that is open for enrollment.

Step 2: Receive a $50 gift card for each referral that meets eligibility criteria, signs a consent form, and successfully completes a full screening visit.


  • To be eligible, the referred individual must be someone who has not previously contacted us regarding potential study participation and is not already listed in the CNS database.
  • The person being referred must provide the CNS staff with the full name of the person who referred them during phone recruiting or during their screening visit.
  • A referral payment may only be earned once per candidate.

Contact Us for questions and referral