Online Survey

CORE Family Studies

This is our newest option for completing a follow-up interview! We contact participants like you every four to six years to update information such as personal medical history, family history of cancer, medications, and history of cancer screenings. This information is important for ongoing research about the causes and prevention of colorectal cancer. 

What you need before launching the online survey

Before launching the online survey you will need the following information located on the letter you recently received:

  1. Token (User ID)
  2. Password

If you’ve lost or misplaced your letter, please call CORE staff at 800-276-0127 or email us at

About the online survey

Sometimes participants get ‘tired’ of participating. Find out why this interview is important by checking out one of our past newsletters.

The online survey averages about 15 minutes. Some tips while completing the survey:

  • We strongly encourage you to answer all questions to the best of your ability in one sitting. When we ask for a date, approximate dates are all that we require.
  • Questions with a red asterisk (*) are mandatory, but also have a “Do not know/Prefer not to answer” option. Questions without asterisks are optional.
  • Do not use the browser’s back arrow key to return to previous questions. Use the “Previous” and “Next” buttons located at the bottom of the survey screen.
  • If you are unable to complete the survey in one sitting, you will have 7 days to sign in to complete the survey. If you wait longer than 7 days, you will have to start the survey from the beginning.

Questions about the survey?
Please see our FAQ page.

Need general information?
Visit our CORE Family Studies website

We love to hear from you. Please do not hesitate to contact us at 1-800-276-0127 or with questions!