To add a CAPTCHA take the following steps:
  1. Find your survey in the survey list and choose edit under the actions tab.
  2. On the next screen skip to step 2.  Include Questions
  3. On this step select the grey button that says Add Questions
  4. From the dropdown list choose CAPTCHA
  5. On the next screen you will be given several question configurations
  6. For the Question text you may use a sentence that instructs the user to complete the CAPTCHA
  7. Be sure to choose " Yes, require a response to this question"
  8. Click Finish.