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It is possible to require a Swarthmore login to take a Qualtrics survey.  This is helpful if you need to publish a survey URL but want to limit respondents to the Swarthmore community.  It is possible to capture a username from the login process to verify a respondent's identify.  

Configuration

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1. Within a survey choose "Survey Flow"
2. Add an "Authenticator" element at the top of the survey flow
   1. Authentication type: SSO
   2. Uncheck "Associate Respondent With Panel"
   3. If you want to collect Swarthmore username:
      1. Check "Capture respondent identifying info"
      2. Click "Add Embedded Data..."
      3. Enter "username" in both boxes that appear
   4. SSO Type: CAS
   5. Hostname: sid.swarthmore.edu (updated url)
   6. Port: 443
   7. URI: idp/profile/cas/  (updated URI, not reflected in screenshot)
3. Set up "Show Block: Default Question Block" and the "End of Survey" blocks nested below the authentication block (see screenshot above)

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