Online TTO


The AQoL team developed, used and validated an online version of a Time Trade Off interview.

This is how you can implement it.


  1. Use the opensource survey system Limesurvey to host the questionnaire.  (Our installation is hosted on a secure Monash server.)
    Please contact This email address is being protected from spambots. You need JavaScript enabled to view it. for further information about using Limesurvey.
  2. The voiceovers and avatars were developed using Sitepal.
  3. The avatar videos were hosted on Vimeo.
  4. The TTO was set-up with a decision tree that abided by logic rules to decide which year choice to display next.
  5. The script and images for the system are presented in this powerpoint.


You can trial the online TTO here