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  • Click circles as soon as possible.
  • The number indicated up-left of the screen means the number of your trials.
  • The system ignores your first trial to reduce possible delay caused by your warming up.
  • The distance to the target, diameter of the target, and the task completion time for each trial are listed below.
  • After several trials, copy and paste the results to your favorite spreadsheet application and analyse them.
  • For educational purpose, I don't show the necessary equations and how to analyse the results here.
  • Source code: fitts_law_test

    Built with Processing and Processing.js