12. The system of claim 10 , wherein the one or more interaction events comprise at least one of: levels completed in a gaming application, scenes completed in a gaming application, or checkpoints completed in a gaming application.
12. The system of claim 10 , wherein the one or more interaction events comprise at least one of: levels completed in a gaming application, scenes completed in a gaming application, or checkpoints completed in a gaming application. 13. The system of claim 12 , wherein the amount of time spent playing the game is normalized based on at least one of: a game length in levels; a game length in schemes; or a game length in checkpoints.