This is a simple task that reveals a quirky blindspot.
It does require having a housemate (a partner, a roommate) who's willing to try it too. If you have one, get started!
Use the slider bars to answer the following questions:
At home, how often do you...
Ross, M. & Sicoly, F. (1979). Egocentric biases in availability and attribution. Journal of Personality and Social Psychology, 37(3), 322.