Once you have read the instructions below:
Purpose of Experiment
This Experiment is designed to test your ability to estimate the passing of time.
How good are you at guessing how much time has passed?
Do people make more errors when estimating longer or shorter periods of time?
Are females better than males at estimating time?
Instructions
You are going to estimate the length of time the circle is black. It will turn black for between 1 to 10 seconds. Enter your guess (to the nearest half second) then hit the submit button. You should do this in your head without using any clock or other device.
You will need JavaScript enabled to run this experiment.
Good luck!