At the beginning of the experiment, you MUST click the Enter Full Screen button at the top-right corner to proceed in full-screen mode, DO NOT exit the full screen mode until prompted at the end of the experiment.
Once in the experiment, please DO NOT use the Back button, Refresh button, or close the window.
Once you are in the experiment, please read the explanations and the final answer thoroughly BEFORE clicking on the Correct / Incorrect buttons.