Colored (Red/Green/Blue) digits fall from the top of the stage. Press a number (1, 2 or 3) that corresponds to the COLOR (R, G or B respectively) of the falling digit. You are being timed, so answer as fast as you can. Falling speed increases with time. A number hitting the "floor" before you guess correctly, ends the game. Simple? Maybe. Maybe not. The falling digit, and it's position don't always match the key number (representing it's color) you must press. At the end, The average time of your answers for "congruent" words (word color matches word meaning) and "incongruent" words (word color does NOT match word meaning) is compared. Also see Stroop Effect Test #1: https://scratch.mit.edu/projects/1170938551 and Stroop Effect Test #3: https://scratch.mit.edu/projects/1172227439
In psychology, the Stroop effect is the delay in reaction time between neutral and incongruent stimuli. Wikipedia. A digit that matches the one that you should press is considered a congruent stimulus. A digit that does NOT match the digit that you should press is considered an incongruent stimulus. An incongruent stimulus slows down our reaction time.
