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Processing Speed Test
A key links seven symbols to seven digits. Learn it, then type the matching digit for each symbol that appears. You have 60 seconds to complete as many as you can, so speed matters — but only correct answers count. See your score, accuracy and rating.
About the Processing Speed Test
This is a symbol-digit coding task, a classic measure of processing speed. Instead of judging whether something matches, you must retrieve a fixed symbol-to-digit rule from memory and translate it into a fast, accurate key press. The mapping never changes during the run, so any speed-up reflects fluency with the code.
Answer with the on-screen number pad or the number keys 1 to 9. A wrong digit flashes red and the symbol stays until you enter the correct one, so errors cost you time rather than ending the run. Your result is the number of correct entries in 60 seconds, with accuracy shown alongside.