A whole number shows for a moment; type it back. 2 digits up to 20, level by level, with your answer time.
Remember the whole number, then type it
About 3 minutes. Not medical advice. Stop if you feel dizzy, nauseous or strained.
A number appears all at once for a few seconds. When it hides, type it with your keyboard or the keypad. Level 1 has 2 digits; each level adds one, up to 20 digits (19 levels). One wrong answer ends the test. Your answer time is measured too.
This is a digit span test, a classic short-term memory measure; backwards adds working memory (you must flip it). A quick measure of how you did on this test today, on this device. Practice makes you better at the test itself; it is not a medical or IQ test.
Not medical advice. Stop if you feel dizzy, nauseous or strained.
Remember the gold balls, then follow them as they move. 7 levels: find 1 of 6 up to 6 of 12.
Click the numbers 1, 2, 3… in order before time runs out. 8 levels: 9 numbers up to 49.
Watch squares light up in order, then repeat it. Level 1: 3 × 3, 10 steps. Level 2: 4 × 4, 12 steps (unlocks after Level 1). A mistake restarts the level.
