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Intelligence · 30 questions
Digit Span Test
The digit span test from the Wechsler intelligence scales, the standard measure of working memory. A series of digits appears on the screen, one a second. When it ends, type the digits back. In the first half you type them in the order shown; in the second half you type them backwards, last digit first.
The series start short and get longer. Two are shown at each length, and when you miss both the half ends, as in the clinical test. The score is the number of series you get exactly right, and your span is the longest series you managed. Do it in one sitting with no distractions, and do not write anything down. Most adults manage about 7 digits forward and 5 backward.
The series start short and get longer. Two are shown at each length, and when you miss both the half ends, as in the clinical test. The score is the number of series you get exactly right, and your span is the longest series you managed. Do it in one sitting with no distractions, and do not write anything down. Most adults manage about 7 digits forward and 5 backward.
Almost done!
Two optional questions, asked once: your age and sex let the results be broken down by who took the test.
Sex as at birth; gender as you identify. Languages you grew up speaking; several are fine, separated by commas. Leave blank anything you would rather not say.