Dual Schulte Table
Take a 5x5 red-black Schulte table test online, then read your total time and seconds per target.
Tap 25 numbers, alternating black and red.
The less time it takes, the better.
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- Black runs 1 to 13, smallest first
- Red runs 12 down to 1, largest first
- Alternate one black, one red, until all 25 are tapped
A wrong tap does not stop the round and adds no time, but it is counted. Past 6 wrong taps the round no longer counts.
First time here? Practise first runs a 3×3 table so you can feel the alternation. It is not scored.
How to read your score
| Score | What it means |
|---|---|
| Under 1.6 s per target | On this 25-target Dual Schulte Table, under 1.6 seconds per target means a total time under 40 seconds. It is the fastest descriptive range used on this page, not a norm, pass mark, or population ranking. |
| 1.6 to under 2.8 s per target | On this 25-target Dual Schulte Table, 1.6 to under 2.8 seconds per target means a total from 40 seconds to under 70 seconds. It translates your own run and does not show what is normal for an age group or how many people you beat. |
| 2.8 to under 4.6 s per target | On this 25-target Dual Schulte Table, 2.8 to under 4.6 seconds per target means a total from 70 seconds to under 115 seconds. It is a descriptive conversion of this run, not a population average or a definition of a normal red-black table time. |
| 4.6 s per target and over | On this 25-target Dual Schulte Table, 4.6 seconds per target or more means a total time of at least 115 seconds. It is the slowest descriptive range used on this page, not a diagnosis, pass mark, or population ranking. |
These four bands are your own total divided by 25. They are not norms, not pass marks, and they do not say how many people you outpaced. A single round also swings on its own: a difference between two rounds does not mean you got faster or slower, so read a run of rounds rather than your latest one. And an average per number says nothing about any single step - the same total can come from very different individual searches.
How to play
- How does the Dual Schulte Table sequence work?: Learn the sequence before you start: black 1, red 12, black 2, red 11, continuing until black 13. The ready screen shows the opening taps so you can rehearse the colour and direction change before timing begins.
- How do you practice the Dual Schulte Table?: Choose Practice for a 3x3 round with the same alternating rule and red underline. It is not saved, so use it to learn which colour comes next before you begin the scored 5x5 table.
- How do you start the Dual Schulte Table test?: Press Start. Timing begins when the 5x5 table appears. Tap black 1, red 12, black 2, red 11, and keep alternating until black 13. The next-target readout shows the number only, so you must keep track of the colour.
- What counts as a mistake in the Dual Schulte Table?: Numbers 1 to 12 appear once in black and once in red. Choosing the right number in the wrong colour counts as a wrong tap. There is no fixed time penalty, but the clock keeps running; after more than 6 wrong taps you can finish, but the result is not saved.
- How do you read a Dual Schulte Table score?: Lower times are faster. The result shows your total seconds, wrong taps, and average seconds per target. Use the score band to translate that run; if you have at least 3 saved plain Schulte Table rounds, you also get a clearly labelled reference comparison.
What this measures
This 5x5 Dual Schulte Table contains 25 targets: black 1 to 13 and red 1 to 12. Alternate black upward and red downward until black 13. Lower total time is faster, and the page also divides your total by 25 to show average seconds per target.
Numbers 1 to 12 appear twice, once in each colour. One easy mistake is tapping the correct numeral in the wrong colour, so check both the number and whose turn it is. Red numerals also have an underline, so colour is not the only cue.
Wrong taps do not add a fixed penalty or stop the round, but the timer keeps running. Up to 6 wrong taps can still produce a saved score; after the 7th, you may finish and see the time, but that attempt is not recorded.
A correct tap under 120 milliseconds is treated as a blind tap and the same target returns; 3 in a row end the attempt without a score. Switching away, refreshing, stopping, or reaching 4 minutes also ends the attempt without saving it.
Each scored round uses a new number layout, so two times can differ because the boards differ. For a fair personal comparison, keep the device, input method, and viewing distance the same, and do not treat one faster or slower round as proof of lasting change.
After at least 3 saved rounds on the plain 5x5 Schulte Table, the result can show the two timings together as a reference. That comparison is not a population rank or a clinical measure, and it is not labelled as a personal switching-cost score.
FAQ
What is a Dual Schulte Table test?
A Dual Schulte Table test is a timed 5x5 number-grid task in which you alternate between an ascending black series and a descending red series, combining visual search with keeping track of which colour and direction comes next. This version is a shortened, non-standardized adaptation inspired by the 7x7 Gorbov-Schulte, or Schulte-Gorbov, table; it is not the standard form itself.
What is a good Dual Schulte Table time?
Lower is faster: on this version, a total below 40 seconds is the fastest descriptive band, equal to under 1.6 seconds per target, but it is not a population norm or a definition of normal. Use the four bands to translate your own score, keep the device and input method consistent, and do not treat one randomized board as proof of improvement.
What does the Dual Schulte Table measure?
This Dual Schulte Table measures how long one run takes while you visually locate 25 targets and alternate between two opposing number sequences, with wrong taps reported separately throughout the timed round. It describes performance on this task only, not general ability, a medical condition, or intelligence, and the page has no reference sample for ranking you against other people.
How is the Dual Schulte Table different from a standard Schulte Table?
A standard Schulte Table asks you to find one ascending series, while this Dual Schulte Table makes you alternate on every tap between black ascending numbers and red descending numbers. Both use the same 5x5 grid here, so after 3 saved standard-table rounds the page can show a reference comparison; that difference is not a personal switching-cost score.
How do you practice the Dual Schulte Table?
Practice the Dual Schulte Table by learning the colour-order pattern on the 3x3 practice board first, then repeating the 5x5 task with the same viewing distance, device, and input method. Aim for accurate alternation before speed: tapping the right numeral in the wrong colour uses the wrong-tap allowance, and more than 6 wrong taps makes the round unrecorded.
How does the Dual Schulte Table number sequence work?
The Dual Schulte Table sequence is black 1, red 12, black 2, red 11, continuing in strict alternation until black 13 finishes the 25-target board, with each number from 1 to 12 appearing once in each colour. The next-target cue shows the numeral but not the colour, so the alternating rule tells you which copy to tap.
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Last updated: 2026-10-12 · Scores stay on this device