What counts as a good sequence memory score?
The average player reaches a sequence length of about 9. Levels 5 to 7 are below average, 8 to 10 is typical, 11 to 14 is strong, and 15 or more is exceptional. The test is a browser version of the Corsi block-tapping task, a standard clinical measure of visuospatial short-term memory.
What the Sequence Memory measures
- Sequential visuospatial memory: order as well as location.
- Spatial span, the visual counterpart of digit span.
- Sustained concentration, since a single lapse at any point ends the run.
How the test works
- One square flashes. Repeat it.
- The same sequence replays with one new square added to the end.
- Repeat the whole sequence in order each time.
- A single wrong tap ends the run. Your score is the longest sequence you reproduced correctly.
Sequence Memory score benchmarks
| Level | Score | What it means |
|---|---|---|
| Exceptional | Level 15+ | Well into the top few percent. |
| Strong | Level 11 to 14 | Clearly above typical. |
| Average | Level 8 to 10 | Where most players finish. |
| Below average | Level 5 to 7 | Often a concentration lapse rather than a capacity limit. |
| Low | Level 1 to 4 | Usually means encoding stopped partway through the sequence. |
Percentiles on your result screen are calculated against published population norms until enough scores are recorded here to rank against real players.
What affects your sequence memory score
- Chunking
- Grouping the sequence into runs of three or four is what separates level 8 from level 13.
- Rhythm
- Encoding the sequence as a rhythm or a traced path is far more robust than memorising isolated squares.
- Serial position
- The beginning and end of a sequence are remembered best. Middles are where runs break, so give the middle extra attention.
- Concentration
- Because one error ends the run, a single lapse anywhere costs the whole attempt.
How to improve your score
- Trace the sequence as a continuous path with your eyes, not as separate flashes.
- Chunk into groups of three or four and rehearse the groups.
- Rehearse silently during the replay rather than waiting passively for your turn.
- Concentrate hardest on the middle of the sequence. That is statistically where runs end.
Frequently asked questions
What is a good sequence memory score?
Around level 9 is average. Level 11 to 14 is strong, and 15 or above is exceptional. Most players finish between 8 and 11.
What is the Corsi block-tapping task?
A clinical test of visuospatial short-term memory in which an examiner taps a sequence of identical blocks and the participant repeats it, with the sequence growing until they fail. This game uses the same paradigm. Typical adult Corsi spans are around 5 to 6 in clinical settings, which are administered more strictly than a browser game.
How is this different from visual memory?
Visual memory shows you a whole pattern at once and asks which squares were lit. Sequence memory shows squares one at a time and requires the order too, which makes it a test of sequential rather than simultaneous memory.
Why do I always fail in the middle?
Because of the serial position effect. The first and last items in any sequence are recalled best, and the middle is weakest. Deliberately over-rehearsing the middle is the standard fix.
Can sequence memory be improved?
Your score on this task, yes, mainly by chunking and by encoding rhythm. Evidence that it transfers to unrelated memory tasks is weak.
Sources
- Corsi, P. M. (1972). Human memory and the medial temporal region of the brain. Doctoral dissertation, McGill University.
- Kessels, R. P. C., et al. (2000). The Corsi block-tapping task: Standardization and normative data. Applied Neuropsychology, 7(4), 252 to 258.
These games are for curiosity and practice. They are not diagnostic instruments and no result here should be read as a clinical or IQ assessment.
