How it's measured
Each round adds one random step to a growing sequence and plays it back to you with a brief highlight on each pad. You then reproduce it by clicking the pads in the same order. As long as you're correct, the sequence keeps growing; the test ends on your first mistake, and your score is the longest sequence you successfully reproduced before that.
Frequently asked questions
What kind of memory does this test measure?
Mostly short-term/working memory — holding and reproducing a sequence for a few seconds, similar in spirit to classic memory-span tasks, simplified into a game.
What's a typical sequence length?
Many people land around 5-7 steps, in line with the classic idea that short-term memory comfortably holds about seven items. Going further usually means you're grouping steps into chunks.
Does practice improve my score?
Yes, a bit — most people improve over a few tries as they find a rhythm or grouping strategy. That's expected, not a sign the test is inconsistent.