Track a growing list of words until three mistakes
Decide whether each word is new or has appeared earlier in the run.
up to 80 words
2 min
Free, no sign-up
For the fairest comparison, retake on the same device.
Run stopped — start again when ready.
Sign in to keep this result and see how you change.
Results on screen · no email
About this test
For each word, say whether it is new or has appeared earlier in the run. Three mistakes or 80 words end the task. Results show correct judgements and how the run ended.
What this test reports
correct judgements
how the run ended
distinct words shown
the two kinds of mistake
How the task works
A word appears; press S or tap Seen if it has appeared earlier in this run, N or New if it has not.
New words keep entering the running list.
Three mistakes end the run.
So does reaching eighty words, so a run with no mistakes finishes rather than going on until you give up.
There is no time limit on each answer; eighty words take about two minutes.
Your answers stay in this browser tab. If you sign in, you can save your result (not your answers). When session replay is on, it can include visible questions, choices and results. Privacy details.
No response or result was sent or stored. Restart, or contact support with error code MTA-TASK-1.
Use the result
What this test adds
A run ends at three mistakes or 80 words. The result shows which stopping condition occurred and the two kinds of error.
A small next step
Notice whether your mistakes were seen words called new or new words called seen; the two point to different strategies.
Questions people ask
How long does this go on?
The run ends at 80 words or after three mistakes, whichever comes first. The result states which ending occurred.
What happens if I stop early?
Press Stop twice to end without a result, or use Back to leave. To receive the run summary, continue until three mistakes or 80 words.
Are the words ever repeated between runs?
The pool holds a hundred and twenty words and is shuffled at the start of every run, so a second run will share some words with the first but not in the same order or the same roles. Within a run, a repeated word is the point: that is what you are judging.
Allow Microsoft Clarity cookies for optional session replay? It records clicks and visible page content on eligible general pages and selected puzzle and skill tests, including questions, choices and results. Typed text and account controls stay masked. Personality, health, children's and private pages are excluded. How we use it