Learn / Accuracy at speed

Why does typing accuracy fall when you type faster?

A lower accuracy score at higher speed shows a trade-off, not its cause. The useful next question is whether errors concentrate in one repeated key pair or scatter across the passage.

By PeakTock Updated

1. The PeakTock conclusion to look for

After a faster test

Faster-test result

PeakTock names one pair

Conclusion: the faster run contains one qualifying repeated transition. Practise that pair, then retest. Keep the claim limited to this result.

PeakTock names no pair

Conclusion: there is not enough evidence for one cause in this test. Keep the result as a comparison point. Do not select a random key drill from one bad run.

A repeated pair is more useful than a general instruction to “be more accurate.” It is a specific movement that PeakTock observed in your typing. For example, if it flags in the faster run, the conclusion is about the movement from T to H, not that either key is always slow.

2. Let PeakTock test the conclusion

  1. 01Set a normal baselineTake the 60-second test at a pace you can control. Note its WPM and accuracy.
  2. 02Push pace onceTake another test on the same keyboard and layout. Type faster, but do not deliberately create errors.
  3. 03Read the resultIf the faster result identifies a qualifying repeated pair, use the drill that the result offers. If it does not, stop there and gather another comparable result later.
Record the evidence from both tests
CheckControlled testFaster test
WPMRecord the resultRecord the result
AccuracyRecord the resultRecord the result
Named pairUse only if PeakTock names oneUse only if PeakTock names one

3. Use the exact drill, not a generic exercise

The pair drill changes the sample: every word contains the named transition. This gives that movement more attempts than a page of unrelated keys. Keep the pair order accurate, then take a new normal typing test to see whether the same pattern returns.

If the pair does not return, that does not prove it is permanently fixed. It only means this test did not reproduce the same evidence. Treat each new result on its own evidence.

4. When the Mac app gives the stronger answer

Use PeakTock for Mac when this happens in normal work, not only in a test. It learns from your own typing over time and can flag when accuracy falls as pace rises. That is a better signal for a repeating work pattern than one browser passage, but it is still coaching guidance, not a medical or ergonomic diagnosis.

The web test and Mac app use different models. The web test has a US-QWERTY key-difficulty model; the Mac app measures personal speed, accuracy, consistency, and evidence. Read the web test methodology and Mac methodology before you compare their scores directly.

Find the transition behind the mistake

The button opens the standard 60-second test. After a qualifying result, PeakTock offers the matching pair drill from the result screen.

Run the typing test

Why inspect a transition?

A large online typing study found that finger and hand use across letter pairs helped predict typing speed: Dhakal et al. (2018). The study used volunteers and cannot explain an individual result. PeakTock’s conclusion comes from the keystrokes it measured in your test, subject to its evidence gate; it does not use this research as proof of your personal cause.