Fact · Typing and writing speed
1.02percent uncorrected errors (trained typists)
Trained typists left fewer errors uncorrected than untrained typists: 1.02 percent against 1.23 percent.
Checked against its source on October 16, 2026
In the source's own words
“Also, trained typists leave fewer errors uncorrected (x = 1.02%) than do untrained typists (x = 1.23%).”
Observations on Typing from 136 Million Keystrokes, Vivek Dhakal et al., CHI 2018, ACM Conference on Human Factors in Computing Systems, 2018, Results, Errors and error-correction behaviour.
Open the original (DOI 10.1145/3173574.3174220)- What it measures
- Trained typists are those who reported having had typing training in the study questionnaire; untrained typists reported no typing course or training.
- What it does not show
- The difference is small in absolute terms (about 0.2 percentage points). The paper reports it as a comparison of two groups, not as a cause.