Fact · Typing and writing speed
The authors hypothesize that substitution errors are common when typists are less consistent and have a poor mental picture of where their fingers are.
Checked against its source on October 16, 2026
In the source's own words
“We hypothesise that substitution errors are common when participants are less consistent in typing and have a poor mental representation of the fingers’ position.”
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
- A substitution is a wrong character typed in place of the intended one.
- What it does not show
- A hypothesis from the authors, not a tested result.