Fact · Typing and writing speed
The study found that letter pairs typed by different hands or fingers predict typing speed better than letter repetitions do.
Checked against its source on October 16, 2026
In the source's own words
“more predictive of typing speed than, for example, letter repetitions”
Observations on Typing from 136 Million Keystrokes, Vivek Dhakal et al., CHI 2018, ACM Conference on Human Factors in Computing Systems, 2018, Abstract.
Open the original (DOI 10.1145/3173574.3174220)- What it measures
- The study measured the time between keystrokes, and found that the pair of letters being typed mattered more to speed than repeated letters did.
- What it does not show
- The paper reports a relationship, not a size of effect or a training result. It does not show that drilling pairs would raise speed.