Fact · Typing and writing speed
In the office study, typing speed and accuracy both declined later in the working day.
Checked against its source on October 16, 2026
In the source's own words
“During the day, they seemed to readjust this strategy, reflected in a decline in both typing speed and accuracy.”
Dynamics in typewriting performance reflect mental fatigue during real-life office work, Marlon de Jong et al., PLoS ONE, 2020, Abstract.
Open the original (DOI 10.1371/journal.pone.0239984)- What it measures
- The study recorded university employees for 6 consecutive weeks during regular office work.
- What it does not show
- The study does not give a single speed drop in words per minute, so the size of the change is not stated in the abstract.