Fact · Typing and writing speed
In a 2016 CHI study of mobile keyboard suggestions, the authors found that the costs of attending to and using suggestions impaired average time performance.
Checked against its source on October 16, 2026
In the source's own words
“the costs of attending to and using the suggestions impaired average time performance”
A Cost-Benefit Study of Text Entry Suggestion Interaction, Philip Quinn and Shumin Zhai, Proceedings of the 2016 CHI Conference on Human Factors in Computing Systems (ACM), 2016, Abstract.
Open the original (DOI 10.1145/2858036.2858305)- What it measures
- Participants transcribed text while suggestions were always shown, never shown, or shown only above a probability threshold.
- What it does not show
- Transcription of given sentences, not composing. The effect is an average across participants.