Fact · Typing and writing speed
58.6percent
In a simulation study of AAC communication, an advanced word prediction system gave a 58.6 percent improvement in communication rate over letter-by-letter entry.
Checked against its source on October 16, 2026
In the source's own words
“word prediction systems can in fact speed communication rate (an advanced system gave a 58.6% improvement)”
Word Prediction and Communication Rate in AAC, Keith Trnka et al., University of Delaware (author copy of the paper), 2008, Abstract.
Open the original- What it measures
- AAC users typing letter by letter on an on-screen interface, at simulated communication rates.
- What it does not show
- A simulation for AAC devices. The same gain would not apply to a phone or laptop keyboard.