Fact · Typing and writing speed
The 2003 error framework analyzes the presented text, the keystrokes and the transcribed text together.
Checked against its source on October 16, 2026
In the source's own words
“It combines the analysis of the presented text, input stream (keystrokes), and transcribed text.”
Metrics for Text Entry Research: An Evaluation of MSD and KSPC, and a New Unified Error Metric, R. William Soukoreff and I. Scott MacKenzie, Proceedings of the ACM Conference on Human Factors in Computing Systems (CHI 2003), pp. 113-120, 2003, Abstract.
Open the original- What it measures
- Looking at all three texts lets researchers separate errors that were corrected from errors that remained in the final text.
- What it does not show
- The framework is designed for controlled experiments, where the presented text is known in advance.