Fact · Typing and writing speed
0.45standard deviations
In the Noy and Zhang working paper, average evaluator grades for the treatment group rose by 0.45 standard deviations.
Checked against its source on October 16, 2026
In the source's own words
“Average evaluator grades in the treatment group increase by 0.45 standard deviations”
Experimental Evidence on the Productivity Effects of Generative Artificial Intelligence (working paper), Shakked Noy and Whitney Zhang, MIT Economics working paper, 2023, Results.
Open the original- What it measures
- Evaluators were experienced professionals in the same occupations, and they judged quality blind to group.
- What it does not show
- Working paper figure. The authors did not check the writing for factual accuracy.