How much AI do these developers use in their normal work? Is your hypothesis that these people are 20% less productive now in their real work because they think AI gives them a big productivity use, so they use it a lot, but it actually hinders them? Or were they relatively unfamiliar with AI use, tried to use them an unusual amount for the experiment, and it backfired? Or is there some other important difference between their normal work and this experiment?
How much AI do these developers use in their normal work? Is your hypothesis that these people are 20% less productive now in their real work because they think AI gives them a big productivity use, so they use it a lot, but it actually hinders them? Or were they relatively unfamiliar with AI use, tried to use them an unusual amount for the experiment, and it backfired? Or is there some other important difference between their normal work and this experiment?