Universities must measure learning, both with and without AI assistance

  • CORRESPONDENCE

By

  1. Christoph Trattner
    1. University of Bergen, Bergen, Norway.

Marc Schmitt argues that the danger of artificial intelligence lies in passive use, and that universities should teach students to argue with AI models and assess how well they do so (see M. Schmitt Nature 657, 575; 2026). One measurement is missing. Assessing how a student spars while the model is present captures performance with the partner in the ring, not what the student can do once the partner leaves. The two can diverge: in a randomized trial involving secondary-school mathematics students, unrestricted chatbot access raised practice scores, but lowered performance on a subsequent exam taken without it (H. Bastani et al. Proc. Natl Acad. Sci. USA 122, e2422633122; 2025). An evaluation that stopped at the assisted session would have called that tutor a success.

Nature 659, 264 (2026)

doi: https://doi.org/10.1038/d41586-026-03559-1

Competing Interests

The author declares no competing interests.

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