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Your Programming Students' Cognition with ChatGPT: Higher Performance, Lower Retention, and Reduced Ownership

Authors: Bergh, C.; Tag, B.; Vassar, A.; Renzella, J. · Year: 2026 · Tier: RCT · DOI/URL: https://doi.org/10.48550/arXiv.2609.21194

Adults / lifelong learning AI and learning Attention and memory

Links to claims

Supports (1)

ClaimBasis
C2HE experiment: ChatGPT during coding → higher task scores but lower immediate and 48 h recall without the tool; kill-condition test survived 2026-09-29 (arXiv preprint).

Review state: first-pass draft, pending human review.

Source note (Swedish, verbatim from the Kunskapsbank)

Syntes: Bergh et al. (2026) — ChatGPT programming performance vs retention

Källa: Bergh, C., Tag, B., Vassar, A., & Renzella, J. (2026). Your programming students' cognition with ChatGPT: Higher performance, lower retention, and reduced ownership. arXiv. https://doi.org/10.48550/arXiv.2609.21194

Metadata

Finding

  1. ChatGPT raised coding performance (89% vs 69%; Hedges' g = −1.24 favoring AI on performance) but lowered immediate recall (41% vs 53%; g = 0.71) and 48-hour recall (39% vs 52%; g = 0.77).
  2. No group × time interaction on forgetting; the retention gap was set by end of session.
  3. Self-attributed ownership of submitted code lower with ChatGPT (45% vs 81%; g = 1.05); mental-effort trajectory flatter (tool × task interaction, Holm p = .047).

Mechanism

Cognitive offloading during answer-capable GenAI use: higher assisted performance, lower durable learning without the tool, reduced ownership.

Limits

Single university cohort; arXiv preprint (not yet peer-reviewed journal version at bank fetch); how students used ChatGPT (copy-paste solutions vs debug) not experimentally controlled; physiological channels mostly inconclusive after quality gates.

This claim dies if …

A replicated HE/K–12 study measuring without the tool finds typical answer-capable GenAI use during practice does not lower retention vs a non-GenAI control.

Swedish implication

Measure coding knowledge without the assistant after GenAI-assisted practice; performance with the tool is not learning.

Links

Metadata as recorded

ID
AI-017
Tier
RCT
Closed-book follow-up
ja (cued recall immediately and 48 h later, no ChatGPT)
Titel
Your Programming Students' Cognition with ChatGPT: Higher Performance, Lower Retention, and Reduced Ownership
Författare
Bergh, C.; Tag, B.; Vassar, A.; Renzella, J.
År
2026 (arXiv preprint 2609.21194)
Källa/DOI
https://doi.org/10.48550/arXiv.2609.21194
URL
https://arxiv.org/abs/2609.21194
URL (PDF)
https://arxiv.org/pdf/2609.21194.pdf
Typ
between-subjects controlled experiment (N=59; n=55 analysed; ChatGPT-4.5 vs conventional web search without GenAI)
Åldersgrupp
vuxen / HE (first-year CS undergraduates)
Teman
ai-och-larande; uppmarksamhet-och-minne
Sparade fil
Bergh-etal-2026-ChatGPT-programming-retention.pdf
Hämtad
2026-09-29
Paywall
OA arXiv preprint (not yet journal-published at fetch)

Original files held in the project (not published): Bergh-etal-2026-ChatGPT-programming-retention.pdf