AI Assistance Reduces Persistence and Hurts Independent Performance

arXiv cs.AI / 4/7/2026

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Key Points

  • アルゴリズムが即時に完全な回答を出す設計だと、学習者の「粘り強さ(persistence)」が下がり、AIなしの実力が損なわれることを、人とAIのランダム化比較試験(N=1,222)で因果的に示した。
  • AI支援は短期的には成績を押し上げる一方、数学的推論や読解など複数タスクで、AIなしでは有意に成績が悪化し、早く諦めやすくなることが確認された。
  • これらの悪影響は非常に短いAIとのやり取り(約10分)でも現れ、長期的な学習に重要な「粘り強さ」が早期から損なわれうる点が警告される。
  • 発生メカニズムとして、AIがすぐ答えが返ってくる期待を形成し、当人が自力で試行錯誤する経験を奪うことで持続的な取り組みが減る可能性が示唆された。
  • 著者らは、AIモデル開発において即時のタスク完了だけでなく、長期的な能力形成のための足場かけ(scaffolding)を優先すべきだと提案している。

Abstract

People often optimize for long-term goals in collaboration: A mentor or companion doesn't just answer questions, but also scaffolds learning, tracks progress, and prioritizes the other person's growth over immediate results. In contrast, current AI systems are fundamentally short-sighted collaborators - optimized for providing instant and complete responses, without ever saying no (unless for safety reasons). What are the consequences of this dynamic? Here, through a series of randomized controlled trials on human-AI interactions (N = 1,222), we provide causal evidence for two key consequences of AI assistance: reduced persistence and impairment of unassisted performance. Across a variety of tasks, including mathematical reasoning and reading comprehension, we find that although AI assistance improves performance in the short-term, people perform significantly worse without AI and are more likely to give up. Notably, these effects emerge after only brief interactions with AI (approximately 10 minutes). These findings are particularly concerning because persistence is foundational to skill acquisition and is one of the strongest predictors of long-term learning. We posit that persistence is reduced because AI conditions people to expect immediate answers, thereby denying them the experience of working through challenges on their own. These results suggest the need for AI model development to prioritize scaffolding long-term competence alongside immediate task completion.