OpenAI and Bocconi experiment: ChatGPT access raised student work quality, causal-reasoning training boosted idea originality

Better answers, broader thinking: What students gain from ChatGPT and critical-thinking training

A randomized experiment with over 1,000 Bocconi University freshmen tested ChatGPT (GPT‑4o) access and causal-reasoning training separately and together. Students with ChatGPT scored nearly a full point higher on a 5-point rubric, producing more coherent, expert-like answers. Those who did the causal-reasoning exercise didn't score higher but generated a wider variety of unique ideas and better explained why their proposals might work or fail. Students who got both showed gains across the board. The paper notes that standard rubrics can miss originality, so schools may need to rethink how they assess student work.

Why it matters: OpenAI's official blog published an RCT-based education study with solid data, not pure marketing. But it's essentially research promoting their own product, and the education use case has limited direct impact on AI pros. Sits right at the featured threshold.