Neil Sehgal
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nsehgal.bsky.social
Neil Sehgal
@nsehgal.bsky.social
CS PhD @upenn.bsky.social
Computational Social Science @WorldBank
Harvard, Brown alumn
http://sehgal-neil.github.io/
📈 Results:
✅ Both AI formats significantly boosted stool-test intent (+13 pts) over expert material.
🩺 For colonoscopy, no AI advantage over expert material.

Surprisingly: single AI message ≈ chatbot – despite participants choosing to spend 3.5 minutes longer with the chatbot!
July 14, 2025 at 2:06 PM
🚨 New study!
We tested whether AI-generated messages – single static messages vs. conversations – can boost intent to screen for colorectal cancer.

Turns out: short, tailored AI messages outperform expert-written materials & match conversations, at a fraction of the time! 🧵👇
July 14, 2025 at 2:06 PM
In a 15-day follow-up, gains from the reading arm stuck (+7 pts) while chatbot effects faded to ≈0. We also found no spill-over to flu/COVID or general vaccine hesitancy
April 30, 2025 at 9:40 AM
In an RCT with 930 parents (US/CA/UK, with kids old enough for the HPV vaccine): chatbots raised vaccine intent vs. no intervention—but neither variant beat simply reading official public-health materials, with the conversational chatbot doing significantly worse.
April 30, 2025 at 9:40 AM
🚨 New preprint on AI persuasion and public health 🚨

A 3-min conversation with GPT-4o nudged HPV-vax-hesitant parents (who obv knew it was AI & consented!)—BUT reading standard public-health material still outperformed chatbots in impact and longevity. Details below 👇
April 30, 2025 at 9:40 AM