Here's where I saw it. And yes, I admit sloppiness with my word choice. "Differently from the usual Direct Response technique, in RR, respondents toss coins t

Here's where I saw it. And yes, I admit sloppiness with my word choice. "Differently from the usual Direct Response technique, in RR, respondents toss coins to determine whether they will respond to the question or just mark “yes”. This still allows admission rates to be calculated, yet it guarantees full anonymity to respondents because no one can tell whether an individual respondent answered “yes” to the question or because of chance." https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2685008/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2685008/ https://en.wikipedia.org/wiki/Randomized_response https://en.wikipedia.org/wiki/Randomized_response