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Data sets with this license (1)

Finding the best Chicago Style Pizza in SF

This experiment involved 12 tasters eating fresh Chicago-style pan, not stuffed, cheese pizzas from three San Francisco pizza joints: Patxi’s, Zachary’s, and Little Star. Also, two pizzas were shipped frozen from Chicago and reheated as part of the study. The experiment was done double-blind. See this blog post of the experiment for more details.
Free