COMPARING THE PIZZA STUDIES TO SHOWING GREEN JELLY BEANS CAUSE ACNE. Alex Tabarrok at Marginal Revolution took note here that the pizza studies were like the “proof” that green jelly beans cause acne that xkcd ridiculed in strip 882. I posted about the green jelly beans here.
Dividing up the subjects in the pizza experiment into different groups is analogous to running the numbers on different colors of jelly beans.