Amos and I enjoyed the exchange and concluded that intuitive statistics was an interesting topic and that it would be fun to explore it together. That Friday we met for lunch at Café Rimon, the favorite hangout of bohemians and professors in Jerusalem, and planned a study of the statistical intuitions of sophisticated researchers. We had concluded in the seminar that our own intuitions were deficient. In spite of years of teaching and using statistics, we had not developed an intuitive sense of the reliability of statistical results observed in smal samples. Our subjective judgments were biased: we were far too wiling to believe research findings based on inadequate evidence and prone to colect too few observations in our own research. The goal of our study was to examine whether other researchers suffered from the same affliction.