Gilovich (1991) described an incident that he read about during a visit to Israel. A very large number of deaths had occurred during a brief time period in one region of the country. A group of rabbis attributed the deaths to a recent change in religious practice that allowed women to attend funerals. Women were immediately forbidden from attending funerals in that region, and the number of deaths subsequently decreased. How would you explain this phenomenon? How might you test whether the change in religious practice was the true cause of increased deaths?