Negative Chi Square, Einstein, and the Iraq Conflict

摘要

A series of three papers highlighting potential problems with the score test leads the November issue of The American Statistician. Conditions under which it can be negative (even in large samples) or otherwise inconsistent are discussed first by B. J. T. Morgan, K. L. Palmer, and M. S. Ridout; second by Geert Molenberghs and Geert Verbeke; and third by David A. Freedman.