Last July, the Atlanta Public Schools became the poster district for teachers and principals behaving badly. State investigators found that, in 44 schools across the city, 178 teachers and administrators had systematically cheated on the state standardized tests taken by their students in 2009. The largest cheating scandal by far has cast a pall…

A technique is described for reducing the incidence of cheating on multiple choice exams. One form of the test is used and each item is assigned multiple numbers. Depending upon the instructions given to the class, some students will use the first of each pair of numbers to determine where to place their responses on a separate answer sheet, while…