The document discusses cheating on high-stakes standardized tests in Chicago Public Schools and how teachers may have an incentive to cheat given the consequences for low scores. It analyzes test answer patterns from two 6th grade classrooms that show unusually high correlations, suggesting the teacher may have erased wrong answers and filled in correct ones. Characteristics of cheating teachers are said to be that they are equally likely to be male or female, younger, less qualified, and more prone to cheat after incentives are introduced for test performance.