The University of Michigan has failed to help its students better understand American history, politics and government, according to a report released Tuesday. In fact, students surveyed at the university scored an \"F\" on a test of key American concepts, according to the national survey administered by the University of Connecticut\'s Department of Public Policy on behalf of the Intercollegiate Studies Institute. U-M is not alone, according to the report. It was one of 16 colleges surveyed, including Brown, Georgetown and Yale, where seniors know less than freshmen about America\'s history, government, foreign affairs and the economy -- a concept called \"negative learning.\" The study surveyed 14,000 undergraduates at 50 colleges, including Michigan\'s Calvin College and Spring Arbor University. The students were asked 60 multiple choice questions that tested their knowledge of American history and other subjects. U-M ranked No. 35, while students at Calvin College in Grand Rapids came in No. 3 and students at Spring Arbor University came in No. 6. Schools were selected because combined they statistically represent all four-year public and private universities of various sizes in the nation.