Document Number: 10262The Importance of Being in School: A Report on Absenteeism in the Nation's Public Schools - This report examines the issue of chronic absenteeism, defined as missing more than 10 percent of a year’s school days. As most states track average daily attendance, the authors contend, the instance of chronic absenteeism is understated. This exploratory study parses attendance data from six states and finds chronic absenteeism averaging 14% of students, which, if the rate holds nationally, equates to about seven million students. The authors urge policymakers considering extended school day and year policies to consider the issue of chronic absenteeism. (Johns Hopkins University Center for Social Organization of Schools, May 2012)...