Anniston High has two-year jump in graduation rateD.C.-based education policy advocacy organization, said chronic absenteeism is one of the main causes of lower graduation rates across the country. "Obviously, students that are not in school fall more behind, then there is less engagement and it's a domino effect," Cardichon said. Cardichon said tracking students who are routinely absent is more effective than just taking daily school attendance. "You may not think you have an absentee problem with just daily attendance," Cardichon said. "It might show you have 90 percent daily attendance, but that might not be the same kids there every day."