TEA began rolling introduction to the NCES dropout definition with the class of 2006. Because the methodology is new, comparisons to rates for the Class of 2005 or earlier are invalid, and we no longer include pre-2005 data. 

Furthermore, dropout and completion rates for the classes of 2006, 2007, 2008, and 2009 cannot be compared to each other because the new definition is being implemented on a rolling basis. In other words, the 2006 longitudinal dropout uses the old state definition for the freshman through junior years and the new definition for their senior year. For the class of 2007, TEA calculates the longitudinal rate using the old state definition for the first two years and the NCES definition for the last two years, etc. See table 2, on p.6 of TEA’s 2006-07 dropout report at: https://tea.texas.gov/reports-and-data/school-performance/accountability-research/completion-graduation-and-dropout/completion-graduation-and-dropout-reports 

A code of NA generally indicates that the number is masked, either because it is a low number event or because a different category that is a low number event could be imputed based on the number.  The exceptions to this code are Loving and Kenedy counties, for which NA indicates that the data is not available or not applicable.

TEA began rolling introduction to the NCES dropout definition with the class of 2006. Because the methodology is new, comparisons to rates for the Class of 2005 or earlier are invalid, and we no longer include pre-2005 data. 

Furthermore, dropout and completion rates for the classes of 2006, 2007, 2008, and 2009 cannot be compared to each other because the new definition is being implemented on a rolling basis. In other words, the 2006 longitudinal dropout uses the old state definition for the freshman through junior years and the new definition for their senior year. For the class of 2007, TEA calculates the longitudinal rate using the old state definition for the first two years and the NCES definition for the last two years, etc. See table 2, on p.6 of TEA’s 2006-07 dropout report at: https://tea.texas.gov/reports-and-data/school-performance/accountability-research/completion-graduation-and-dropout/completion-graduation-and-dropout-reports 

A code of NA generally indicates that the number is masked, either because it is a low number event or because a different category that is a low number event could be imputed based on the number.  The exceptions to this code are Loving and Kenedy counties, for which NA indicates that the data is not available or not applicable.