Texas education authorities said the number of schools falling short of minimum standards and placed on the Public Education Grant list doubled from 2012 because of newer, higher standards.
The list released by the Texas Education Agency on Thursday includes a total of 892 schools in 2013, up from 456 in 2012.
TEA spokeswoman DeEtta Culbertson said that, "historically, when changes are made to the accountability system, (the state uses to measure student performance) the number of schools that are included in the list tends to rise."
Over the years, TEA has added student groups or components to the accountability system. They have also increased the passing grades, Culbertson added. As schools and districts become more familiar with the new system, the number of schools that fail to meet the standard begins to decline.