HOUSTON—The state’s higher education commissioner is proposing no more extra credit for the grade-point averages of Texas high school students in some advanced classes.

Commissioner Raymund Paredes says the proposal aims to bring more fairness to college admissions decisions. GPAs determine where seniors rank in their high school classes, whether they’re in the top 10 percent of their classes and thus guaranteed admission to a Texas public college or university.

Last month, Attorney General Greg Abbott affirmed a 2007 law and decided that all high school graduates in Texas will have their GPAs calculated the same way beginning with the Class of 2009. Abbott said the standard method for computing a GPA will be determined by the Texas Higher Education Coordinating Board.

The current debate centers on which courses merit extra points and which should even count in the grade-point average.