The accuracy of this claim can easily be questioned due to the history of enrollment by grade in Texas. Texas is only now up to graduating as many as 79% of the 9th grade full enrollment 4 years earlier. TEA creates their higher graduation rates by shrinking the size of the 9th grade class in multiple ways, including eliminating the huge numbers taking 9th grade for a second time in Texas. Texas also "disappears" thousands of 9th graders by graduation due to designations such as "home schooling" or "returning to Mexico," or any of other of a large numbers of such categories used in Texas for this purpose.
Here are the Texas enrollment numbers by grade:
Even more troubling while some are bragging about a questionable graduation rate are the numbers indicating Texas has one of the lowest SAT score averages in the nation! How does Texas avoid talking about this?
|Data in chart above is from http://blog.prepscholar.com/average-sat-scores-by-state-most-recent|
Then using the 2015 SAT scores you see an almost identical pattern again!