Should you choose this option, it is heavily important that you study as much and as hard as you can. How well you study this time will determine your level of improvement in comparison to your previous score. Many testing centers offer classes to help students taking the TSI learn how to study properly and prepare themselves for the exam. You may also find a large body of testing preparation materials online, which are provided by many schools throughout the state of Texas. It would be wise for you to consult the testing center where you’ll be taking your retest in order to figure out scheduling for both any study classes at the center as well as dates for the test.