We measure our students using internal and external English proficiency tests. If you already have your proficiency tests, you should see a change after a semester or a year. We also have a test called the ISEPA that we have written to align to our curriculum. There are different versions that can be used for a pretest and post test. It comes with the course and there is a digital and paper version. At our schools we also use the SLATE by iTEP or the TOEFL. Some schools use the CELT scores.