Before deciding which is the best TOEFL IBT review program suits you, it is important that a diagnostic exam is conducted first. This is a very vital tool for both the instructor and the candidate to know which sections to focus on. In Utest Review Center, a standard diagnostic exam is given to all candidates before finally deciding for a review program. The exam is administered similar to that of an actual exam when it comes to rules and facilities so that the candidate will really have a better picture of what TOEFL IBT is all about.