Another important role of the PS is that it allows you to explain, although briefly, some information that may not be accurately represented by your transcript or Curriculum Vitae. For example, your GPA might be low because your school places a cap on grades given to students belonging to your major. Another example would be explaining the connection between your undergraduate major and your chosen graduate major, which might seem incongruous at first inspection. For these reasons alone, it is extremely important that you follow a guideline in composing your own PS.
The Interview Starting Point _ The personal statement is also the starting point for many interview discussions and questions. When committee members sit down to interview an applicant, they often have just a few minutes to skim the application. Your personal statement/essay provides the perfect amount of information for them. They can pick out a few key points and use it as the starting ground for your interview. If this is the only part of the application that they may read, you need to make it perfect.