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.
The personal statement is also a great place to explain more serious problems, like less_than_ideal grades or test scores. Don't be afraid to write something like, "I don't test well" in the statement. As long as you can provide a good reason for you app's problems, it's okay to address them directly. You won't be able to hide it from admissions officers anyway, so providing a reason for problems is always preferable to ignoring them.