The Graduate Management Admission Test (GMAT) is a standardized computer adaptive test used by business schools to help determine if a student is ready for graduate school. The test takes approximately three and a half hours and assesses students on analytical writing, integrated reasoning as well as quantitative and verbal skills. GMAT prep courses help prepare students to take the exam by helping them identify their strengths and weaknesses, providing a structured study plan, as well as access to a breadth of practice questions and other resources.