The Medical College Admission Test® (MCAT®) is a standardized, multiple-choice examination designed to assess your problem solving, critical thinking, and knowledge of natural, behavioral, and social science concepts and principles prerequisite to the study of medicine.
In April 2015, the AAMC launched a new version of the MCAT exam. Scores are reported in four sections:
Almost all U.S. medical schools and many Canadian schools require you to submit MCAT exam scores. Many schools do not accept MCAT exam scores that are more than three years old.
Here is a link to the official AAMC MCAT Guide: