The Medical College Admission Test (MCAT), Dental Admissions Test (DAT), are standardized, multiple-choice examinations designed to assess the examinee's problem solving, critical thinking, writing skills, and knowledge of science concepts and principles prerequisite to the study of medicine and dentistry. Scores are reported in Verbal Reasoning, Physical Sciences, Writing Sample, and Biological Sciences. Medical colleges consider MCAT, and/or DAT scores as part of their admission process. Almost all U.S. medical and dental schools require applicants to submit MCAT/DAT scores. Many schools do not accept MCAT/DAT scores that are more than three years old.
The Graduate Record Examination (GRE) measures verbal reasoning, quantitative reasoning, and critical thinking and analytical writing skills that have been acquired over a long period of time and that are not related to any specific field of study. The GRE Subject Tests gauge undergraduate achievement in 8 specific fields of study and is often required for admission into a master's degree program.