Freshmen aspiring to be doctors may now have to plan their class schedules a little differently.

The Medical College Admission Test will undergo its fifth revision since it was first administered in 1928 then called the Scholastic Aptitude Test for Medical Students.

In spring 2015, when the new changes will take effect, medical school hopefuls will sit for six and a half hours to take MCAT2015 almost two hours longer than the current version. Each year, more than 85,000 students take the exam.

The test will still consist of four sections, but they have been redivided. It will now consist of Biological and Biochemical Foundations of Living Systems, Chemical and Physical Foundations of Biological Systems, Psychological, Social and Biological Foundations of Behavior and Critical Analysis and Reasoning Skills.

The Writing Section will also be discontinued.

The current version of the test has been in use since 1991, and the new version is likely to be in place until 2030, according to the Association of American Medical Colleges.

The AAMC took into account all medical schools individual comments about the new MCAT, Perelman School of Medicine Senior Vice Dean for Education and professor Gail Morrison said. The new test will assume matriculating students have prior knowledge of biochemistry and statistics.

Familiarity with some concepts from social sciences will also be expected, Senior Associate Director of Career Services Peter Stokes said.

Clearly there is more to being a physician than being a good scientist, Stokes said. The AAMC has been looking at a variety of ways of finding applicants who are likely to bring other valuable skills, knowledge and experience to the profession.

Students who have taken psychology, cognitive neuroscience, statistics and epidemiology courses will now have use of this knowledge in medical school, Morrison said. The AAMC recognizes that these liberal arts courses will be helpful for students.

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MCAT revisions bring change for medical school hopefuls