They say it doesn't matter what you major in during college. It might matter, however, if you want your personality to match your chosen field—lest you end up the lone nod-greeter in a marketing class full of exploding fistbumps.

According to a new meta-analysis, there are significant personality differences between students in different academic majors. For the review paper, Anna Vedel, a psychologist from Aarhus University in Denmark, analyzed 12 studies examining the correlation between personality traits and college majors. Eleven of them found significant differences between majors. The review examined the so-called “Big Five” traits: neuroticism, extraversion, openness to experience, agreeableness, and conscientiousness.

Arts and humanities majors, Vedel found, are in the unenviable position of being anxious, but not very organized. They were less conscientious than students in fields like science, law, or engineering. They also tended to score higher on neuroticism.

On the plus side, along with political-science majors, arts and humanities students also scored higher on openness than did economics, engineering, law, or science students. Openness is characterized by an active imagination, love of variety, and a wide range of intellectual interests.