Neuroticism Arts and humanities scored consistently high on neuroticism compared to all other groups. Medium effect sizes were often found in comparisons with engineering, law, and sciences. Psychology also scored higher than most other groups, sometimes rivalling arts and humanities, and medium effect sizes were found in comparisons with Economics. Economics and business scored consistently lower than other groups.

Extraversion Economics, law, political sciences and medicine scored higher than arts, Humanities, and Sciences, and the differences often represented medium effect sizes.

Openness Humanities, arts, psychology, and political Sciences scored higher than other academic majors, and effect sizes were often moderate or even large in comparisons with economics, engineering, law, and sciences.

Agreeableness Law, business, and economics scored consistently lower than other groups, and a few medium effect sizes were found in comparisons with medicine, psychology, sciences, arts and humanities.

Conscientiousness Arts and humanities scored consistently lower than other academic majors, and medium effect sizes were found in comparisons with sciences, law, economics, engineering, medicine, and psychology.

Source: MailOnline