Soft science

Definition
noun
Any of the specialized disciplines based on qualitative analysis or scientific investigations for which strictly measurable criteria may be difficult to establish.
Supplement
In contrast to hard science, soft science interpret human behavior, institutions, and society. Also, it depends upon conjecture, qualitative analysis of data, or uncertain experimental results. It includes psychology, sociology, anthropology, and political science.
Compare: hard science.

See also: pure science.