What is Psychology? A combination of two terms; soul and/or mind (psyche)+(ology) the study of. The derivation of the word dates back to ancient Greek. Psychology is the science of mind and behaviour. Psychology evolved from Philosophy. Philosophers for years had been anaylising their thoughts, feelings and behaviours. This is called Introspectionism. This file was last modified by Psychology at 17-05-2007 02:40:11 AM HKT Source code