A Bierens De Haan (2008, Hardcover) at the best online prices at eBay! Free shipping for many products! Comparative psychology refers to the scientific study of the behavior and mental processes of non-human animals, especially as these relate to the phylogenetic history, adaptive significance, and development of behavior. Research in this area addresses many different issues, uses many different methods and explores the behavior of many different species from insects to primates. Print version Bierens de Haan, Johan Abraham, 1883- Animal psychology : its nature and its problems.
It's an approach to understand people and their thoughts and their behaviors. The study of psychology aids psychologists greatly while helping them work in several area of the society and dealing with the problems.