Abstract
The old controversy about the epistemic status of psychological sciences is useless and sterile. Psychology is ether a hard science nor a soft science. It is an ecological life science, whose object is the whole system of co-developmental relations constituted by the presence of the organism in a given environment. After criticizing the positions of the traditional epistemic debate between hard and soft views of psychology, I propose a way to fundament the core concepts in the method of complementary negation, based on cogenetic logic. Then, I defend the need to develop a third way: an ecological epistemology of psychology.