Behavioral Psychology: What It Is and How to Use It What is Behavioral Psychology? Let's define behavioral psychology. Behavioral psychology is the study of the connection between our minds and our behavior. Sometimes you will hear behavioral psychology referred to as behaviorism. The researchers and scientists who study behavioral psychology are trying to understand why we behave the way we do and they are concerned with discovering patterns in our actions and behaviors. The hope is that if we can use behavioral psychology to help us predict how humans will behave, we can build better habits as individuals, create better products as companies, and develop better living spaces as communities.