Assalamualaikum wr.wb Psychology is a science that studies human behavior. There are many branches of psychology. one of the popular scientific branches of psychology is humanistic psychology with the character Abraham Maslow who put forward the pyramid of needs theory, then Behavioral Psychology with the character Carl Jung, Experimental Psychology with the character Wilhelm Wundt, and Personality Psychology with the character Sigmund Freud who put forward the Personality theory. Psychology was born in the city of Leipzig, precisely in the laboratory of Leipzig University, Germany in 1879 AD. Psychology is a scientific branch of philosophy, where philosophy itself is the parent of all scientific scope. From psychology we can learn lessons about how human life throughout the world works. Without stimulus-response theory there would be no such thing as good and effective world and state governance. because it is from stimulus-response theory that social intera...