The search for the material basis for mental phenomena was discarded by contemporary psychologists. Religious beliefs in the forces of good and evil have parallels in the humanistic and psychoanalytic theories of contemporary psychology. Man proceeded to study himself first and then to move outwards to study the earth and the stars 10. Freud's concept of psychology starts with an examination of normal behavior. Skinner defines psychology as a study of consciousness.
Science works towards generating generalizations.
The data of psychology are sensations, perceptions, behaviors, and experiences. Perceptions are interpretations of sensation. Theories never remain static because they are continually revised. Philosophy is the mother of all the sciences. Philosophy and science are different in that science uses a different method.