C Creative Writers and Day-Dreaming. Some of the more relevant psychologist is Skinner and Rotter who have taken personal psychology to greater depths and studies. The Contributions of Sigmund Freud - The founder of Psychoanalysis, Freud essay Freud was a physiologist, and medical doctor and a psychologist. The Psychology of Sigmund Freud - Sigmund Freud is one of the most controversial psychologists in history to this day, yet his theories and ideas are widely known. Freud made a crucial contribution to the study of understanding hidden human motivation Lippman,Weakness in Sigmound Freud's Theories - This essay will attempt to highlight and evaluate the strengths and weaknesses of the three main theories of. Sigmund Freud developed Psychodynamic theory which gave a detailed description of the levels of awareness (conscious, preconscious and. Sigmund Freud (born Schlomo Sigusmund Freud) was born on May 6, in the village of Freiberg, Moravia (now part of the Czech Republic) into a Je.