The field of psychology is a very broad field comprised of many smaller specialty areas. Each of these specialty areas has been strengthened over the years by research studies designed to prove or disprove theories and hypotheses that pique the interests of psychologists throughout the world. While each year thousands and thousands of studies are completed in the many specialty areas of psychology, there are a handful that, over the years, have had a lasting impact in the psychological community as a whole. Some of these were dutifully conducted, keeping within the confines of ethical and practical guidelines. Others pushed the boundaries of the field and created controversies that still linger to this day. And still others were not designed to be true psychological experiments, but ended up as beacons to the psychological community in proving or disproving theories.