Wilhelm Wundt
Wilhelm Maximilian Wundt (; ; 16 August 1832 – 31 August 1920) was a German physician, physiologist, philosopher, and professor, known today as one of the founding figures of modern psychology. Wundt, who noted psychology as a science apart from philosophy and biology, was the first person ever to call himself a psychologist. He is widely regarded as the "father of experimental psychology". In 1879, Wundt founded the first formal laboratory for psychological research at the University of Leipzig. This marked psychology as an independent field of study. By creating this laboratory he was able to establish psychology as a separate science from other disciplines. He also formed the first academic journal for psychological research, "Philosophische Studien" (from 1881 to 1902), set up to publish the Institute's research.
Donald R. Peterson
Donald R. Peterson (September 10, 1923 – November 2, 2007) was professor emeritus of psychology at Rutgers University. Dr. Peterson was notable for advocating for a professional doctorate exclusive to professional psychologists, eventually leading to establishment of the Doctor of Psychology degree and programs. Establishing this degree as the standard doctorate for practicing psychologists was not embraced by most psychologists, who were concerned programs would abandon scientific principles in the name of greater clinical training. While Psy.D. programs are more likely to produce practitioners, this degree and research productivity are not mutually exclusive, and a number of psychologists holding the Doctor of Psychology degree have contributed significantly to scientific endeavors.