EntityQ1399152· pop 16· linked from 21 articlesLightner WitmerSign in to saveAmerican psychologist (1867-1957)Connectionsdevelopmental psychologyEntityWilhelm WundtEntityclinical psychologyEntityEnglish languageConceptBerlinEntityhistoryEntitylawEntitypsychologyEntityPennsylvaniaEntityCatholic ChurchEntityPhiladelphiaEntityAmerican Civil WarConceptInternational Standard Book NumberEntitycrimeEntityHarvard UniversityEntityInternational Red Cross and Red Crescent MovementEntityWilliam JamesEntitydigital object identifierEntityColumbia UniversityEntitydyslexiaEntityCategories1867 births1956 deaths19th-century American writers19th-century psychologists20th-century American psychologists20th-century American writersAcademics from PennsylvaniaAmerican clinical psychologistsEducators from PhiladelphiaMembers of the American Philosophical SocietyUniversity of Pennsylvania alumniUniversity of Pennsylvania faculty