Home›Clinical Psychology›Principal TheoryBrowse ByPrincipal TheoryFactsPrincipal TheorySourcesComments (0)Reader Challenges (0)FactsComparisonEra of EmergenceWell-attested1896 1Principal TheoryFilter Results5 entriesBranch of PsychologyAllClinical Psychology (4)Nationality / CultureAllAustria (2)United States (3)Era (Birth Year)All1856 (2)1921 (1)1924 (1)Show ResultsBeck's Cognitive Theory of DepressionPrincipal Theory1 entryPsychoanalytic TheoryPrincipal Theory1 entryPsychosexual DevelopmentPrincipal Theory1 entryRelational Frame TheoryPrincipal Theory1 entryTerror Management TheoryPrincipal Theory1 entrySources1. Wikipedia: Clinical psychologytier 2WikipediaClinical psychology, History sectionQuote, Clinical psychology, History sectionThe field is generally considered to have begun in 1896 with the opening of the first psychological clinic at the University of Pennsylvania by Lightner Witmer.View the SourceComments (0)No comments yet. Be the first to share a thought.Sign in to join the discussion.Reader Challenges (0)No disputes yet. Spotted an error or a better source? Open the first one.Sign in to dispute this or suggest a correction.