-
received the first American Ph.D. in psychology. He later founded the American Psychological Association. -
founded the first formal laboratory of Psychology at the University of Leipzig, marking the formal beginning of the study of human emotions, behaviors, and cognitions. -
published 'Principles of Psychology,' that later became the foundation for functionalism. -
Foundation of the American Psychological Association (APA) headed by G. Stanley Hall, with an initial membership of 42. -
founded the first laboratory of psychodiagnosis. -
opens the first psychological clinic in the United States, focusing on the assessment and treatment of individuals with learning difficulties. -
developed the original formula for the Intelligence Quotient (IQ) after studying the scores on Binet's intelligence test. -
launched the first psychological test development company, not only commercializing psychological testing, but allowing testing to take place at offices and clinics rather than only at universities and research facilities. -
develops the Rorschach inkblot test, a projective psychological test used to assess personality traits and psychopathology. -
becomes the first female president of the American Psychological Association (APA). -
The APA publishes the first edition of the "Ethical Standards of Psychologists," establishing ethical guidelines for the profession. -
published 'Counseling and Psychotherapy' suggesting that respect and a non-judgmental approach to therapy is the foundation for effective treatment of mental health issues. -
The state of Connecticut passed licensure legislation for psychologists, becoming the first state to recognize psychology as a protected practice oriented profession. -
The Diagnostic and Statistical Manual of Mental Disorders (DSM) was published by The American Psychiatric Association marking the beginning of modern mental illness classification. -
First Doctor of Psychology (Psy.D.) professional degree program in Clinical Psychology was established in the Department of Psychology at The University of Illinois - Urbana/Champaign. -
American Psychological Society established. -
The first International Congress of Positive Psychology takes place, promoting research on positive aspects of human functioning. -
becomes president of the American Psychological Association and elevated Positive Psychology to the forefront.