- 
  
  Beginning of psychoogy, established the first psychology lab
- 
  
  Introduction of Wundit's structure, many of which were misinterpreted. Pshycology was established as an experimental science
- 
  
  Known as the father of American psychology, James introduced pragmatism, functionalism, and the theory of emotion
- 
  
  Mary was known for her self psychology and invented the P.A.T. ( paired association technigue )
- 
  
  Founder of psycholoanalysis, theory of psychosexual development, the Id, the ego, the super ego, and dream interpretation
- 
  
  Published "The Animal Mind", and invented the motor theory. Both led to more knowledge of human and animal psychology
- 
  
  Established a new brand of behaviorism. This became to be known as radical behaviorism
- 
  
  Set the stage of behaviorism, which rose to dominae pychology
- 
  
  Introduced the concept of classical conditioning. This is studied by every entry level psychologist
- 
  
  Founder of the driving forces behind the school of thought, theories including hierarchy of needs, self actualization, and peak experiences
- 
  
  Came up with different theories. Client centered therapy, concept of actualizing theory, and the concept of the fully functioning person
- 
  
  Theory of cognitive developmen. Provided support for the idea that children think differently than adults