| A | B |
| Charles Darwin | evolutionist |
| Ivan Pavlov | classical conditioning of dogs |
| Erik Erikson | Psychosocial Stages of Development |
| Sigmund Freud | Psychosexual Stages of Development |
| Eleanor Gibson | visual cliff experiment |
| Albert Bandura | Bobo doll experiment/Social Learning Theory |
| John B. Watson | Albert & the rat experiment |
| Mary Cover Jones | Peter & the rabbit desensitization |
| BF Skinner | Operant Conditioning with pigeons |
| Daniel Goleman | Emotional Intelligence |
| Edward Tolman | cognitive mapping |
| John Locke | tabula rasa |
| Franz Gall | phrenology |
| Rene Descartes | "I think, therefore I am" |
| John Bowlby | secure attachment theory |
| Jean Piaget | CognitiveStages Theory |
| Lawrence Kohlberg | Moral Development Theory |
| Hippocrates | 4 Humors (fluids) |
| Wilhelm Wundt | 1st scientific study in psychology |
| E. Thorndike | Law of Effect |
| Konrad Lorenz | imprinting |
| Dr. Benjamin Spock | baby care |
| Abraham Maslow | Humanism Hierarchy of Needs |
| Carl Rogers | Unconditional Positive Regard |
| H.Ebbinghaus | memory studies |
| John Locke | tabula rasa |
| Carl Jung | collective/personal unconscious |
| Alfred Adler | inferiority complexes will motivate |