| A | B |
|---|
| Sigmund Freud | He had a theory on psychosexual stages |
| Abraham Maslow | known for his hierarchy of Human Needs triangle |
| Carl Rogers | He called people "clients" not patients |
| B.F. Skinner | known for his research on conditioning with stimuli |
| Raymond Cattell | studied personality traits |
| Ivan Pavlov | conducted experiments with dogs which illustrated the conditioned reflex |
| Lawrence Kohlberg | preconventional level was a part of his moral reasoning theory |
| Erik Erikson | his 8 stages identified the social and emotional stages of a person |
| Carl Jung | he identified the introvert and extrovert personalities |
| Sigmund Freud | A psychoanalyst who did studies with the unconscious mind, dreams, etc. |
| Jean Piaget | intellectual development theories of stages of learning |
| Gordon Allport | theories on personality based on common traits |
