| Term | Definition |
| deprivation homosexuality | when homosexual activity occurs only in certain situations, ex: prison |
| biological theory(explanations of homosexuality) | hormone imbalance, prenatal factors, brain factors, genetic factors |
| psychoanalytic theory (of homosexuality) | fixation at immature stage of development, persisting negative Oedipus complex |
| Learning theory (of homosexuality) | sex drive channeled through experience |
| Bem's Interactionist theory (of sexuality) | biological factors on temperment determine & resultant influences; exotic becomes erotic (boys vs. girls) |