| A | B |
| Biological | Search for chemical, biological, or electrical explanations for behavior; believe in nature over nurture. |
| Behavioral | Rely only on the observable; believe in nurture over nature. |
| Cognitive | Believe that thought processes are important; view the mind as a computer processing information. |
| Humanistic | Believe that people make choices as they work to improve themselves. |
| Psychoanalytic | Look for answers to behavior in the unconscious; believe that childhood experiences and dreams are key. |
| Cross-Cultural | Look for explanations by comparing experiences and achievements of different groups. |
| Watson | A behaviorist who believed he could turn in person into anything with the proper environment. |
| Pavlov | A physiologist who won the Nobel Prize for his work outlining the principles of classical conditioning. |
| Skinner | Strict behaviorist who dicards the idea of the mind because it cannot be observed or measured. |
| Bandura | Psychologist who developed social-learning theory by studying how children model behavior they see. |