1. From Behavior to Temperament? temperament behavior temperament How do developmental psychologists find underlying dimensions when we can only observe specific behaviors? DevPsy.org

2. First Observation of Sea Monster(s) DevPsy.org

3. How many animals are under the water?

4. DevPsy.org

5. Second Observation of Sea Monster(s) DevPsy.org

6. How many animals are under the water?

7. DevPsy.org

8. Third Observation of Sea Monster(s) DevPsy.org

9. How many animals are under the water?

10. DevPsy.org

11. Number of Sea Monsters How could you tell the number of sea monster when you could only see parts of them? You saw visible parts move together and others move independently; you did an intuitive correlation. DevPsy.org

12. Number of Sea Monsters By looking at the correlations between all the parts we can see (observable behaviors), we can infer something about their underlying nature (theoretical constructs) DevPsy.org

13. Number of Sea Monsters Factor Analysis is a statistical method that looks at how lots of different observations correlate and determines how many theoretical constructs could most simply explain what you see. DevPsy.org