PSY 351 Lecture Notes - Lecture 10: Twin, Twin Study, Dhow
Document Summary
Much research on the role genetics plays in our personality. Monozygotic = 1 egg = share 100% of their genetic makeup. Dizygotic = paternal = 2 eggs = share 50% Give twins various personality measures, correlate their scores. In general, dz twins" scores on personality measures tend to correlate from 0. 25 to 0. 30. Researchers assume that mz and dz have equally similar environments. There is evidence that mz twins share more of their environment than dz twins. Mz twins treated like one unit (dress same) Mz twins much more similar to each other on this dimension than dz twins. Introverts = more inborn arousal more sensitive to stimulation prefer lower levels of stimulation. Introverts more inborn arousal, more sensitive to stimulation, prefer lower levels of stimulation. Examined differences in where an dhow they studied. Extraverts = chose to study in library locations that provided external stimulation (open spaces)
