Notes from Lecture 4 - What Parts of my Personality are Set at Birth?
Notes from Lecture 4 - What Parts of my Personality are Set at Birth? Psych 115S
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This 2 page Class Notes was uploaded by Emme Notetaker on Tuesday August 4, 2015. The Class Notes belongs to Psych 115S at Stanford University taught by Yun Zhang, Natalie Colich in Spring 2015. Since its upload, it has received 245 views. For similar materials see Personality Psychology in Psychlogy at Stanford University.
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Date Created: 08/04/15
Are Set At Birth longitudinal design gt collecting multiple data points from the same peopleperson over a span of many years allows for the study of intra individual change original longitudinal study was challenged a lot because the researcher Lewis Terman took the kids under his wing and could have influenced the development of their personalities the Big Five boiled down to three terms gt positive emotionality negative emotionality and constraint selfcontrol homotypic continuity gt responsesresults for the same measuring instrument end up being the same over a certain span of years structural continuity gt correlations between items stay the same rank order continuity gt rank within a group stays the same personalities seem to stabilize over time especially as one gets older environment stabilizing routineshabits absolutemeanlevel continuity gt same mean score on a certain section such as extraversion difficult to administer the exact same test across many years because some forms of the test may not be appropriate for all ages competence heterotypic gt responsesresults to slightly different measuring instrument end up being similar over a certain time span Dunedin research experiment at age three categorized into welladjusted undercontrolled inhibited confident and reserved then at age 18 the categories were looked at more specifically in comparison to the entire research group seen again at age 21 and 30 childhood self control predicts health and wealth outcomes in adulthood attrition can bias your results they take a long time to research sometimes difficult to make the research generalizable cohort effect gt a big life event that can change the people who you re studying and affect your results role of genetics in personality and behavior Sir Francis Galton gt interested in behavioral genetics phenotype genes environment genes based on environment personality just because you have a certain gene doesn t mean that the environmentsituation you find yourself in won t change the way you act twin studies gt our environment influences us shared factors unshared factors heritability coefficient gt MZ gt monozygotic twins gt identical twins DZ gt dizygotic twins gt fraternal twins MZr DZr2 HC task orientation extraversion and activity may be influenced more by heritability than by the environment agreeableness conscientiousness and openness may be influenced more by the environment than by heritability MZ twins separated at birth without knowledge of the other personality is about 40 heritable
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