Controversial Issues Exam 2 Part 2

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  1. Nature Vs. Nurture Life article were you born that way?
    (Nurture assumtion / Parent trap
  2. Two Jims are pretty amazing in that they had in common
    • Chain smoking Salems
    • marrying, divorcing, and marrying a second time to women with identical names
    • drinking Miller Light; vactioning on the same half mile beach in FL
    • Appearing virtually identical on IQ and persoanlity tests
  3. Behavior Genetics
    • modern approach to nature/nurture. Genes and enviroment constantly interact in complex way determine behavior.
    • The older we get the mmore our genes shape our behavior
  4. High heritabilities
    Are reported in "were they born that way"
  5. Sandra Scarr
    Suggest that so long as the parents good enough, one set of parents will be about as good as another an will not have much impact on the overall personality of the child
  6. Jerome Kagan
    Most well known researcher on the topic of behavioral inhibition and shyness

    • 1. Very behaviorally inhibited children are at very high risk for developing anxiety disorders as adults
    • 2. behavioral inhibition has a strong heritable or genetic compenten
    • 3. enviroment is also influential
  7. Judith Harris
    Wrote Controversial book "The Nurture Assumption"

    • 1. Parents have less impact on development than do peers and teachers
    • 2. Parents dont contribute much more than genes
    • 3.Conact lenses, teeth being straightenes, clear skin, excess weight loss, and dressing will do alot more for a struggling child than a hug and reassurance
    • Her views are extreme but she has impressive support from David Lykken, Roberts Sapolsky, and others
  8. Nature Vs. Nurture: Are you a natural?
    Lykken, Bouchard, et al
  9. Causes most people would cite as contributing to making you "the person you are"
    • 1. The child rearing practices of your parents
    • 2. The influence of brother, sisters, grandparens, and others
    • 3. key life - changing events
  10. Enviromental Bias id held by most people over gentics, why?
    • 1. Behavorism has been dominant during the second half of the 20th centtury
    • 2. It is difficult to observe visible evidence of genetic and biological causesof behavior
    • 3. genetics causes suggest "determinism" and lack of "free will"
  11. Bouch and Lykken's Research
    Involves pairs of twins, subjects undergo 50hours of extensive testing
  12. Indentical Twins ( Monozygotic or MZ)
    develop from a single fertilized egg and share 100% of thier genes
  13. Fraternal Twins (Dizygotic DZ)
    develop from two different fertilized eggs and share about 50% of genes
  14. Logic of the research
    If trait is hertibale, twins apart should be silimar as twins reared together
  15. SImilar Index
    the compared correlations for twins apart and twins together pairs and computed a similarity index in the form of a quotient. the closer to one shows twins apart is to twins together
  16. Results
    • similarity indices very high .8 to 1.0 range
    • show enviroment had negligible impact on shaping personality
  17. Conclusion
    • genome accounts for most of the variation
    • some things are genetic, some not
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Controversial Issues Exam 2 Part 2
2012-03-25 05:21:13
Controversial Issues Exam Nature vs Nurture

Nature Vs. Nurture Controversial Issues Exam 2 Part 2
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