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lIF
TRAITS ARE “PART
OF US”,
THEN THERE IS A GOOD CHANCE THAT THEY ARE IN PART ___ AND ___
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BIOLOGICALLY BASED HERITABLE
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lHumans
have ___ genetic variability than other organisms … Although most human genes
are shared across individuals (e.g., most of us have two legs and one head,
fortunately)
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More
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What is the disadvantages of genetic/biological theories of personality?
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- individuals should not be held accountable for their behavior - a genetic basis means that a trait cannot change - eugenics
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If
a trait is genetic, how can we fault someone for expressing it (e.g.,
impulsivity, inattention, aggression, emotional instability)
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- individuals should not be held accountable for their behavior
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If
a trait is genetic, it is “set in stone”
and we should not expect people to change
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- a genetic basis means that a trait cannot change
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Once
we figure out the genetic basis of all traits, we can engineer the “perfect”
human
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Eugenics
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lEnvironment plays a clear role in
the expression of ___ ____ (e.g., the Flynn effect, reverse Flynn
effect)
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Genetic variation
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lproportion of outward differences
in a trait that can be attributed to genetic variation
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Heritability
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Can behavioral genetics be applied to an individual?
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No, only populations
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Is behavioral genetics a static reality?
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No. Heritability within a population can change overtime
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Is heritability precise?
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No
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What are some methods used by biological studies
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- selective breeding studies - family studies - twin studies - adoption studies
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A good start
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- selective breeding studies
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2.Better, but shared environment
cannot be ruled out
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Family studies
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Identical vs. fraternal twins, plus
equal environments assumption
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Adoption studies
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