Intelligence

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Who are the authors of "The Bell Curve"?
Herrnstein and Murray, 1994
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What assumptions did Herrnstein and Murray, 1994 make in their book "The Bell Curve"?
1.There's an overall intelligence factor 2.IQ tests are specifically designed to measure this general factor 3.IQ is stable(ish) across a persons life 4.Properly administered IQ tests are not biased 5.Cognitive ability is heritable
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What percentage of people have an average IQ according to the bell curve?
70%
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What IQ level is considered high intelligence?
115-130
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What IQ level is considered to be exceptionally gifted?
130-145
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What percentage of people are considered exceptionally gifted according to the bell curve?
2.3%
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What are the four main concepts to Herrnstein and Murray's 1994 book?
1. The Cognitive Elite 2. Socioeconomic Variables and IQ 3. Race and IQ 4. Social Policy
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What studies show IQ may not be stable over a person's lifetime?
1.Jones (1941) and Deary et al. (2000) - found IQ to be correlated over time 2. Ceci (1990) -meta-analysis on the impact of schooling 3. Whalsten (1997)- shows IQ to improve
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What does NCDS stand for?
National Child Development Study
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CHES
Child Health and Education Study
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Who compared black and white children adopted and brought up in similar situations?
Eyferth, 1961
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What did Tizard, 1974 do?
Studied British children in residential nurseries, and gave the three tests
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What was the general outcome of Tizard, 1974 study?
White children generally tended to score lower than black or mixed race children
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What problems were associated with the Tizard, 1974 study?
1. Young age of recruitment 2. Problems with how representative the sample is
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Who is behind the Minnesota trans-racial adoption study?
Scarr and Wienberg (1976) and Wienberg et al. (1992)
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What was the overall result of the Minnesota trans-racial adoption study?
Blacks scored the lowest, then mixed, then whites
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What are the problems associated with the Minnesota trans-racial adoption study?
1. Black children are adopted much later 2. Black biological mothers are less well educated 3. Adoptive parents of black children are less well educated
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Card 2

Front

What assumptions did Herrnstein and Murray, 1994 make in their book "The Bell Curve"?

Back

1.There's an overall intelligence factor 2.IQ tests are specifically designed to measure this general factor 3.IQ is stable(ish) across a persons life 4.Properly administered IQ tests are not biased 5.Cognitive ability is heritable

Card 3

Front

What percentage of people have an average IQ according to the bell curve?

Back

Preview of the front of card 3

Card 4

Front

What IQ level is considered high intelligence?

Back

Preview of the front of card 4

Card 5

Front

What IQ level is considered to be exceptionally gifted?

Back

Preview of the front of card 5
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