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The heritability of intelligence is lowest among genetically


A) similar individuals who have been raised in similar environments.
B) dissimilar individuals who have been raised in similar environments.
C) similar individuals who have been raised in dissimilar environments.
D) dissimilar individuals who have been raised in dissimilar environments.

E) C) and D)
F) A) and B)

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Males are most likely to outnumber females in a class designed for high school students highly gifted in


A) reading.
B) speech.
C) math problem solving.
D) a foreign language.

E) B) and C)
F) A) and D)

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An intelligence test score of 70 or below and difficulty adapting to the normal demands of life is most clearly an indication of


A) savant syndrome.
B) the Flynn effect.
C) Down syndrome.
D) intellectual disability.

E) B) and D)
F) C) and D)

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Research indicates that Head Start programs


A) contribute to dramatic and enduring gains in the participants' intelligence test scores.
B) yield the greatest benefits for participants coming from intellectually stimulating home environments.
C) reduce the likelihood that participants will repeat grades or require special education.
D) achieve all of these results.

E) A) and B)
F) None of the above

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The characteristics of savant syndrome most directly suggest that intelligence is


A) a diverse set of distinct abilities.
B) largely unpredictable and unmeasurable.
C) a culturally constructed concept.
D) dependent upon the speed of cognitive processing.

E) A) and D)
F) B) and D)

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When retested on the WAIS,people's second scores generally match their first scores quite closely. This indicates that the test has a high degree of


A) reliability.
B) content validity.
C) heritability.
D) predictive validity.

E) B) and D)
F) A) and B)

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You would not use a test of hearing acuity as an intelligence test because it would lack


A) content reliability.
B) predictive reliability.
C) predictive validity.
D) content validity.

E) B) and D)
F) B) and C)

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Experts would most likely agree that intelligence is a(n)


A) inborn ability to perform well on standard intelligence tests.
B) mental ability to learn from experience.
C) general trait that underlies success on nearly any task.
D) multiple array of completely independent adaptive traits.

E) B) and C)
F) All of the above

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Which of the following observations provides the best evidence that intelligence test scores are influenced by heredity?


A) Japanese children have higher average intelligence scores than do American children.
B) Fraternal twins are more similar in their intelligence scores than are ordinary siblings.
C) The intelligence scores of children are positively correlated with the intelligence scores of their parents.
D) Identical twins reared separately are more similar in their intelligence scores than fraternal twins reared together.

E) C) and D)
F) A) and C)

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Reported racial gaps in average intelligence scores are most likely attributable to


A) the use of biased tests of intelligence.
B) the use of unreliable tests of intelligence.
C) genetic factors.
D) environmental factors.

E) None of the above
F) C) and D)

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If a test assesses a representative sample of the behavior it is intended to assess,the test is said to have


A) reliability.
B) heritability.
C) content validity.
D) a normal distribution.

E) All of the above
F) B) and C)

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To assess mental age,Binet and Simon measured children's


A) head size.
B) reasoning skills.
C) muscular power.
D) emotional intelligence.

E) A) and B)
F) C) and D)

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Sweden and Iceland exhibit little of the gender gap in mathematical abilities found in Turkey and Korea. This best illustrates that mental abilities are


A) polygenetic.
B) extrinsic motivators.
C) socially influenced.
D) distributed in a bell-shaped pattern.

E) B) and D)
F) C) and D)

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A test that measures or predicts what it is supposed to is said to have a high degree of


A) validity.
B) standardization.
C) reliability.
D) the g factor.

E) None of the above
F) A) and C)

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Melvin has been diagnosed as having savant syndrome,which means that he


A) has an IQ of 120 or higher.
B) would score high on a test of analytical intelligence.
C) is limited in mental ability but has one exceptional ability.
D) was exposed to high levels of testosterone during prenatal development.

E) A) and B)
F) All of the above

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Babies in an Iranian orphanage suffered delayed intellectual development due to


A) critical periods.
B) telegraphic speech.
C) a deprived environment.
D) savant syndrome.

E) A) and B)
F) B) and C)

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Robert Sternberg distinguished among analytical,practical,and ________ intelligence.


A) intrapersonal
B) creative
C) spatial
D) musical

E) A) and B)
F) None of the above

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A classmate makes the following claim: "Despite numerous federally funded Head Start programs and nationwide efforts to desegregate public schools,Blacks continue to lag behind their White counterparts in intelligence and academic achievement. Clearly,Black Americans must be genetically inferior to White Americans." Use research evidence and logical arguments to intelligently refute your classmate's statement.

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Studies of adopted children and their biological and adoptive families demonstrate that with age,genetic influences on intelligence


A) become more apparent.
B) become less apparent.
C) become more difficult to disentangle from environmental influences.
D) become easier to disentangle from environmental influences.

E) A) and C)
F) A) and D)

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Sasha demonstrates a mild level of intellectual disability. She has achieved the equivalent of a fifth-grade education and will soon begin vocational training so that she can earn a living. Sasha's intelligence score is most likely between


A) 5 and 19.
B) 20 and 34.
C) 35 and 49.
D) 50 and 70.

E) B) and C)
F) A) and D)

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