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Module 31

Genetic and Environmental Influences on Intelligence

QuestionAnswer
What is heritability? the proportion of variation among individuals that can be attributed to genes
What is stereotype threat? the phenomenon in which a person's concern that he or she will be evaluated based on a negative stereotype is actually followed by lower performance
Whose intelligence scores are more similar: fraternal twins reared together or identical twins reared apart? identical twins reared apart
True or False: The gender gap in math and science scores is increasing. False
What do most psychologists believe cause racial gaps in test scores? environmental factors
What does it mean to say that the heritability of a trait is approximately 50 percent? it means that of the variation in the trait within a group of people, 50 percent can be attributed to heredity
What does it mean to say that intelligence is influenced by many genes? it is polygenic
Most psychologists agree that, in terms of predictive validity, the major aptitude tests _________ racially biased. are not
The gap in intelligence scores between Black and White children is _______________________. not increasing
The variation in intelligence scores ________ a racial group is much larger than that _________ racial groups. within; between
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