It is difficult to determine who is a smart person, but it is easy to determine which nation is smartest.
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Q9: It is possible to measure g directly.
Q10: Cohort differences are among the factors that
Q11: Robert Sternberg states that there are three
Q12: It is unfair and scientifically invalid to
Q13: Hundreds of cross-sectional studies of IQ in
Q15: The "Flynn effect" refers to an individual's
Q16: Crystallized intelligence remains steady across adulthood.
Q17: Abstract thinking and speed of thinking are
Q18: In adults, crystallized intelligence tends to increase
Q19: For most people throughout adulthood, both fluid
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