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the ability to direct one's thinking, adapt to one's circumstances, and learn from ones experiences
a statistic obtained by dividing a person's mental age by the person's physical age and then multiplying the quotient by 100
a statistic obtained by dividing a person's test score by the average test score of people in the same age group and then multiplying the quotient by 100
a statistical technique hat explains a large number of correlations in terms of a small number of underlying factors
Two-factor theory of intelligence
Spearman's theory suggesting that every task requires a combination of a general ability (which he galled g) and skills that are specific to the task (which he called s)
the ability to retain and use knowledge that was acquired through experience
the ability to reason about emotions and to use emotions to enhance reasoning
Fraternal twins (also called dizygtic twins)
twins who develop from two different eggs that were fertilized by two different sperm
Identical twins (also called monozygotic twins)
twins who develop from splitting of a single egg that was fertilized by a single sperm
a statistic (commonly denoted as h²) that describes the proportion of the difference between people's scores that can be explained by differences in their genes
those environmental factors that are experienced by all relevant members of a household
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