Early theorists deduced the presence of a general intelligence g factor from: individual test results with high validity coefficients the poor validity coefficients for the outcomes of individual tests the minimal intercorrelations across assessments of different intellectual talents positive intercorrelations between several intelligence tests
Broad intelligence, also known as the g factor, is a general mental capacity that, according to Spearman, underpins a variety of particular talents, including verbal, spatial, numerical, and mechanical
Three characteristics are shared by reliable tests. They are all standard, genuine, and trustworthy.
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