Which is the stronger correlate of school learning? Time to learn or measured intelligence?

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Time to learn (TTL; measured by the number of trials to criterion on single units of material from 6 academic areas) and intelligence (measured by the Lorge-Thorndike Intelligence Test) were correlated with each other and with school achievement (measured by standardized test scores) in a study of 153 4th, 5th, and 6th graders. TTL was a strong correlate of school achievement (.85-.89). Correlations were lower between TTL and IQ (.50-.69) and between IQ and achievement (.59-76). It is concluded that TTL is a stronger correlate of school learning than IQ is. TTL is discussed as a tool for teachers who design individual instruction and as potentially the fairest measure of school performance available at the present time. (15 ref) (PsycINFO Database Record (c) 2006 APA, all rights reserved)

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