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Direct linkLynn, Richard – Intelligence, 2010
Beraldo (2010) and Cornoldi, Belacchi, Giofre, Martini, and Tressoldi (2010) (CBGMT) have eight criticisms of my paper (Lynn, 2010) claiming that the large north-south differences in per capita income in Italy are attributable to differences in the average levels of intelligence in the populations. CBGMT give results for seven data sets for IQs in…
Descriptors: Intelligence, Income, Criticism, Foreign Countries
Peer reviewedFlynn, James R. – Journal of Educational Measurement, 1984
Thorndike's Stanford-Binet data suggest that from 1932 to 1971-72 preschool children enjoyed greater IQ gains than older children, possibly due to the rise of television. Additional analysis indicated that gains were either due to sampling error or totally antedated 1947. Gains of 12 IQ points were found for Americans. (Author/EGS)
Descriptors: Achievement Gains, Age Differences, Intelligence Differences, Intelligence Quotient
Peer reviewedSimons, Marc R.; Goh, David S. – Perceptual and Motor Skills, 1982
Correlations between McCarthy Scales of Children's Abilities and teachers' ratings of academic achievement were investigated. McCarthy Scales are useful in predicting achievement of normal children, but further research is needed with learning disabled students. Use of teachers' rating scales with low functioning children is discussed in light of…
Descriptors: Academic Achievement, Correlation, Elementary School Teachers, Intelligence Differences
Download full textReynolds, Cecil R.; Hartlage, Lawrence C. – 1978
Regression lines for the prediction of Wide Range Achievement Test (WRAT) scores by Wechsler Intelligence Scale for Children (WISC) and WISC Revised (WISC-R) intelligence quotients were compared across race, by the Potoff technique. Subjects were 36 black and 30 white children who were referred for psychological evaluation because of learning or…
Descriptors: Academic Achievement, Achievement Tests, Black Students, Comparative Testing
