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National IQs Predict Educational Attainment in Math, Reading and Science across 56 Nations
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Lynn, Richard; Mikk, Jaan – Intelligence, 2009
The results of the 2006 PISA (Program for International Student Assessment) study of reading comprehension, mathematical ability, and science understanding administered to 15 year olds in 56 countries [OECD (2007). PISA 2006: Science Competencies for Tomorrow's World. Paris: OECD.] are examined to assess the predictive validity of the national IQs…
Descriptors: Intelligence Quotient, National Norms, Differences, Achievement Tests
The Criterion Validity of Tasks of Basic Cognitive Processes
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Luo, Dasen; Thompson, Lee A.; Detterman, Douglas K. – Intelligence, 2006
The present study evaluated the criterion validity of the aggregated tasks of basic cognitive processes (TBCP). In age groups from 6 to 19 of the Woodcock-Johnson III Cognitive Abilities and Achievement Tests normative sample, the aggregated TBCP, i.e., the processing speed and working memory clusters, correlate with measures of scholastic…
Descriptors: Psychometrics, Structural Equation Models, Predictive Validity, Intelligence
Race, Social Class, and Predictive Bias: An Evaluation using the WISC, WRAT, and Teacher Ratings.
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Svanum, Soren; Bringle, Robert G. – Intelligence, 1982
Interrelationships among IQ, academic achievement, and teacher ratings of pupils' classroom achievement were evaluated in a large sample of children from various racial and socioeconomic backgrounds. A substantial relationship between standardized measures of IQ and achievement was found and was independent of race, but decreased with increasing…
Descriptors: Achievement Tests, Correlation, Elementary Education, Intelligence Quotient