J. Flynn

Publications194
h-index32
Citations7,694
Highly Influential Citations638
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Massive IQ gains in 14 nations: What IQ tests really measure.
Data from 14 nations reveal IQ gains ranging from 5 to 25 points in a single generation. Some of the largest gains occur on culturally reduced tests and tests of fluid intelligence. The Norwegian…
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The mean IQ of Americans: Massive gains 1932 to 1978.
This study shows that every Stanford-Binet and Wechsler standardization sample from 1932 to 1978 established norms of a higher standard than its predecessor. The obvious interpretation of this…
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Intelligence: new findings and theoretical developments.
TLDR
The relationship between working memory and intelligence, the apparent contradiction between strong heritability effects on IQ, whether a general intelligence factor could arise from initially largely independent cognitive skills, the relation between self-regulation and Cognitive skills, and the effects of stress on intelligence are reported.
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What is intelligence ? Beyond the Flynn effect
Around their 18th birthday, basically all Dutch males born between 1934 and 1964 unknowingly took part in a study of the malleability of intelligence. When these young men appeared before the Dutch…
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Heritability estimates versus large environmental effects: the IQ paradox resolved.
TLDR
The authors present a formal model of the process determining IQ in which people's IQs are affected by both environment and genes, but in which their environments are matched to their IQs.
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Searching for justice: The discovery of IQ gains over time.
Humane-egalitarian ideals, whose aims are group justice and reducing environmental inequality and privilege, must be tested against reality, as revealed by psychology and other social sciences. Four…
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"Massive IQ gains in 14 nations: What IQ tests really measure": Correction to Flynn.
Data from 14 nations reveal IQ gains ranging from 5 to 25 points in a single generation. Some of the largest gains occur on culturally reduced tests and tests of fluid intelligence. The Norwegian…
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The WAIS-III and WAIS-IV: Daubert Motions Favor the Certainly False over the Approximately True
  • J. Flynn
  • Psychology
    Applied neuropsychology
  • 29 May 2009
TLDR
A new estimate of the extent to which the WAIS-III inflated IQs, even at the time it was normed, yields 1.65 points rather than 2.34 points; two new studies comparing the WAis-III to the Woodcock-Johnson III and the Kaufman Adolescent and Adult Intelligence Scale give huge estimates.
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Requiem for nutrition as the cause of IQ gains: Raven's gains in Britain 1938-2008.
  • J. Flynn
  • Economics
    Economics and human biology
  • 1 March 2009
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What Is Intelligence
TLDR
The U.S. intelligence community is a relatively recent government phenomenon that has been the subject of much ambivalence and some citizens have difficulty reconciling American ideals and goals with the realities of intelligence.
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