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Armstrong, Elijah L. and Woodley, Michael A. 2014. The rule-dependence model explains the commonalities between the Flynn effect and IQ gains via retesting. Learning and Individual Differences, Vol. 29, p. 41.
Bakhiet, Salah eldin Farah Attallah Barakat, Serry Mohammed Roshdy and Lynn, Richard 2014. A Flynn effect among deaf boys in Saudi Arabia. Intelligence, Vol. 44, p. 75.
Beaujean, Alexander and Sheng, Yanyan 2014. Assessing the Flynn Effect in the Wechsler Scales. Journal of Individual Differences, Vol. 35, Issue. 2, p. 63.
Sundet, Jon 2014. The Flynn Effect in Families: Studies of Register Data on Norwegian Military Conscripts and Their Families. Journal of Intelligence, Vol. 2, Issue. 3, p. 106.
Batterjee, Adel A. Khaleefa, Omar Ali, Khalil and Lynn, Richard 2013. An increase of intelligence in Saudi Arabia, 1977–2010. Intelligence, Vol. 41, Issue. 2, p. 91.
Meisenberg, Gerhard and Woodley, Michael A. 2013. Are cognitive differences between countries diminishing? Evidence from TIMSS and PISA. Intelligence, Vol. 41, Issue. 6, p. 808.
Rönnlund, Michael Carlstedt, Berit Blomstedt, Yulia Nilsson, Lars-Göran and Weinehall, Lars 2013. Secular trends in cognitive test performance: Swedish conscript data 1970–1993. Intelligence, Vol. 41, Issue. 1, p. 19.
Woodley, Michael A. and Meisenberg, Gerhard 2013. In the Netherlands the anti-Flynn effect is a Jensen effect. Personality and Individual Differences, Vol. 54, Issue. 8, p. 871.
Woodley, Michael A. and Meisenberg, Gerhard 2013. A Jensen effect on dysgenic fertility: An analysis involving the National Longitudinal Survey of Youth. Personality and Individual Differences, Vol. 55, Issue. 3, p. 279.
Al-Shahomee, Alsedig Abdalgadr 2012. A standardisation of the Standard Progressive Matrices for adults in Libya. Personality and Individual Differences, Vol. 53, Issue. 2, p. 142.
Flynn, James R. and Rossi-Casé, Lilia 2012. IQ gains in Argentina between 1964 and 1998. Intelligence, Vol. 40, Issue. 2, p. 145.
Larivée, Serge Sénéchal, Carole and Audy, Pierre 2012. L’« effet Flynn » et ses paradoxes. L’Année psychologique, Vol. 112, Issue. 03, p. 465.
Liu, Jianghong Yang, Hua Li, Linda Chen, Tunong and Lynn, Richard 2012. An increase of intelligence measured by the WPPSI in China, 1984–2006. Intelligence, Vol. 40, Issue. 2, p. 139.
Lynn, Richard and Meisenberg, Gerhard 2010. National IQs calculated and validated for 108 nations. Intelligence, Vol. 38, Issue. 4, p. 353.
Results are reported for mean IQs on the WAIS-R in Sudan in 1987 and 2007. There was a gain of 4·05 Full Scale IQ points over the 20-year period, representing a gain of 2·05 IQ points a decade. The Verbal IQ showed a loss of 1·65 IQ points, while the Performance IQ showed a gain of 7·2 IQ points. These results are broadly consistent with those in economically developed countries in showing that mean IQ on the WAIS-R has increased in Sudan, and the Performance IQ has increased more than the Verbal IQ.
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