There has been a debate at this site about the theoretical cogency of IQ as a measure of individual intelligence, and especially as a mechanism for examining the relative performance of races and nations. Dr Peter J. White, has in recent times, been arguing that the concept of IQ is incoherent, based on logico-mathematical and psychological arguments, extending the work of Flynn. In particular, the ultra-low IQ scores of Australian Aborigines and sub-Saharan Africans, at the imbecile level, call the objectivity of IQ scores into question because on Darwinian grounds, these people would not be able to survive in their environments at all.
That being said, it is likely that there is still a thing “intelligence,” just as there is “fitness” in a health science, but both concepts will be extremely broad. There will be a genetic, environmental and epigenetic basis to this more broad intelligence, although most papers have been based within the conventional IQ paradigm and will need to be rethought: C. A. Rietveld (et al.), “GWAS of 126,559 Individuals Identifies Genetic Variants Associated with Educational Attainment,” Science, vol. 340, 2013, pp. 1467-1471; D. Piffer “Simple Statistical Tools to Detect Signals of Recent Polygenic Selection,” Interdisciplinary Bio Central, (2014) 6:1, 1-6; D. Piffer, “Factor Analysis of Population Allele Frequencies as a Simple, Novel Method of Detecting Signals of Recent Polygenic Selection: The Example of educational Attainment and IQ,” Mankind Quarterly, vol. 54, 2013, pp. 168-184; D. Piffer and E. Kirkegaard, “The Genetic Correlation between Educational Attainment, Intracranial Volume and IQ is Due to Recent Polygenic Selection on General cognitive Ability” Open Behavioral Genetics, at https://openpsych.net/paper/42; G. Davies 9et al.), “Genome-Wide Association Studies Establish that Human Intelligence is Highly Heritable and Polygenic,” Molecular Psychiatry, 2011, pp. 1-10.
A rejection of the adequacy of the conventional concept of IQ does not show that the concept of race or sub-racial groups is also incoherence, and indeed the politically correct were asserting this (race is a social construct, except where affirmative action is involved), long before the foundational critiques addressed by Dr White were made.
For example, Israeli and American scientists have discovered a gene among Ashkenazi Jews that increases their chances of developing schizophrenia, schizoaffective disorder and manic depression: T. Lencz (et al.), “Genome-Wide Association Study Implicates NDST3 in Schizophrenia and Bipolar Disorder,” Nature Communications, 4, Article Number: 2739(2013), doi: 10.1038/ncomms3739. The gene NDST3, increases the probability of Ashkenazi Jews experiencing the mental disorders by approximately 40%, and by 15% in the general population. Such research may suggest better treatments for such psychiatric diseases:
Racial research may help eliminate human suffering.