Possible narrowing of US racial gap The article currently contains the following text and in image Dickens and Flynn write in their 2006 paper Black Americans reduce the racial IQ gap Evidence from standardization samples that blacks have gained five or six IQ points compared to non Hispanic whites between 1972 and 2002 Gains have been fairly uniform across the entire range of black cognitive ability 28 J Philippe Rushton and Arthur R Jensen have disputed Dickens s and Flynn s findings calculating a mean gain for Blacks of zero to 3 44 IQ points and questioned the exclusion of four independent tests that showed low or negative IQ gains 33 However in the very same 2006 study that was criticized by Rushton and Jensen Flynn and Dickens give explicit reasons for why four tests were excluded Rushton and Jensen include in test such as the AFQT which is not strictly an IQ tests and their inclusion of Herrnstein and Murray s AFQT data was criticized by Flynn and Dickens Rushton and Jensen derive the figure of a 3 44 IQ point gain by adding data from four excludes tests to Table A1 while Flynn and Dickens figure of a 5 5 IQ gain for black Americans was derived from Figure 3 in the study 34 1 This is certainly not the final word on this There are lot of things more that can be said about this 2 This subject is already discussed here 3 If the US scores are converging then this may or may not be related to what causes the Flynn effect in other nations As such I see no need for a duplicate discussion of the subject in this article the material should instead be replaced with a brief mention of the controversy together with the link above to the race and intelligence article where possible US score convergence is properly discussed