Editing The Bell Curve (section)

===APA task force report===
{{Main article|Intelligence: Knowns and Unknowns}}
{{Primary sources|section|date=December 2019}}
In response to the controversy surrounding ''The Bell Curve'', the [[American Psychological Association]]'s Board of Scientific Affairs established a special task force chaired by [[Ulric Neisser]] to publish an investigative report focusing solely on the research presented in the book, not the policy recommendations that it made. The report, "[[Intelligence: Knowns and Unknowns]]", was first released in 1995 and published in ''[[American Psychologist]]'' in 1996.<ref>{{cite journal |last1=Neisser |first1=Ulric |date=1996 |title=Intelligence: Knowns and Unknowns |url=http://www.gifted.uconn.edu/siegle/research/Correlation/Intelligence.pdf |journal=American Psychologist |volume=51 |issue=2 |pages=77–101 |doi=10.1037/0003-066X.51.2.77 |last2=Boodoo |first2=Gwyneth |last3=Bouchard |first3=Thomas J. Jr. |last4=Boykin |first4=A. Wade |last5=Brody |first5=Nathan |last6=Ceci |first6=Stephen J. |last7=Halpern |first7=Diane F. |last8=Loehlin |first8=John C. |last9=Perloff |first9=Robert |last10=Sternberg |first10=Robert J. |last11=Urbina |first11=Susana}}</ref>

Regarding explanations for racial differences, the APA task force stated:

{{blockquote|text=The cause of that differential is not known; it is apparently not due to any simple form of bias in the content or administration of the tests themselves. The [[Flynn effect]] shows that environmental factors can produce differences of at least this magnitude, but that effect is mysterious in its own right. Several culturally based explanations of the Black/White IQ differential have been proposed; some are plausible, but so far none has been conclusively supported. There is even less empirical support for a genetic interpretation. In short, no adequate explanation of the differential between the IQ means of Blacks and Whites is presently available.}}

''American Psychologist'' subsequently published eleven critical responses in January 1997.<ref>{{harvtxt|Alderfer|2003}}</ref>