Is this study accurate?

submitted by SoylentCapitalist from self.debatealtright

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[–]SoylentCapitalist[S] 1 insightful - 1 fun1 insightful - 0 fun2 insightful - 1 fun -  (5 children)

I really don't see what more we need to add to Jensen's explanation: adolescents have not fully developed yet, and the US Forces are not an accurate sampling of African Americans, with the bottom 30% excluded.

I suppose you're right but even Jensen suggests heterosis was a contributing factor. Also, this was only for the US, 80% of the mixed race fathers in the study were French Africans, so if France also had a minimum or was even testing IQ during WW2, what was it?

Finally, Jensen suggests that heterosis may have enhanced the IQ level of the mixed race children in the study.

[–][deleted]  (4 children)

[deleted]

    [–]SoylentCapitalist[S] 1 insightful - 1 fun1 insightful - 0 fun2 insightful - 1 fun -  (3 children)

    I have never seen a study to actually indicate such an effect for IQ

    Well, as for this study supporting it, if we account for the 80% being French where conscription is mandatory, your argument doesn't explain an entire 7 IQ points higher than where it would be expected. I'd have to do the exact math, but it seems unlikely the bottom 30% of only 20% of the sample being removed would cause such an increase in of itself.

    [–][deleted]  (2 children)

    [deleted]

      [–]SoylentCapitalist[S] 1 insightful - 1 fun1 insightful - 0 fun2 insightful - 1 fun -  (1 child)

      The white boys IQ is the same as white adults IQ.