That is true to a point. It would be more accurate to say that maximum possible IQ is a product of inheritance. The actual IQ is a product of several factors, including nutrition and early intellectual stimulation. Children who are not fed animal protein, for example, have lower IQ.
I would expect that middle class black children, being raised with a similar nutritional and intellectual background, would have a similar IQ as middle class white children. Black children in poor neighborhoods do not receive appropriate nutrition, nor do they receive much intellectual stimulation in the black poverty community.
I would expect that middle class black children, being raised with a similar nutritional and intellectual background, would have a similar IQ as middle class white children
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They don’t. Unfortunately.
You would be disappointed as your example omits the genetic contribution to the baseline IQ which you already accepted as part of the equation. Further, you would have to study a large enough sampling of families to avoid cherry picking the data.
Black children in poor neighborhoods are likely in that situation due to low IQ/low achievement parentage. Poor nutrition isn't going to help their situation. Neither is a school environment where classrooms are gang battlezones that no decent teacher will approach. As observed by many teachers, success starts in the home. Bonehead parents aren't going to help a child succeed. Intelligent parents may well help a child succeed in spite of low quality classroom instruction.
Taking the observation a step further, the forced integration by busing and other means was the liberal ideal of "equal" education. It was a tremendous failure. Learning is not an osmotic process. Mixing students of greatly disparate ability results in either 1) holding the classroom back to the lowest common denominator 2) leaving the low performers twisting in the wind to be perennial failures in life. We have had to hear the annual wailing about the "achievement gap" between blacks and whites for the last 50 years. It is the same story every year. The same remedy of "more funding" is demanded. The problem never gets solved because it ignores the reality of the IQ differences between the measured groups.
My solution? Stop trying to fix an unfixable reality. Administer IQ tests and sort the kids by ability. You'll get some of those black kids on the high end of the IQ range into a place where they can be maximally successful. A classroom full of students with similar ability is much easier to handle in the K-12 world. I structured my college courses in a self-paced fashion. The high end students assisted me with the lower performers. In turn, I rewarded the high performers with more challenging instruction in techniques that went well beyond the course requirements.
I’m not picking on you but you still think like a dem
So it's genetic? That's racist! /s