It's worth pointing out that childhood malnutrition has a significant negative impact on IQ that persists into adulthood.
See: https://pmc.ncbi.nlm.nih.gov/articles/PMC3796166/
Black children are far more likely to live in poverty than the other three groups presented in the parent comment. I'm really curious what the numbers would be were that not the case. I also wonder how much the rise in black IQ over the decades can be attributed to school lunch programs.
For 2023-2024, among SFUSD students who are 'Economically Disadvantaged':
70% of Asian 3rd graders met or exceeded state standards for math.
18% of Black or African American 3rd graders met or exceeded state standards for math.
The difference is similar for all grade levels (3 to 11) and for all years for which I've seen the data.
California provides lunch for all children who attend public schools. SFUSD gives first choice of school to those who live in the very poorest areas of the city.
https://caaspp-elpac.ets.org/caaspp/ViewReportSB?ps=true&lst...
In that data set
Compare 2023–24 Detailed Test Results Results by Ethnicity for Economically Disadvantaged - Asian
with
2023–24 Detailed Test Results Results by Ethnicity for Non Economically Disadvantaged - Black
Comparing poor Asians against non-poor Blacks, the Asians do about 3x better. It's a huge difference.