NAEP low income Opportunity gaps in Advanced Performance

If STEM is important the most important 2015 Math Stat would be percent of students scoring at the Advanced Level in grade 8.

As we are inundated with talk about the "Opportunity Gaps" take a look at 4th grade 2015 NAEP math data. In particular the percent of students scoring at the advanced level.

Looking a percent of students eligible for free or reduced meals we find the highest scoring state Minnesota has 5% of those students scoring at the advanced level with 21% of not eligible students scoring at the advanced level.

Here are some of the highest scoring states by percent of students scoring at the advanced level on 4th grade NAEP math and then some others.

percent  advanced FRE eligible - (percent advanced FRE not eligible) - state - sum of both percents
poor - not poor - state
GRADE 4
5% - (21%) - Minnesota - 26%
2% - (24%) - WA DC - 26%
4% - (21%) - Washington - 25%
4% - (20%) - Massachusetts - 24%
2% - (19%) - Texas - 21%
4% - (16%) - Indiana - 20%

3% - (14%) - Kentucky - 17%
2% - (15%) - New Jersey - 17%
2% - (9%) - New York - 11%

2% - (7%) - South Dakota - 9%
2% - (6%) - Arkansas - 8%
the percent of poor at the advanced level is usually less than (1/4) of the percent of those at the advanced level who are not poor.

Is it genes or environment or both that impact the low income student?
Certainly better math programs would help.  It hardly looks that Common Core will not be of much use as it is not an internationally competitive program.  Those students with outside resources will continue to excel while nearly all of those without such resources will not.

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The data for grade 8 math

percent  advanced FRE eligible - (percent advanced FRE not eligible) - state - sum of both percents
poor - not poor - state
GRADE 8
7% - (27%) - Massachusetts - 34%
3% - (23%) - New Jersey - 26%
5% - (18%) - Washington - 23%
4% - (18%) - Minnesota - 22%

3% - (14%) - Indiana - 17%
3% - (13%) - Texas - 16%
1% - (15%) - WA DC - 16%

 2% - (8%) - Arkansas - 10%
 2% - (7%) - South Dakota - 9%

8th Grade Math Advanced Proficiency level.
Massachusetts students from both poor and not poor backgrounds are scoring better than any other state.  Why did not the Feds examine what makes Massachusetts performance superior rather than pushing CCSS-M and associated testing?

I believe the CCSS driver would be Edu-Biz profits.
STEM seems to be about selling stuff to schools.