I was the product of one of these experiments. The school district I lived in was the result of a redistricting to pull in us white students into a large neighboring nonwhite school.
I can guarantee I didn't improve the educational outcomes for any of my classmates. And all I received from it was random beatings, violent attacks against me, and a subpar education. I did learn something though... Once out, I studied my ass off and work as hard as possible so that neither I nor my children will live through such an experiment again.