A lot of that has to do with who your kid goes to school with. If we take equally funded schools (in WA that’s easy since education is primarily funded by the state), the results are still different: districts with richer families do better probably because they get more support at home, but even lower income students do better since they feel like they need to keep up with their classmates.

Heritable doesn't mean genetic. Language and money are heritable.

> Summary: It's not genetics.

No one said its genetics. They're saying its not only funding.

that is poor evidence for a school funding effect, but yes - environment is important. i will say that this is the first time i've ever seen MTO cited as a positive example of the impact, my understanding (not very informed) was that it is considered a negative result.

i wish these analyses were pre-registered, but i recognize that is difficult to do for very long timespan studies like this