[clncy]

It sounds like a plausible mechanism by which students in poverty experience poorer academic results though, even if it's not the only mechanism.

[teaman2000]

I guess the question to ask is: if you gave the kids a desk and a room of their own by itself, would academic performance improve? Or would academic performance improve more if you raised the parents out of poverty?

[dTal]

One plausible mechanism out of thousands. The trouble is that it was a plausible mechanism before the study too. What have we gained?