Homeschooling

[sanantone]

This study appears to be controlled for homeschool parent teacher certification, state homeschool regulation (low regulation vs. high regulation), education level of homeschooling parents, family income, money spent on education, and child gender. It stated that the vast majority of the participants in the study were married (97.9%), and 19.4% of the homeschooling mothers worked. You can see the details of the report in the link I provided earlier, if you care to dig deeper. (I have seen another study that measured achievement vs. ethnicity, and the achievement gap was not comparable to the wide gap in public schools.)

I did read the details. They gave the demographics for the homeschoolers, but not the public school attendants they compared them to. The demographics of the homeschoolers are far from matching the demographics of the general population, so they would have to do something like propensity score matching to get a good sample from public schools since random assignment is not an option.