[alexander_busek]

The study found that receiving a private, faith-based education increased political tolerance and knowledge by 12 percent of a standard deviation.

I trust that the study did not fail to control for such other factors as race.

I namely suspect that the racial make-up of faith-based educational institutions is radically different from that of public schools.

Regards,

[Svartalfiar]

12% of a single standard deviation isn’t that big of a difference..