By heck. Delusionism is getting a bit deep here!

Parents want good education for their kids. If enough responsible parents who take an interest in education send their kids to a school it will become a better performer.

The faith bit tends to indicate a school is interested in more than just crowd control and somewhere for kids to be each day.

Faith schools don't do well because of faith, they do well because parents who don't give a flying f don't have kids there.

To say it is something to do with God is laughable. The aim should be to improve all schools, not allow repressed Christians to take their aggression out on innocent children. There is no such thing as a Christian child, just a child with Christian parents.