"If they're cooking the books AND they're still achieving a lower cost ratio per student AND their academic success rate is higher than in a generic public school ... they're doing a much better job than comparable public schools!:
This is not a fair comparison. They have a better academic success rate because they are running a defacto private school on PUBLIC TAX DOLLARS! Public schools have to take everybody, whereas charter/private schools filter out those with learning disabilities. Kids with learning disabilities, behavioral problems what have you cost more to educate as they require special services; charter schools don't offer special services, hence the artificially lower cost per student ratio.
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