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selection bias? Is KA randomly selecting these schools for their trials? Or is it a convenience sample? In that case the schools that elect to work with KA are
by hokua 15y ago
selection bias? Is KA randomly selecting these schools for their trials? Or is it a convenience sample? In that case the schools that elect to work with KA are not likely to be typical American schools.
- nickik 15y agoAtm the schools come to KA not the other way around and KA itself does sommerschools. Here you'll find all you need: http://www.khanacademy.org/#khan-academy-related-talks-and-interviews http://www.khanacademy.org/#khan-academy-related-talks-and-i...
- gujk 15y agoThey are still a subset of American schools.. if KA wins an A/B test wiher both A and B are at those schools, it is still a win. But the control had better be the same school!