One of the key claims of choice advocates is that it will take diverse schooling options to engage all children in learning. In a school system truly open to new providers of instruction and diverse schooling options, private schools and public schools of choice can vie for customers by trying different subject themes and pedagogies. If a school's…

Many educational researchers have identified issues on classifying schools and some have made use of ad-hoc classification systems in their analyses; however, these solutions are generally one-dimensional, which prohibits them from capturing the full breadth of variation among schools. To understand the amount of variation that exist in schools…