Yes, you're probably right. I'm just always stumped by the part where you can't try a dry-run in educational theory- you actually have to try it out, and you run the risk of screwing up a kid's education.
Seems easier than the situation in medicine. I have fewer moral qualms about testing experimental educational techniques on students than I do about testing experimental medicine on patients, especially if the students (or the students' parents) are compensated by an amount that make them willing subjects.
