I was discussing this with a colleague, who showed some papers on "interactive engagement" in physics education. Another keyword there was "force concept inventory", and the realted (newer) "calculus concept inventory". Any references to good empirical papers?
The following web sites seem to be good starting places:
The "news" link from the Cornell site has a link labeled "Preliminary Project Results (password needed)"
David O. Lomen
Maria K. Robinson
Epstein, "Development and validation of the calculus concept inventory"
Epstein, "The calculus concept inventory -- measurement of the effect of teaching methodology in mathematics," Notices of the AMS 60 (2013) 1018
Pilzer, "Peer instruction in physics and mathematics," Primus XI (2001) 185
Lomen and Robinson, "Using conceptests in single and multivariable calculus"
Thomas and Lozano, "Analyzing calculus concept inventory gains in introductory calculus"
All of these papers can be found online by googling.