Stephen L. Druker

Teaching Science in Five Countries: Results From the TIMSS 1999 Video Study. Statistical Analysis Report. NCES 2006-011.

James W. Stigler, Kathleen J. Roth, Ronald Gallimore, 2006 .

Students’ reasoning about electricity: combining performance assessments with argumentation analysis

Gregory J. Kelly, G. J. Kelly, Stephen L. Druker, 1998 .