TY - JOUR AU - J. Michael Spector AU - ChanMin Kim TI - A Model-based Approach for Assessment and Motivation JO - Computer Science and Information Systems PY - 2012 VL - 9 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/CSIS_2012_9_2_a18/ ID - CSIS_2012_9_2_a18 ER -