Abstract
A concept inventory has been developed for heat transfer, which is typically taken in the junior or senior year in mechanical engineering. The subject builds on material previously introduced in thermodynamics and fluid mechanics, and the concepts in these subjects are intertwined. The course has been given as a pretest in one course. An item analysis of the inventory has been made to assess the validity of the inventory, showing that further work needs to be done. The inventory will be given as a post test and then modifications to the inventory will be made. The current draft inventory is available for testing and evaluating.