Can ‘reliability’ be used in a practical and useful way in the classroom? We say yes! ACASE associates Panpan Yang, Paul Zachos, and Monica De Tuya will be presenting their research poster at the at the 49th Annual Northeastern Educational Research Association Conference October 17-19, 2018 in Trumbull, CT. The research poster presents and evaluates a new approach to reliability that will allow teachers to obtain quality assessment information that is both practical and useful for supporting daily instructional practice. The research was conducted using our Cubes & Liquids assessment activity.