Enhancing the Experience Application Program Interface (XAPI) to Improve Domain Competency Modeling for Adaptive Instruction
Robert Sottilare, Rodney Long, and Benjamin Goldberg
This paper describes methods for enhancing the experience application program interface (XAPI) to improve the assessment of domain competency modeling for adaptive instruction. XAPI is an e-learning software specification which allows individual learning experiences and achievements to be amassed in a Learning Record Store (LRS). Adaptive instruction includes tailored training or educational experiences usually delivered and guided by Intelligent Tutoring Systems (ITSs). ITSs can more effectively tailor or adapt instruction when they have more accurate models of the learner’s prior knowledge or competency. This paper examines the potential effect of methods to more accurately model learner experiences and domain competency in an LRS. Specifically, we recommend five methods to improve XAPI statements by modeling: 1) achievement types; 2) experience duration; 3) experience source information; 4) modeling domain learning and forgetting; and 5) documenting assessment within learning experiences.