Usage Analysis in Tutors for C++ Programming

We have developed and deployed several web-based tutors for C++ programming concepts. We have been remotely collecting usage data from these tutors, and analyzing them for the benefit of the students, the teachers and ourselves. In this paper, we will describe the tutors, the types of data collected, and the types of analysis we perform on the data for the benefit of the various constituencies : students, instructors and the designers of problems . Since we use learning objectives ontology to model the domain, student, and adaptive problem generation in our tutors, our analysis of usage is also in terms of learning objectives. We will illu strate with examples that usage analysis in terms of learning objectives yields results readily usable by students, instructors and the designers of problems.