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Direct linkKortemeyer, Gerd – Physical Review Special Topics - Physics Education Research, 2014
Item response theory (IRT) becomes an increasingly important tool when analyzing "big data" gathered from online educational venues. However, the mechanism was originally developed in traditional exam settings, and several of its assumptions are infringed upon when deployed in the online realm. For a large-enrollment physics course for…
Descriptors: Item Response Theory, Online Courses, Electronic Learning, Homework
Palazzo, David J.; Lee, Young-Jin; Warnakulasooriya, Rasil; Pritchard, David E. – Physical Review Special Topics - Physics Education Research, 2010
Submissions to an online homework tutor were analyzed to determine whether they were copied. The fraction of copied submissions increased rapidly over the semester, as each weekly deadline approached and for problems later in each assignment. The majority of students, who copied less than 10% of their problems, worked steadily over the three days…
Descriptors: Homework, Duplication, Cheating, Physics
