MOOC Monetization Changes and Completion Rates: Are Learners from Countries of Different Development Status Equally Affected? - Sa'ar Karp Gershon; José A. Ruipérez-Valiente; Giora Alexandron (EMOOCs, 2021)

The effects of assessment design on academic dishonesty, learner engagement, and certification rates in MOOCs. - Giora Alexandron; Mary Ellen Wiltrout; Aviram Berg; Sa'ar Karp Gershon; José A. Ruipérez-Valiente (J. Comput. Assist. Learn., 2023)

An evaluation of assessment stability in a massive open online course using item response theory. - Sa'ar Karp Gershon; Ella Anghel; Giora Alexandron (Educ. Inf. Technol., 2024)