Delaying access to a problem-skipping option increases effortful practice: Application of an A/B test in large-scale online learning. - Alexander O. Savi; Nienke M. Ruijs; Gunter K. J. Maris; Han L. J. van der Maas (Comput. Educ., 2018)

Learning As It Happens: A Decade of Analyzing and Shaping a Large-Scale Online Learning System. - Matthieu J. S. Brinkhuis; Alexander O. Savi; Abe D. Hofman; Frederik Coomans; Han L. J. van der Maas; Gunter K. J. Maris (J. Learn. Anal., 2018)

Combating effort avoidance in computer adaptive practicing: Does a problem-skipping restriction promote learning? - Alexander O. Savi; Chris van Klaveren; Ilja Cornelisz (Comput. Educ., 2023)