“…One especially robust desirable difficulty is the application of tests (also: testing, testing effect, retrieval practice, test-enhanced learning, and learning/ practice tests): Taking (learning) tests on previously studied materials increases long-term learning compared to easier and more passive re-reading tasks or compared to note-taking as a stronger control task-even concerning a multitude of difficult, complex, and curricular subjects in realistic learning contexts (e.g., McDaniel et al, 2007;Dunlosky et al, 2013;Rowland, 2014;Karpicke and Aue, 2015;Adesope et al, 2017;Batsell et al, 2017;Rummer et al, 2017;. These beneficial effects of tests were, among others, found for different types of learning materials (e.g., factual information, vocabulary, conceptual information, longer scientific textbook paragraphs, traditional (live) lectures/lessons, and recorded e-lectures/videopresentations) and for different types of test questions (e.g., multiple-choice questions, short-answer questions, fill-in-theblank questions, comprehension-based questions, applicationbased questions, transfer questions, and inferences; e.g., Roediger and Karpicke, 2006;McDaniel et al, 2011McDaniel et al, , 2013Dunlosky et al, 2013;Rowland, 2014;Khanna, 2015;Jing et al, 2016;Adesope et al, 2017;Iwamoto et al, 2017;Heitmann et al, 2018;Feraco et al, 2020;. Moreover, tests were beneficial in varying (face-to-face or online) settings (e.g., laboratories, universities, classrooms, and at home/outside of class) and for students of different age groups (e.g., elementary school students, high school students, and university students; e.g., McDaniel et al, 2007McDaniel et al, , 2011Roediger et al, 2011;Rowland, 2014;Adesope et al, 2017; Grimaldi andKarpicke, (2014), Feraco et al, (2020), Wang and Tahir, (2020), .…”