In an increasingly globalized world, the call for internationally comparable competence measurements has emerged. After several international studies on pre-college education, the focus has shifted to international assessments of vocational education and training (VET). VET researchers in Germany developed a computerbased test (ALUSIM) that measures the competence of German apprentices in internationally defined core commercial areas. Our own study deals with the adaptation of this test to

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... erland and a discussion of the challenges involved, with the aim of providing guidance for future adaptations. More specifically, despite commonalities between the German and Swiss VET systems, it is necessary to examine whether the contents and technical aspects of ALUSIM are appropriate for Swiss conditions in order to ensure validity and evidence based on test content. Methods: Several methods were used to examine the criteria context, construct, and IT components of the German computer-based test ALUSIM in order to successfully adapt it for Swiss commercial VET. To this end we first analyzed and compared the German and Swiss commercial VET systems and commercial curricula (context) to assess whether the tasks of the test were also embedded in the Swiss curriculum and whether any specific Swiss commercial contents were not represented by the test. Second, we interviewed experts in the commercial area to learn more about representative commercial job requirements (construct). Finally, we interviewed apprentices and tested our initial adaptation of ALUSIM to the Swiss context in order to assess the test's IT requirements.