“…Various methods are used for self-evaluation, such as questionnaires, rating systems, daily journals, and portfolios (Struyk and McCoy 1993). The design of our selfevaluation tool was based on the 45 competencies for museum guides in art museums and history museums, which we defined in a previous study of this project (Schep, Van Boxtel, and Noordegraaf 2018). The self-evaluation consists of 45 competencies, organized into four areas of competence: (a) handling the group within the museum environment, (b) communication skills, (c) knowledge and pedagogy, and (d) professionalism.…”