“…Like other types of knowledge, the MKT can be measured directly or indirectly (Kanwar et al, 1990). Examples for direct measures include intellectual and practical tests (e.g., task-based, essay, objective tests, classroom video analysis), and classroom observation instruments (Auletto & Stein, 2020;Gasteiger et al, 2019;Hill et al, 2004;Kersting et al, 2012;König & Kramer, 2016). For indirect measures, self-assessments and questionnaires are utilized in research studies to determine how teachers perceived their MKT (Hill et al, 2005;Mitchell et al, 2014), but their validity can be an issue, particularly with low experienced teachers (Kanwar et al, 1990).…”