“…Among school-related factors, it is argued that teacher qualities make the greatest contribution to students' learning (e.g., Barber and Mourshed, 2007;Organisation for Economic Co-operation and Development, 2012;World Bank, 2018). Teacher characteristics found to be associated with children's learning across different contexts include academic and professional qualification (e.g., Palardy and Rumberger, 2008), teaching experience (e.g., Gerritsen et al, 2017;Ladd and Sorenson, 2017), and teachers' classroom practices (e.g., Glewwe and Kremer, 2006;Kingdon and Aslam, 2011;Azigwe et al, 2016). However, there is continuing debate regarding which teacher characteristics contribute most, singly or jointly, to students' attainment (e.g., Hattie, 2009;Burroughs et al, 2019).…”