“…However, studies on random samples of teachers have found limited extent and fidelity in teachers' implementation of professional development programmes focusing this approach to formative assessment, and consequently no impact from the programme on student achievement (Bell, Steinberg, Wiliam, & Wylie, 2008;Randel et al, 2011). In general, attempts to promote formative assessment have frequently been unsuccessful in accomplishing a substantially developed formative assessment practice (Carless, 2005;De Lisle, 2015;Hume & Coll, 2009;James & McCormick, 2009;Marshall & Drummond, 2006;Schneider & Randel, 2010;Wylie & Lyon, 2015), to the extent that increased student achievement was obtained (Bell et al, 2008;Carless, 2005;Jönsson, Lundahl, & Holmgren, 2015;Randel et al, 2011;Schneider & Randel, 2010).…”