“…Anytime a student stopped writing he or she was prompted once to continue. Brief 5-minute writing tasks have been used extensively in prior writing research (Berninger et al, 1996;Connelly, Dockrell, Walter, & Critten, 2012;Graham et al, 1997;Kent, Wanzek, Petscher, Al Otaiba, & Kim, 2014), including curriculum-based measurement research (Espin et al, 2000), with proven validity (Dockrell, Connelly, Walter, & Critten, 2015;Lembke, Deno, & Hall, 2003). To control for potential prompt effects, half of the classes wrote the essay without planning to the prompt "Do you think teachers should give students homework every days?"…”