The current study aimed to develop a Formative Assessment of Writing (FAoW) instrument through operationalizing Black and Wiliam’s (2009) Formative Assessment (FA) and Hattie and Timperley’s (2007) feedback model. Following intuitive approach of scale construction (Hase & Goldberg, 1967), a comprehensive review of the literature was undertaken, and 30 Likert scale items were devised.  The items...