| Summary: | This paper describes the development and validation of a students’ engagement scale in MOOCs discussion forums (EMEF). The first three steps of this process including the development of a preliminary list of items, their review and reduction by experts (n= 14) as well as their cognitive pretesting with three focus groups, ensured the content validity of the scale. The fourth step highlighted acceptable psychometric qualities of the EMEF after analysis of the data collected from 38 learners of 7 MOOCs of the University of Geneva. The exploratory factor analysis (principal axis factor) with Promax rotation performed and the examination of Cronbach’s coefficients confirm the construct validity and internal consistency of the instrument. The resulting scale is short and composed of 16 items divided into four subscales: cognitive engagement, social engagement, behavioural engagement and emotional engagement. The EMEF has proven useful for instructors to revise the instructional design of MOOC forums based on the level of engagement of learners.
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