“Norris and Ortega (2000) distinguished four types of measurement: meta-linguistic judgment (e.g., a grammaticality judgment test); selected response (e.g., multiple choice); constrained constructed response (e.g., gap-filling exercises); free constructed response (e.g., a communicative task)” (Ellis 2008, p. 5). According to Ellis’s Principle 10 that refers to assessing second language proficiency, it is important to measure learners’ proficiency through