- In learning – used to measure students’ ability, to discover how much they have been learning, to diagnose student’s strengths and weaknesses and to motivate students in learning.
a. periodic quizzes and tests achievement
b. language proficiency
c. placement and diagnostic reasons
- In teaching – means to ensure effective teaching, to improve teaching quality to obtain feedback on student learning
- In research – potentially important role in all basic and applied research related to the nature of language proficiency, language processing, language acquisition, language attrition and language teaching.
