Hi Yiyang,

Thank you for the post, I think you did a good job describing both formative and summative assessments, and I do agree that both formative and summative evaluations are diagnostic. Formative and summative assessments are always related to each other when instructors grade students. Moreover, I like the idea of “No diagnostic evaluation is correct scientific evaluation.” On the other hand, I think your blog would be more persuasiveif you add more multimedia elements!