Research Question 1: Does the dynamic written corrective feedback affect two different groups of learners (English major vs. non-English major) in short-and long term periods when they are exposed to a full range of assessment criteria?Research question 2: How do students make meaning from the revision process across the time of instruction?Research Question 3. Among five significant errors that students made, which errors survived at the end of the semester?Research Question 4. Among five genres of writing, which errors are salient?Research Question 5. Are there similarities or differences among the five genres of students' writings?Research question 6. What are the indicators differentiating opinion and narrative paragraphs?