Writing is not strong enough to make train of thought easily understood, but reader can figure out what writer probably intends. Paper is well written, logical, organized. Reader can follow line of reasoning. Enough mechanical errors are present to be distracting to the reader. The number of mechanical errors present is within tolerable limits.
Writing is free or almost free of mechanical errors.
Reader learns little from the paper or acquires misinformation. Paper is written for the intended audience. Educators who are not assessment experts learn from the author's expertise. In the final paper you should address a need in your own professional life related to assessment. The paper should consist of a practical application of the concepts considered in the course.