Thesis is clear. Content is both unified and coherent. Sufficient details are provided to develop thesis clearly. There are few grammatical or mechanical errors. It invites re-reading.
Content is unified and generally coherent.
Key ideas are supported with details. There are few grammatical and mechanical errors. Sentence patterns are sufficiently varied to keep reader interested. Diction is generally concise, accurate, and appropriate to audience and purpose. Content may be ineffectively organized, with weak or missing transitions.