Some sentences are awkwardly constructed, and they represent an occasional distraction for the reader. Errors in sentence structure are frequent enough to represent a major distraction to the reader. Word Choice Word choice is consistently precise. Word choice is generally good. The writer goes beyond the generic word to find one more precise and effective.
Word choice is merely adequate, and the range of words is limited.
Some words are used inappropriately. Many words are used inappropriately, confusing the reader. The writing is free or almost free of errors. There are occasional violations in the writing, but they don't represent a major distraction or obscure the meaning. The writing has numerous errors, and the reader is distracted by them.