Originally posted by Tharg
Nope. Comprende. Whoosh.
I would have the need of reading comprehension in order to fully understand what you were trying to illustrate. Writing comprehension would entail the ability to comprehend what one is writing, and thus, what one is trying to convey in the context that another, or others, would have sufficient reading comprehension to understand wit forth. The crux of writing comprehension is that one understands the audience to whom one is writing and thus, writes accordingly.
http://www.google.com/search?hl=en&q=reading+comprehension&btnG=Google+Search