Perhaps there is some misunderstanding of the phrase ‘developmental editing’ used in this article. Given the number of hours necessary to process, dissect, and reconstruct a text of that size, it sounds like anyone who charged that lowly is doing the job for fun and has a spouse to provide for them–all the while devaluing the work of people who do this for a living. It’s really not ethical.
Developmental editing (may also be called structural or content) – looks at the book’s big picture and overall structure in nonfiction or plot and characters in fiction. Developmental editors may assess a book idea, outline, or early draft to tell authors what works and what could be better. The big picture questions need to be answered first before an editor ensures your words are polished and used correctly.
Hm, I’m a longtime freelance book editor and have a few thoughts to share. I think one page of editing is not enough to gauge much, and that you should be able to get a sample edit of 10 (double-spaced 12-point) pages from a potential editor. You’ll have a better idea after a complete chapter has been edited, and you should have a contract that allows either you or the editor to opt out cleanly at various stages. Another thought: sometimes authors don’t know what level of edit they need, and a good editor can assess this based on reading a few pages of your ms. and spot-checking the remainder. Also: a lot of book editors (like me) work primarily for publishers rather than for individuals. It’s just easier. I know I’ll get paid, I don’t need to educate publisher clients about the process itself, and they send me regular work, so we get to know each other’s needs and preferences. Lastly, I wouldn’t really expect a newcomer editor to be able to handle a booklength manuscript very well (I was that person once — eek). If it’s someone really new, they should have had good training somewhere imo. Book editing is a technical undertaking. It’s also about knowing what to leave alone. Inexperienced people often tamper with authors’ work unnecessarily. Anyhow, I’d be happy to answer any questions.