Arthur and the Popularity Test, Book 12 by Marc Brown

When the gang takes a popularity test in a magazine for teenage girls, something strange happens to Fern and Sue Ellen. Fern, usually quiet, suddenly turns aggressive, while Sue Ellen, typically so good at everything, starts to falter in all she attempts. Will the changes make the girls more likable, as they think? Or will their friends long for the old Fern and Sue Ellen to return? In chapter-book format, for children who are ready to read on their own, this thought-provoking tale will surely be a hit among Arthur fans.