Well, remember, both lexile and gle scoring are about analyzing the vocabulary used and the structure of sentence/paragraph formation. Not anything about the subject matter or interest level. So, Da Vinci Code has a gle of 5.2 and a lexile of 850L but an interest level of grades 9-12 ( http://www.scholastic.com/teachers/book/da-vi... ). An on-level 5th grader should be able to understand the book, but that doesn't mean they'd want to.<quoted text>
AS I read that book, I thought, "you're using that adjective yet again?"
To compare, Harry Potter and the Sorcerer's Stone has a gle of 5.5 and a lexile of 880L ( http://www.scholastic.com/teachers/book/harry... ) but an interest level of 4-8. So, simply comparing reading levels, the first Harry Potter is a slightly more complex book than the Da Vinci Code ;)