Greetings!
Yes, you did a very good job with the MLA! There is only one tiny error I see, and that is that you don't include the period from the quotation inside the quotation itself; the period at the end of the sentence, after the page number, is sufficient. Also, leave a space between the quotation mark and the parenthesis; so, it would look like this:
In Defense of Testing by Diane Ravitch states that, "The tests widely used today often rely too much on multiple-choice questions, which encourage guessing rather than thinking" (798).
Good work!
Thanks,
Sarah, EssayForum.com
Sarah, EssayForum.com