I give this test to my honors sophomores, but it can also be used with any level of high school. I consider it moderately difficult. It is comprised of multiple choice, quotation identification, and short and long answer. It requires that students know that Oedipus cursed his sons, that they fought over the throne, and that Polyneices marched with an Argive army on Thebes. Students need to know this background in order to be able to answer a few questions on this test. They will also need to know how the theme of feminism exists in this tragedy; they need to understand hubris and how it is a factor in this play. Please see the preview for example questions.
I have a similarly formatted Oedipus test for sale.