@vitamin_water EE? IB was offered at my high school (Texas. . . (ewww)) , so instead of taking AP I took IB.My school offered the IB diploma for full IB students, but I was a partial IB student (took math studies, biology, two years of english, and two years of art for IB). I didn't test in IB to receive college credit because even with partial fee waivers it would have cost a lot of money. I have a twin who also took IB so the cost was pretty much doubled. But it is still worth taking the classes, as they help you prepare for college and help you get into a good school.