<p>I hate to disagree with the above, but plenty of people who “could” do reasonably well on the IB HL or on similar HS subjects could still do poorly on the SAT or Math Subject Tests. And vice versa for that matter. There is nothing magical about the IB. </p>
<p>People with mathematical and testing aptitudes are expected to do well, and this regardless of their HS curriculum. Others can learn to perform better through practice.</p>