<p>What's the difference between the two? On which is the curve more forgiving?</p>
<p>The “curve” is more forgiving for the harder one. That way, each test is equally difficult for the test taker.</p>
<p>Bio - M. That is the test for you.</p>
<p>Bio-M has the better curve. The questions are harder, but you either know the answer or you don’t. Bio-E is supposed to be easier with a tougher curve, but in my experience, there are more yes-but, no-but answers (in other words, MC choices that could go either way and be a right or wrong answer, depending on how you see/argue it)</p>