<p>I just took a practice test with the Barrons book and I wanted to know how this book compares with the actual test. I thought the MC was okay but the free response grading was a lot harder than I expected it to be. </p>
<p>Thanks!</p>
<p>If you’re unsure about free response, AP Website has all the previous free response questions and grading rubrics. You have to be careful about assumptions and stating everything.</p>
<p>I worked through two free-response sections in that book today. Honestly, I feel its a bit tougher than the AP exam normally is, and if you can do fairly well in the Barron’s book, you’ll do better on the actual AP.</p>
<p>Yea, free-response grading is really weird. Even though it doesn’t say so in the question, you MUST state all assumptions/conditions for any sort of test or confidence interval. Also, you must interpret your answer in terms of the question and whether or not it is statistically significant.
Now that you know how it works, you’ll do better next time.</p>