princeton review compared to CC?

<p>i always get a between 530 and 580 on the critical reading section from the princeton review 11 practice (without memorizing the vocab and im international) ,but i did bad on the last practice test ...from the BLUE book.i think im kinda nervous cuz i know that the test from the blue book is the most accurate.
1.) are princeton review and the blue book at the same level?(especially critial reading)
2.)should i finish the tests from PR first then finish the tests from the blue book?</p>

<p>I've taken tests from both PR and BB and imo CR on PR is harder, my score range on CR is also in the 500s range and I need to boost it up by like 100 points by this Saturday. But I would do start doing some tests from the BB to get a more accurate sense of the test, because I've heard some people say that PR isn't accurate.</p>