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Its practice questions were right on in level of difficulty. Questions in other resources were too easy or too hard. Several only provided limited practice questions.
Our daughter scored in the 99th percentile. While we think she would have done well anyway, the Peterson materials boosted her score a good deal, we are convinced.
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"The algorithm will not select the same question twice because it has been set not to do so. Even if the same essay is presented, a slight difference in nuance in the question still makes the test practicable, because ignoring the nuance will affect the correct answer and therefore the level at which is the next question is drawn from the database. The algorithm has been strenuously tested, so that confidence is there that it will produce what it was designed to produce, viz., an adaptive test that will test how well a question is interpreted by the test-taker in order to apply the relevant principles to produce a correct answer."
This answer is a great one, but it just isn't true. I took the third test(I have had a major problem with the second one) and 90% of the questions were identical. I did it with my eyes closed and the results below will show you what I mean. On the first test, I got VERBAL-746, QUANTITATIVE-800 and ANALYTICAL-750. On the third test I got VERBAL-800, QUANTITATIVE-800, ANALYTICAL-800. I am good, but not that good. My actual score is somewhere around the 1900-2000 range. On top of that, there is no way you can review the questions and answers to see where you went wrong. Not that I need to, especially with the third test. ALL OF THE QUESTIONS IN THE DIAGNOSTIC TEST ARE REPEATED ON ALL OF THE CAT's. My problems lie in the Analytical section. I just can't get my head around those questions. Therefore, I skipped the other sections and headed straight for the aforementioned. You guessed it, I was extremely disappointed. There are "11 pages, that's right, ELEVEN" alloted to the analytical part of the test. 238 pages are devoted to Quantitative and Verbal (combined, not 238 pages each), but you get barely anything for a section you should be able to get 800 on if you pratice enough and the strategies that you pick up from books like these are good. The only helpful feature is the support staff, who get back to you promptly. The verbal and the quantitative section (strategies, examples, solutions and explanations) are comprehensive, but the entire package is not worth it. Spend your money on Kaplan or ETS Powerprep. I am going to ask for my money back for this one, if I can.
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