totally different test ressults with GMATPrep and PowerPrep

Expert replies

ocean: Junior | Next Rank: 30 Posts; Posts: 10; Joined: Fri Jan 02, 2009 11:27 am

by ocean » Sun Jan 04, 2009 3:37 am

Some days ago I did a practice test with GMATPrep and scored 710 (13 incorrect math questions and 9 incorrect verbal questions).

Today I scored a 610 at a PowerPrep practice test (11 wrong math questions and 10 wrong verbal ones).

I know there is an unknown algorithm to score the answers but how can it be that 22 wrong questions lead to 710 and 21 wrong questions lead to 610???

Do these results make sense or is there a chance of a "mistake" on the software's side?

regards
ocean

Like this post

Source: Beat The GMAT — GMAT Strategy | Sun Jan 04, 2009 3:37 am

mayonnai5e: Legendary Member; Posts: 1018; Joined: Tue Dec 12, 2006 7:19 pmFollowed by: 6 members; Thanked: 86 times

by mayonnai5e » Sun Jan 04, 2009 5:11 am

I don't think there is a mistake in the software as they have been in use for years by many thousands of students around the world. The cat algorithm determines score based on the difficulty of the questions answered correctly (and incorrectly) so it's entirely possible to get 600 with 21 wrong and 700 with 21 wrong. Also, keep in mind Verbal weighs more than Quant so that extra wrong Verbal question can bring down your score especially if it is a lower rated question (i.e. 400-500 range question). And lastly, PowerPrep is very, very old and is no longer a good indicator of your progress. Defer to GMATPrep instead.

https://www.beatthegmat.com/my-blog-erro ... t4899.html
550 =\ ...560 =\... 650 =) ...570 =( ...540 =*( ...680 =P ... 670 =T ...=T... 650 =T ...700 =) ..690 =) ...710 =D ...GMAT 720 DING!! ;D

Learn more about me

Like this post

VP_Jim: GMAT Instructor; Posts: 1223; Joined: Thu May 01, 2008 3:29 pmFollowed by: 15 members; Location: Los Angeles, CA; Thanked: 185 times

by VP_Jim » Tue Jan 06, 2009 8:19 pm

Agreed. The GMAT Prep software is the best indicator of your ability, so you should rest assured that you're in the 700ish range. After you take the second GMAT Prep test you'll have a better idea, though.

Jim S. | GMAT Instructor | Veritas Prep

Like this post

ocean: Junior | Next Rank: 30 Posts; Posts: 10; Joined: Fri Jan 02, 2009 11:27 am

by ocean » Wed Jan 07, 2009 11:30 am

I wish you were right. Took the second GMATPrep test 2 days ago and scored 690.

Actual GMAT yesterday was 610;(

Fuck it; anyway it's over...

regards

Like this post

Post new topic Post Reply

• Page 1 of 1

GMAT Course Reviews

560 reviews

1168 reviews

431 reviews

359 reviews

147 reviews

5/5

5 Star (560 Reviews)

"Target Test Prep is the closest to the official version of the GMAT exam, about 99% accuracy in terms of the quality and quantity of information. The course has excellently created singular sets of focused lessons and tests for every possible topic that one could come across in the official GMAT exam."

"The TTP course maximizes the efficiency of the time you spend studying. It will take time and effort but I could almost guarantee that if you complete the course exactly as it is laid out you will get an amazing score. They also have a very responsive team willing to help with any questions you might have."

"TTP has two things that I think no other test prep company offers: A teaching approach that reinforces understanding and an attitude that will give you the mental preparedness needed to succeed on the test. TTP gives you a deep understanding of the concept you need to know while teaching you how to think."

Write a Review