Calculating Overall score from Quant and Verbal percentiles

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jsl: Master | Next Rank: 500 Posts; Posts: 203; Joined: Wed Jun 04, 2008 1:01 am; Location: Windsor; Thanked: 5 times; GMAT Score:650

by jsl » Fri Jul 11, 2008 12:57 am

Hi all,

Does anyone know if a lookup table exists showing a conversion from Quant and Verbal percentiles to the Overall percentile/score?

Realistically, I think I can get a 75th percentile in Verbal but my Quant score is currently straddling the 55th percentile. I want to see what sort of overall percentile/score I can get if I am able to raise my Quant score to the 75th percentile.

My understanding is that you can just average the 2 scores. Does anyone know how GMAC calculate the overall percentile score? Can someone explain or point me in the right direction?

Huge thanks in advance!
Jon

Source: Beat The GMAT — GMAT Strategy | Fri Jul 11, 2008 12:57 am

VP_Tatiana: GMAT Instructor; Posts: 189; Joined: Thu May 01, 2008 10:55 pmFollowed by: 1 member; Location: Seattle, WA; Thanked: 25 times; GMAT Score:750+

by VP_Tatiana » Fri Jul 11, 2008 6:55 am

The percentiles vary slightly from year to year depending on the test takers. For instance, 750 used to be 99th percentile, but now you have to get 760 to get 99th percentile. However, an approximate conversion chart is published in most test prep books. Out books have the chart in the front of our arguments book.

I know for sure that the overall percentile is not an average of the two percentiles. For instance, I have seen 83 percentile math 99 percentile verbal scale to 99 percentile overall. The chart is your decoder ring; I would be surprised if your materials don't have it.

On a seperate but related note, different raw scores can calculate to the same final score. There's a good thread about it here: https://www.urch.com/forums/gmat/17371-h ... cores.html

Best wishes,

Tatiana

Tatiana Becker | GMAT Instructor | Veritas Prep

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