I took the GMAT this past Saturday (September 20th) and received a strange (and improbable, albeit not impossible) quant score on the exam. I received a 31 for my quant score (24th percentile). I also received a 40V (91st percentile) and IR8 (92nd percentile), these were normal and in line with expectations. To put this in perspective I took the actual GMAT two months ago at the end of July and received a 700 (47Q 40V).
Over the past two months I have studied nothing but quant problems practicing an additional 400+ official GMAT questions, with a focus on 600 and 700 level questions. In total I had studied 600+ quant questions (official GMAT questions) with a 73% accuracy for the first time through. When I went back and attempted the problems I had missed (this was my only other attempt at these problems) my accuracy went up to 86%. The average time it took me to answer these problems was 1 minute and 34 seconds.
I have taken a total of 5 practice CATs including a GMAT Prep exam the week before (680 43Q 41V) and never received less than a 41 on the quant section of any CAT (this includes my initial diagnostic). I also took the actual GMAT twice in 2007 for another Masters degree and scored a 46Q and a 42Q on each of those actual exams.
I come from a fairly quantitative background, I double majored in Accounting and Finance, have a Masters of Accounting from a top 5 university, have a CPA and now work in Finance (Private Equity). Test anxiety and nervousness for this test was minimal.
I have found other older posts on GMAT Club discussing weird and uncharacteristic Verbal scores that groups of people seemed to be getting, and I am aware in 2000 or 2001 when the GMAT was administered by ETS, approximately 3% of test takers for a period of time had errors in their scores because the system was logging their answers as unanswered.
Has anyone else who recently sat for the GMAT had uncharacteristic Quant and/or Verbal scores? Or did I really just bomb the section despite all my prep?
At the end of the day I'm still probably okay with my previous score of 700 but I worry that a dip in Quant from 47 to 31 will reflect poorly on me.