I took an official GMAT for the first time in September. I scored 640 overall, 42Q and 37V. I was disappointed with this test score since I scored higher on Official practice exams, Manhattan practice exams, and Kaplan Exams.
So I took a Knewton course before retaking the test. The verbal section has always been my strongest section, and I have consistently performed well on the Verbal section. In the Knewton practice tests I scored, 44, 40, 35, 38 and 40 on the verbal section of five different tests.
I took my second official GMAT test today and received a 27 on the Verbal section based on the unofficial GMAT score report. I did not notice anything unusual when I was taking the exam, and finished all the questions as usual. This Verbal score of 27 is a definite outlier; on all other practice tests (both Official practice tests, Manhattan practice tests, Kaplan practice tests, and 5 Knewton practice tests) I scored significantly higher. My score on the first official GMAT test was also significantly higher.
Is it possible there was an error when my test was scored? Has anyone experienced anything similar? Does anyone have any suggestions of action to take?