And I do believe that most tests use GE to reflect how an average person in that grade would do on the test. So, for example, a second grader with a GE of 8th grade means that the average 8th grader would score that level ON THE SECOND GRADE TEST.
I don't think so, rather that an average 8th grader would get the same raw score on the test they were given. For an adaptive test, that would tend to blow by second-grade questions pretty quickly. There are also plenty of eighth graders out there who would score perfectly on any arbitrary number of second-grade math questions-- certainly more than 1 in 19 billion.
For that matter, there are plenty of second graders who would too.
