What test # in EK did you do worse on? They are definitely not all equal.
I have a theory about EK VR 101... it goes a little like this. The first two tests THEY make hard so you score lower and then the next couple get easier and your score goes up... they the difficulty goes back up and so on. I think it's so you take the first couple and say "oh ****, I really need to practice" and then do more... as you start to see "improvements" it's just that the tests are getting easier. I don't know, maybe it's the conspiracy theorist in me coming out but I can say that the passages from exams 3 and 4 were much simpler to understand than the ones in the first two tests, at least in my opinion. I may have shot a hole in my own theory though because my last practice was significantly lower than my last few...
test 1 = 7
test 2= 8
test 3= 10
test 4= 11
test 5= 9
I thought the passages in test 5 were very hard to follow, but maybe I just wasn't in to it. I took it at the end of a 8 hr Physics study day so I might have been a little burnt out at the time... not sure.