I ran an item analysis of the test, and the vocab questions were not the hardest ones on the test. In fact, only three vocab words appeared to cause problems. Most of the commonly missed questions were on details in the book.
Anyway, your scores were posted to Edline, and I took the test out of 43 when there were 45 questions on the test. In my two classes, two students scored 44's, and two students scored 43's.