Of those re-testers, it is uncommon that they take the test more than 3 times in a given year. Regarding results, the average increase between tests is 30 points on the total score. It is not unheard of that scores can go down with repeat testing. Your increase will depend on how much preparation you do in between.
Definition of corpus. plural. corpora. play \-p(É-)rÉ\. 1 : the body of a human or animal especially when dead. 2a : the main part or body of a bodily structure or organ the corpus of the uterusb : the main body or corporeal substance of a thing; specifically : the principal of a fund or estate as distinct from income or interest.
ledger. n. 1. (Accounting & Book-keeping) accounting the principal book in which the commercial transactions of a company are recorded. 2. (Physical Geography) a flat horizontal slab of stone. 3. (Architecture) a horizontal scaffold pole fixed to two upright poles for supporting the outer ends of putlogs.