1. I took the new version of OG (that is, 10 sets of exercises), and the answers to each set were exact scores, but I remember clearly that my previous version of OG was indeed a score segment. Our teacher said that for the formal SAT test, the score is accurate, and this standard was formulated after counting the situation of all candidates. For example, if a SAT question is generally difficult, there may be six grammatical errors, and students who get 8 points in their composition can get the highest score in the score interval, while in another simple exam, candidates may only get lower scores in the score interval, so the interval is fixed, and the specific score depends on the difficulty of the question and the overall answer of the candidates.

2. I don't know if you have found that under the condition that the total score of writing is fixed and the score of composition is known, there may be more than one original score of MC, such as composition 1 1, with a total score of 580, and the corresponding MC may be 29,28; Then refer to the SAT report (the one sent to you by CB), and all you get are scaling scores. At this time, you can use another form to know exactly how many questions your MC has done wrong.