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本帖最後由 bobbycheung 於 15-8-7 09:32 編輯
Artie 發表於 15-8-6 11:28 
I think it is never a good way to gauge whether a subject is easy by looking at the % of 7.
I was talking about the comparison made as to how many students getting 45 in various schools. Obviously, if you can't get 7 in each of the 6 subjects, there is no chance of getting 45. Hence, my reference to the % of students getting 7 in each subject. If you like, I am gauging how difficult it is to get 45 by looking at the % of students getting 7 in different subjects. So if we compare 2 students both getting 45, on the face of it they both do equally well. However, I would argue that the one taking Biology HL and History HL is a lot harder than the one taking Physics HL and Geography HL. By the same token, when we compare the average score of each school, the likelihood of the students getting a high score in the individual subjects also makes a big difference. Taking Geography HL as an example, the total % of students getting 5, 6 or 7 is 75%. In History HL, however, the total % of students getting 5, 6 or 7 is only 43%. If you compare a school having the majority of its students taking Geography HL and similar "not-as-hard" subjects, its average score is likely to be higher than that of a school having the majority of its students taking History HL and similar "harder" subjects. Of course, we have to take into account all the other subjects taken as well. However, my point is that we just can't take the average score or the perfect score of 45 at its face value. Some are in fact harder to attain than others.
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