讀懂 CIE 如何分檔Grade Threshold

今天MathsUp就帶大家一起來讀懂Grade Threshold Table，什么是component，這么多A,B,C,D,E, 還有一堆看似和自己有關，又看似無關的數字

How do we set grade thresholds?

（可惡的CIE到底是如何設置分檔最低分數線的？）

A grade threshold is the minimum number of marks that a candidate needs to obtain a particular grade in a paper or in a subject.

簡單來說，grade threshold就是各位在各科上拿各個檔次的最低要求分數線

These thresholds are decided after each examination has been taken and marked. The aim in each year (or examination series) is to set each threshold in just the right place to ensure that it is no more difficult and no less difficult to obtain that grade than it was in the previous year.

很顯然，這個分數線是在大家的卷子批改后所設定的，目的是為了保證大家今年拿到同樣檔次的難易度與往年是保持一致的。

To fulfil that aim we have to lower the thresholds from one examination to another if we find that the questions in a paper have been more difficult than last time (or raise the thresholds if we find the questions have been easier). This is to be fair to candidates from one series to another.

如果說今年的卷子有點惡心了，那這個最低分數線就會降低些，也就是容錯率高。

但是，如果說今年的卷子有點心里偷著樂了，那這個最低分數線就會升高，容錯率就會降低。

為啥這樣子呢？！公平啊！因為，全球區域不同，大家做的同一學科的卷子也是不一樣的，所以當然要調整分數線為保證公平，懂了嗎？ 所以說，不管往年拿A 多少分，你要做的就是拿出摘A*的努力和勤奮。

How to interpret our grade threshold tables

（如何理解我們的分檔表）

The table in the grade threshold document shows the thresholds taken in a particular examination series for each paper or other component that we marked (so not for teacher-marked components, for example).

首先，這張可愛的表格包含了考試系列中所有的卷子，每個區域使用的component會有不同

The table also shows the thresholds used for the options available. An option is a permitted combination of papers or other components that make up the overall qualification. In the simplest cases, we can just add up the component thresholds to get the option threshold.

另外， 這張表格還包括一些組合卷的學科，比如IGCSE ADDITIONAL MATHS 兩卷， ALEVEL MATHS 9709 四卷，都是組合卷，這些組合卷的最終成績將會是被用來分檔的。

其中，有的組合卷只是簡單的把各個小卷分數相加，用得到的總分分檔。

而有的組合卷則是使用了權重比例，如剛剛提到的9709 數學，四卷各占一定的比例，最后才是大家alevel的數學成績。

OMG!CIE 好煩??！就不能一心一意好好考數學嗎？

Grade A* does not exist as a component grade. The A* threshold at option level is calculated looking at the position of the A and B thresholds as a starting point.

如果是組合卷，每一個component不存在A*哦，但是組合卷最終會有A*檔，而且這個檔次是參考A 檔和B 檔的分數哦

For AS Level components, small adjustments may be made to the marks awarded for some versions of the paper, and to the component thresholds, in order to neutralise any differences in the difficulty of the versions taken in different countries, and so make sure that all candidates face an equal demand.

針對AS 階段的，對于一些版本的卷子，分數上可能會有小小的調整，目的還是為了公平和差異性。