此处引用官方的说明作为依据:
Your scores on the Verbal Reasoning and Quantitative Reasoning measures depend on your performance on the questions given.
考生的成绩取决于考生在所给定题目中的表现。
The Verbal Reasoning and Quantitative Reasoning measures are section-level adaptive. This means the computer selects the second section of a measure based on your performance on the first. Within each section, all questions contribute equally to the final score. For each of the two measures, a raw score is computed. The raw score is the number of questions you answered correctly.
题目是以Section为单位的自适应的。这意味着计算机依据考生第一个section的表现来选择第二个Section。
在每个Section中,每个题目对最终分数的贡献是一样的(此处的最终分数,应该是指原始分,而非最终经过难度加权计算的标准分)。对于这两种推力测试,首先一个原始分会计算出来,原始分就是答对题目的个数。
The raw score is then converted to a scaled score through a process known as equating. The equating process accounts for minor variations in difficulty from test to test as well as differences in difficulty among individuals’ tests introduced by the section-level adaptation. Thus, a given scaled score reflects the same level of performance regardless of which section was administered and when the test was taken.
原始分再通过一个叫做equating的程序转化成一个标准分。这个equating的程序解释了学生由于参加不同考试和不同的第二个Section所带来的难度上的差异。因此标准分最终展现出了一个学生的能力表现。
我们可以对不同难度的Section对应分数范围有大致的推断:
因此,建议考生在第一个Section尽量将正确的题目个数维持在14个及以上,这样基本能够保证第二个Section进入hard模式,相应的分数也能保证在一个较高的水平。
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