各位G友, 我是新人. 现在准备备考GRE, 下载了一本PDF<The Official Guide to the GRE revised General Test, 2nd Edition>, 读完ETS对这个考试的一些介绍之后有两个地方不太明白, 下面我分别把PDF中的原文以及我自己的疑问说出来, 希望各位前辈可以帮我解疑.|
1. 在The Computer-based GRE revised General Test---Typical Test Structure这一节, 有个表格:
Measure | Number of Questions | Allotted Time
Unscored*(Position varies) | Varies|Varies
Research**(At the end of the test) | Varies | Varies
然后是对Unscored 和 Research这两种题的说明:
* An unidentified, unscored section that does not count toward a score may be included and may appear in any order after the Analytical Writing section. Questions in the unscored section are being tried out either for possible use in future tests or to ensure that scores on new editions of the test are comparable to scores from earlier editions.
** An identified research section may be included in place of the unscored section. The research section will always appear at the end of the test. Questions in this section are included for ETS research purposes and will not count toward your score.
The Analytical Writing section will always come first in the test. The Verbal Reasoning, Quantitative Reasoning, and unidentified/unscored sections may appear in any order; therefore, you should treat each section as if it counts toward your score.
1. 什么是unscored? 什么是research?
2. 既然这两种题是不计入最终分数的, 那么ETS为什么还要放在考试里, 这不坑考生吗?
3. 另外, 考过GRE机考的能否告诉我, 这两种题(unscored 和 research)是一定要做的吗?
5. 是不是考的时候不知道某个题是不是unscored? 还是说题目会标记这个题是unscored或research?
接下来, 是关于GRE机考中V和Q的section-level adaptive以及它的记分规则中的equating.
首先在Verbal Reasoning and Quantitative Reasoning Measures of the Computer-based Test一节提到:
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 section. 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.
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 the differences introduced by the section-level adaptation. Thus a given scaled score for a particular measure reflects the same level of performance regardless of which second section was selected and when the test was taken.
1. 什么是section-level adaptive? 我的理解是如果你第一个section 答的不错, 那么第二个section的题会很难?
2. 什么是上文中的equating? 如果两个人的sections的难度不同, 是否就会反映到最终的scaled score上?