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Tests taken before October 2004 were scored simply by the number of questions the test-taker answered correctly, with a range from 0-100. Scores using this metric have historically been known as "raw" scores. Tests taken in October 2004 or later had a score range from 200 to 600. The median score was 400, with a standard deviation of 25 points ...
At this time, the SAT was standardized so that a test score received by a student in one year could be directly compared to a score received by a student in another year. Test scores ranged from 200 to 800 on each of two test sections (verbal and math) and the same reference group of students was used to standardize the SAT until 1995. [228]
A raw score is a score without any sort of adjustment or transformation, such as the simple number of questions answered correctly. A scaled score is the result of some transformation(s) applied to the raw score, such as in relative grading. The purpose of scaled scores is to report scores for all examinees on a consistent scale. Suppose that a ...
From 1926 to 1941, scores on the SAT were scaled to make 500 the mean score on each section. In 1941 and 1942, SAT scores were standardized via test equating, and as a consequence, average verbal and math scores could vary from that time forward. [31]
The reason for the choice of the number 21.06 is to bring about the following result: If the scores are normally distributed (i.e. they follow the "bell-shaped curve") then the normal equivalent score is 99 if the percentile rank of the raw score is 99; the normal equivalent score is 50 if the percentile rank of the raw score is 50;
The scaled score was the only score reported to either students or colleges, and ranged from 200 to 800, with 800 being the best possible score. The standard deviation between test scores in 2006 was 102. [2] Less than one percent of the 2006 College-Bound Seniors taking the test received a perfect score of 800. None got a score lower than 260.
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The conversion between these numbers varied depending on the difficulty of a particular test administration. The scaled score was the only score reported to either students or colleges and ranges from 200 to 800, with 800 being the best possible score. The mean and standard deviation of the test scores in 2009 were 599 and 115, respectively. [1]
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