To create the percentile conversions, we took a blended average of the Critical Reading and Writing percentiles (adjusted for the relative frequency of Critical Reading and Writing questions on the new version).
Because the scoring scale of the Mathematics section has not been altered, we used the same percentile distribution as the old SAT.
Standardized tests are a useful way to determine a student’s ability, relative to that of his or her peers, because the tests are designed such that there will always be an equal ratio of high scores to medium scores to low scores.
This allows us to assign each score a percentile — a figure that represents where a score sits on a distribution curve.
The other steps average about 15-16 scaled-score points for a one-point increase in the essay score. I started by assuming that ETS would follow normal psychometric practice in creating a composite scale.
That means that the composite writing score should be calculated in one of two ways: either by adding weighted raw scores to produce a composite raw score, which is then translated to a scaled score, or by assigning separate scales to the multiple-choice portion and the essay portion and adding the two to produce the final composite scale.Under this method, we can think of a composite scaled score as the sum of a multiple-choice scaled score (NB: not the same as the multiple-choice subscore reported on the test report) and an essay scaled score.In other words, $S_ = S_m S_e 200$, where $S_m$ is the scaled-score contribution for a multiple-choice raw score of $m$, and $S_e$ is the scaled-score contribution for an essay score of $e$.For example, obtaining a perfect score on the old SAT (2400) puts you in the 99 percentile, meaning you scored higher than 1% of the other test takers.In order to make our score and percentile conversion chart, we worked under the assumption that the College Board is aiming to keep the old SAT distribution similar to the new one (with a few at the top, lots in the middle, and few at the bottom).As you can see, though, that's clearly not how the essay value is calculated, although these nominal amounts are within the observed range for most essay scores.The precise amount will be calculated based on the observed distribution of scores for that essay.Based on the pattern of numbers in the scale tables, I strongly suspected that the second method was the one used, but I checked them both out to be sure.I could not find any set of numbers that could explain the observed score tables under the assumption that weighted raw scores were summed, but I found solutions for every score table I tried under the second method.When she's not writing for the College Vine blog, she's studying Russian literature and testing the limits of how much coffee one single person can consume in a day.SAT essay, which was made obsolete in 2016] As you probably know, the 200-800 score for the SAT Writing test is a composite score, based on a combination of an essay and multiple-choice questions.