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The Common Admission Test (CAT), like virtually all large-scale exams, utilises multiple forms, or versions, of the test. Hence there are two types of scores involved: a raw score and a scaled score. The raw score is calculated for each section based on the number of questions one answered correctly, incorrectly, or left unattempted.
A confidence interval approach is also used, where after each item is administered, the algorithm determines the probability that the examinee's true-score is above or below the passing score. [ 16 ] [ 17 ] For example, the algorithm may continue until the 95% confidence interval for the true score no longer contains the passing score.
The figure illustrates the percentile rank computation and shows how the 0.5 × F term in the formula ensures that the percentile rank reflects a percentage of scores less than the specified score. For example, for the 10 scores shown in the figure, 60% of them are below a score of 4 (five less than 4 and half of the two equal to 4) and 95% are ...
In statistics, a k-th percentile, also known as percentile score or centile, is a score below which a given percentage k of scores in its frequency distribution falls ("exclusive" definition) or a score at or below which a given percentage falls ("inclusive" definition); i.e. a score in the k-th percentile would be above approximately k% of all scores in its set.
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;
Changes include a new 130–170 scoring scale, the elimination of certain question types such as antonyms and analogies, the addition of an online calculator, and the elimination of the CAT format of question-by-question adjustment, in favor of a section by section adjustment.
California's school accountability system was originally based solely on scores from the CAT/6. Through the Academic Performance Index (API), the scores drove the allocation of millions of dollars in intervention and award programs, depending on the health of the state’s budget. (The state has not funded award or intervention programs based ...
Previously, the maximum score on the DLAB was 176, but as of 2016 has been lowered to 164. [9] [10] As of 2010, Category I languages had 26 weeks of study, Cat II had 35 weeks, Cat III had 48 weeks, and Cat IV had 64 weeks. [11] By 2022, Cat I and II had 36 weeks of courses, Cat III had 48 weeks, and Cat IV had 64 weeks. [12]