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Accuracy of Individual Scores Expressed in Percentile Ranks: Classical Test Theory Calculations. CSE Technical Report.
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Rogosa, David – 2000
In the reporting of individual student results from standardized tests in educational assessments, the percentile rank of the individual student is a major numerical indicator. This paper develops a formulation and presents calculations to examine the accuracy of the individual percentile rank score. Here, accuracy follows the common-sense…
Descriptors: Comparative Analysis, Elementary Secondary Education, Standardized Tests, Test Results
Accuracy of Year-1, Year-2 Comparisons Using Individual Percentile Rank Scores: Classical Test Theory Calculations. CSE Technical Report.
PDF on ERIC Download full text
Rogosa, David – 2000
In the reporting of individual student results from standardized tests in educational assessments, the percentile rank of the individual student is a major numerical indicator. For example, in the 1998 and 1999 California Standardized Testing and Reporting (STAR) program using the Stanford Achievement Test Series, Ninth Edition, Form T (Stanford…
Descriptors: Comparative Analysis, Elementary Secondary Education, Standardized Tests, Tables (Data)