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Direct linkBriggs, Derek C. – Journal of Educational Measurement, 2013
A vertical score scale is needed to measure growth across multiple tests in terms of absolute changes in magnitude. Since the warrant for subsequent growth interpretations depends upon the assumption that the scale has interval properties, the validation of a vertical scale would seem to require methods for distinguishing interval scales from…
Descriptors: Measurement, Scaling, Validity, Test Interpretation
Peer reviewedWright, Benjamin D.; Stenner, A. Jackson – Popular Measurement, 1999
Discusses the use of "Lexile" units as measures of reading ability. (SLD)
Descriptors: Measurement Techniques, Reading Achievement, Scaling, Student Evaluation
Peer reviewedWright, Benjamin D.; Stenner, A. Jackson – Popular Measurement, 1999
Discusses the use of "Lexile" units in test construction. (SLD)
Descriptors: Measurement Techniques, Reading Achievement, Scaling, Student Evaluation
