A Primer on the One-Parameter Rasch Model

Randy McCamey

American Journal of Economics and Business Administration, 2015, vol. 6, issue 4, 159-163

Abstract: The Rasch measurement model improves on traditional test construction by creating tests in which the person’s ability is independent of the sample of items used and the norm group used to calibrate the test. This article is an introductory review of the Rasch Model and describes properties of the Item Characteristic Curve (ICC) and discusses the utility of having person ability and item difficulty on a common scale.

Keywords: Item Response Theory; Rasch; Test Construction; Item Difficulty (search for similar items in EconPapers)
Date: 2015
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Persistent link: https://EconPapers.repec.org/RePEc:abk:jajeba:ajebasp.2014.159.163

DOI: 10.3844/ajebasp.2014.159.163

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