Titlebook: Statistical Models for Test Equating, Scaling, and Linking; Alina A. Davier Book 2011 Springer Science+Business Media, LLC 2011 Measuremen

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Equating Through Alternative Kernelst common example involves multiple forms of a test within a testing program, as opposed to a single testing instrument. In a testing program, different test forms that are similar in content and format typically contain completely different test items. Consequently, the tests can vary in difficulty

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Local Observed-Score Equatingon two different tests cannot be equated unless the scores are perfectly reliable or the forms are strictly parallel (Lord, 1980, Chapter 13, Theorem 13.3.1). Because the first condition is impossible and equating under the second condition is unnecessary, the theorem is rather sobering.

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A General Model for IRT Scale Linking and Scale Transformationsf test equating is to allow the scores on different forms of the same tests to be used and interpreted interchangeably. Item response theory (IRT; Hambleton, Swaminathan, & Rogers, 1991; Lord, 1980; Thissen & Wainer, 2001) has provided new ways to approach test equating. Using IRT in the equating pr

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J?rg Niemann,Benedikt Reich,Carsten St?hrecology that would come into play in introducing it into energy systems nave received much less attention. For those reasons, this book attempts to show the development path of a hydrogen economy, based on assured technological knowledge. One special concern has been to demonstrate, on one hand, how

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Dirk Schmidt,Sebastian Heilmann. In experimental systems, resistance to multiple agents most often relates to expression of P-glycoprotein, or the multidrug resistance (MDR) phenotype. In this chapter we review the role of MDR in acute leukemia and current clinical trials at the Arizona Cancer Center aimed a-restoring chemosensitivity in these disorders.

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