Journal article
The continuized log-linear method: An alternative to the kernel method of continuization in test equating
Applied psychological measurement, Vol.32(7), pp.527-542
10/01/2008
DOI: 10.1177/0146621607314043
Abstract
Von Davier, Holland, and Thayer (2004) laid out a five-step framework of test equating that can be applied to various data collection designs and equating methods. In the continuization step, they presented an adjusted Gaussian kernel method that preserves the first two moments. This article proposes an alternative continuization method that directly uses the log-linear function from the smoothing step. This alternative method has the advantages of being simple and direct and producing smoother continuous distributions. When the number of score points is large, it can better preserve the moments. Two real test examples are provided to demonstrate these properties and to compare equating functions based on different methods. The standard error of equating for this method is derived.
Details
- Title: Subtitle
- The continuized log-linear method: An alternative to the kernel method of continuization in test equating
- Creators
- Tianyou Wang - University of Iowa
- Resource Type
- Journal article
- Publication Details
- Applied psychological measurement, Vol.32(7), pp.527-542
- Publisher
- Sage
- DOI
- 10.1177/0146621607314043
- ISSN
- 0146-6216
- eISSN
- 1552-3497
- Number of pages
- 16
- Language
- English
- Date published
- 10/01/2008
- Academic Unit
- Center for Advanced Studies in Measurement and Assessment
- Record Identifier
- 9984627306802771
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