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- Publisher Website: 10.1111/j.1745-3984.2008.00070.x
- Scopus: eid_2-s2.0-57049115513
- WOS: WOS:000261204300004
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Article: Summarizing item difficulty variation with parcel scores
Title | Summarizing item difficulty variation with parcel scores |
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Authors | |
Issue Date | 2008 |
Citation | Journal of Educational Measurement, 2008, v. 45, n. 4, p. 363-389 How to Cite? |
Abstract | A new method for analyzing differential item functioning is proposed to investigate the relative strengths and weaknesses of multiple groups of examinees. Accordingly, the notion of a conditional measure of difference between two groups (Reference and Focal) is generalized to a conditional variance. The objective of this article is to present and illustrate a strategy for aggregating results across sets of similar items that exhibit item difficulty variation. Logically, this aggregation strategy is related to the idea of DIF amplification, but estimation is ultimately carried out in the framework of a confirmatory multidimensional Rasch model. Grade 4 data from the 2000 National Assessment of Educational Progress are used to illustrate the technique. © 2008 by the National Council on Measurement in Education. |
Persistent Identifier | http://hdl.handle.net/10722/228066 |
ISSN | 2023 Impact Factor: 1.4 2023 SCImago Journal Rankings: 0.755 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Camilli, Gregory | - |
dc.contributor.author | Prowker, Adam | - |
dc.contributor.author | Dossey, John A. | - |
dc.contributor.author | Lindquist, Mary M. | - |
dc.contributor.author | Chiu, Ting W. | - |
dc.contributor.author | Vargas, Sadako | - |
dc.contributor.author | De La Torre, Jimmy | - |
dc.date.accessioned | 2016-08-01T06:45:06Z | - |
dc.date.available | 2016-08-01T06:45:06Z | - |
dc.date.issued | 2008 | - |
dc.identifier.citation | Journal of Educational Measurement, 2008, v. 45, n. 4, p. 363-389 | - |
dc.identifier.issn | 0022-0655 | - |
dc.identifier.uri | http://hdl.handle.net/10722/228066 | - |
dc.description.abstract | A new method for analyzing differential item functioning is proposed to investigate the relative strengths and weaknesses of multiple groups of examinees. Accordingly, the notion of a conditional measure of difference between two groups (Reference and Focal) is generalized to a conditional variance. The objective of this article is to present and illustrate a strategy for aggregating results across sets of similar items that exhibit item difficulty variation. Logically, this aggregation strategy is related to the idea of DIF amplification, but estimation is ultimately carried out in the framework of a confirmatory multidimensional Rasch model. Grade 4 data from the 2000 National Assessment of Educational Progress are used to illustrate the technique. © 2008 by the National Council on Measurement in Education. | - |
dc.language | eng | - |
dc.relation.ispartof | Journal of Educational Measurement | - |
dc.title | Summarizing item difficulty variation with parcel scores | - |
dc.type | Article | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1111/j.1745-3984.2008.00070.x | - |
dc.identifier.scopus | eid_2-s2.0-57049115513 | - |
dc.identifier.volume | 45 | - |
dc.identifier.issue | 4 | - |
dc.identifier.spage | 363 | - |
dc.identifier.epage | 389 | - |
dc.identifier.eissn | 1745-3984 | - |
dc.identifier.isi | WOS:000261204300004 | - |
dc.identifier.issnl | 0022-0655 | - |