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An Alternative IRT Observed Score Equating Method. CRESST Report 751

2009
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Release : 2009
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Book Synopsis An Alternative IRT Observed Score Equating Method. CRESST Report 751 by : Taehoon Kang

Download or read book An Alternative IRT Observed Score Equating Method. CRESST Report 751 written by Taehoon Kang. This book was released on 2009. Available in PDF, EPUB and Kindle. Book excerpt: In this report, an alternative item response theory (IRT) observed score equating method was newly developed. The proposed equating method was illustrated with two real data sets and the equating results were compared to those of traditional IRT true score and IRT observed score equating methods. Using three loss indices, the new method appeared to produce equating equivalents more similar to those of the IRT observed score equating than those of the IRT true score equating. In addition to the conversion relationships between new form scores and their equating equivalents on the old form scale, the bootstrap standard errors of equating were provided and compared for the three IRT equating methods. These methods performed similarly. (Contains 5 figures and 3 tables.).

Comparison of IRT Observed-score and True-score "equatings"

1983 Educational tests and measurements
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Release : 1983
Genre : Educational tests and measurements
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Book Synopsis Comparison of IRT Observed-score and True-score "equatings" by : Frederic M. Lord

Download or read book Comparison of IRT Observed-score and True-score "equatings" written by Frederic M. Lord. This book was released on 1983. Available in PDF, EPUB and Kindle. Book excerpt: Two methods of 'equating' tests using item response theory are compared, one using true scores, the other using estimated observed scores. On the data studied, they yield almost indistinguishable results. This is a reassuring result for users of IRT equating methods. (Author).

Comparison of IRT Observed-score Equating with Both IRT True- Score and Classical Equipercentile Equating

1993
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Release : 1993
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Book Synopsis Comparison of IRT Observed-score Equating with Both IRT True- Score and Classical Equipercentile Equating by : Tianqi Han

Download or read book Comparison of IRT Observed-score Equating with Both IRT True- Score and Classical Equipercentile Equating written by Tianqi Han. This book was released on 1993. Available in PDF, EPUB and Kindle. Book excerpt:

A Comparison of Kernel Equating and IRT True Score Equating Methods

2007 Educational tests and measurements
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Release : 2007
Genre : Educational tests and measurements
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Book Synopsis A Comparison of Kernel Equating and IRT True Score Equating Methods by :

Download or read book A Comparison of Kernel Equating and IRT True Score Equating Methods written by . This book was released on 2007. Available in PDF, EPUB and Kindle. Book excerpt: "This two-part study investigates 1) the impact of loglinear model selection in pre-smoothing observed score distributions on the kernel method of test equating and 2) the differences between kernel equating, chained equipercentile equating, and true score methods of concurrent calibration and Stocking and Lord's transformation method. Data were simulated to emulate realistic situations in which test difficulty differed, sample sizes varied, anchor test lengths were of varying lengths, and test lengths ranged from 20 items to 100 items. Difficulty of anchor tests were held constant. Because data were simulated in a single group (SG) format, traditional unsmoothed equipercentile equating was used as a criterion by which all other methods, which use the non-equivalent groups with an anchor test design (NEAT), were compared. Data were simulated using IceDog (ETS, 2007) and analyzed using KE software (ETS, 2007), MULTILOG (Thissen, 2003), IceDog (ETS, 2007), PARSCALE (Muraki & Bock, 2003) and Fortran programming code developed by the author. Results indicate the impact of equating technique chosen on examinees' test scores in a variety of realistic situations, and have further recommendations for further study."--Abstract from author supplied metadata.

A Comparison of Observed Score and True Score Equating Methods for Representative Samples and Samples Matched on an Anchor Test

1988 Examinations
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Release : 1988
Genre : Examinations
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Book Synopsis A Comparison of Observed Score and True Score Equating Methods for Representative Samples and Samples Matched on an Anchor Test by : Ida M. Lawrence

Download or read book A Comparison of Observed Score and True Score Equating Methods for Representative Samples and Samples Matched on an Anchor Test written by Ida M. Lawrence. This book was released on 1988. Available in PDF, EPUB and Kindle. Book excerpt:

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