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Determining the accuracy of item par...

The University of Nebraska - Lincoln., Education Psychology.

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Determining the accuracy of item parameter standard error of estimates in BILOG-MG 3.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Determining the accuracy of item parameter standard error of estimates in BILOG-MG 3./
Author:	Toland, Michael D.
Description:	137 p.
Notes:	Adviser: Rafael J. De Ayala.
Contained By:	Dissertation Abstracts International69-06B.
Subject:	Psychology, Psychometrics. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoeng/servlet/advanced?query=3317288
ISBN:	9780549672333

Determining the accuracy of item parameter standard error of estimates in BILOG-MG 3.
Toland, Michael D.

Determining the accuracy of item parameter standard error of estimates in BILOG-MG 3. - 137 p.

Adviser: Rafael J. De Ayala.

Thesis (Ph.D.)--The University of Nebraska - Lincoln, 2008.

The accuracy of the estimated SEc under the 3PL model was independent of the magnitude of the item c parameter being estimated and unaffected by any combination of factors studied. The implications and limitations of these results are discussed.

ISBN: 9780549672333Subjects--Topical Terms:

1017742
Psychology, Psychometrics.

Determining the accuracy of item parameter standard error of estimates in BILOG-MG 3.
LDR:03088nam 2200337 a 45 001 856040
005 20100708
008 100708s2008 ||||||||||||||||| ||eng d
020 $a 9780549672333
035 $a (UMI)AAI3317288
035 $a AAI3317288
040 $a UMI $c UMI
100 1 $a Toland, Michael D. $3 1022785
245 1 0 $a Determining the accuracy of item parameter standard error of estimates in BILOG-MG 3.
300 $a 137 p.
500 $a Adviser: Rafael J. De Ayala.
500 $a Source: Dissertation Abstracts International, Volume: 69-06, Section: B, page: 3895.
502 $a Thesis (Ph.D.)--The University of Nebraska - Lincoln, 2008.
520 $a The accuracy of the estimated SEc under the 3PL model was independent of the magnitude of the item c parameter being estimated and unaffected by any combination of factors studied. The implications and limitations of these results are discussed.
520 $a This study was conducted to determine the accuracy of item parameter standard error of estimates (SEEs) produced by BILOG-MG 3 by examining their performance under a variety of conditions. The Factors manipulated in this study were type of underlying difficulty (b) distribution, type of underlying discrimination (a) distribution, type of underlying lower asymptote (c) distribution, test length (I), type of underlying latent trait (&thgr;) distribution, sample size (J), and the number of quadrature points.
520 $a Results showed that the accuracy of the estimated SEb under the 1PL, 2PL, and 3PL models depended on the magnitude of the b parameter being estimated. Under the 1PL model, the accuracy of the estimated SEb was related to the underlying b and &thgr; distributions as well as I. The 2PL model results showed that the accuracy of the estimated SEb was related to I, but no other factors in this study had an impact on the accuracy of estimation of SEb under this model. For the 3PL model, results showed that the accuracy of the estimated SEb tended to be impacted by I, while certain combinations of J, I, underlying b distribution, and underlying a distribution had consistently uniform accuracy of estimation of SEb across the range of b parameters studied.
520 $a When considering the accuracy of the estimated SEa, the 2PL and 3PL model results showed that the accuracy depended upon the magnitude of the a parameter being estimated, while an increase in I increased the accuracy of the estimated SEa under the 2PL and 3PL models. Moreover, 2PL and 3PL model results showed the accuracy of the estimated SEa was related to the underlying item a, b, and &thgr; distributions as well as J and I, when the entire range of a parameters was considered.
590 $a School code: 0138.
650 4 $a Psychology, Psychometrics. $3 1017742
690 $a 0632
710 2 $a The University of Nebraska - Lincoln. $b Education Psychology. $3 1022784
773 0 $t Dissertation Abstracts International $g 69-06B.
790 $a 0138
790 1 0 $a Ansorge, Chales $e committee member
790 1 0 $a Burning, Roger $e committee member
790 1 0 $a De Ayala, Rafael J., $e advisor
790 1 0 $a Heaton, Ruth $e committee member
791 $a Ph.D.
792 $a 2008
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoeng/servlet/advanced?query=3317288