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The mixture distribution polytomous ...

Cho, Youngmi.

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The mixture distribution polytomous rasch model used to account for response styles on rating scales: A simulation study of parameter recovery and classification accuracy.

Record Type:	Electronic resources : Monograph/item
Title/Author:	The mixture distribution polytomous rasch model used to account for response styles on rating scales: A simulation study of parameter recovery and classification accuracy./
Author:	Cho, Youngmi.
Description:	190 p.
Notes:	Source: Dissertation Abstracts International, Volume: 75-02(E), Section: B.
Contained By:	Dissertation Abstracts International75-02B(E).
Subject:	Quantitative psychology. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3599519
ISBN:	9781303488894

The mixture distribution polytomous rasch model used to account for response styles on rating scales: A simulation study of parameter recovery and classification accuracy.
Cho, Youngmi.

The mixture distribution polytomous rasch model used to account for response styles on rating scales: A simulation study of parameter recovery and classification accuracy. - 190 p.

Source: Dissertation Abstracts International, Volume: 75-02(E), Section: B.

Thesis (Ph.D.)--University of Maryland, College Park, 2013.

This item is not available from ProQuest Dissertations & Theses.

Response styles presented in rating scale use have been recognized as an important source of systematic measurement bias in self-report assessment. People with the same amount of a latent trait may be a victim of a biased test score due to the construct's irrelevant effect of response styles. The mixture polytomous Rasch model has been proposed as a tool to deal with the response style problems. This model can be used to classify respondents with different response styles into different latent classes and provides person trait estimates that have been corrected for the effect of a response style.

ISBN: 9781303488894Subjects--Topical Terms:

2144748
Quantitative psychology.

The mixture distribution polytomous rasch model used to account for response styles on rating scales: A simulation study of parameter recovery and classification accuracy.
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100 1 $a Cho, Youngmi. $3 3168715
245 1 4 $a The mixture distribution polytomous rasch model used to account for response styles on rating scales: A simulation study of parameter recovery and classification accuracy.
300 $a 190 p.
500 $a Source: Dissertation Abstracts International, Volume: 75-02(E), Section: B.
500 $a Adviser: Jeffrey R. Harring.
502 $a Thesis (Ph.D.)--University of Maryland, College Park, 2013.
506 $a This item is not available from ProQuest Dissertations & Theses.
520 $a Response styles presented in rating scale use have been recognized as an important source of systematic measurement bias in self-report assessment. People with the same amount of a latent trait may be a victim of a biased test score due to the construct's irrelevant effect of response styles. The mixture polytomous Rasch model has been proposed as a tool to deal with the response style problems. This model can be used to classify respondents with different response styles into different latent classes and provides person trait estimates that have been corrected for the effect of a response style.
520 $a This study investigated how well the mixture partial credit model (MPCM) recovered model parameters under various testing conditions. Item responses that characterized extreme response style (ERS), middle-category response style (MRS), and acquiescent response style (ARS) on a 5-category Likert scale as well as ordinary response style (ORS), which does not involve distorted rating scale use, were generated. The study results suggested that ARS respondents could be almost perfectly classified from other response-style respondents while the distinction between MRS and ORS respondents was most difficult followed by the distinction between ERS and ORS respondents. The classifications were more difficult when the distorted response styles were present in small proportions within the sample. Ten-items and a sample size of 3000 appeared to warrant reasonable threshold and person parameter estimation under the simulated conditions in this study. As the structure of mixture of response styles became more complex, increased sample size, test length, and balanced mixing proportion were needed in order to achieve the same level of recovery accuracy. Misclassification impacted the overall accuracy of person trait estimation. BIC was found to be the most effective data-model fit statistic in identifying the correct number of latent classes under this modeling approach. The model-based correction of score bias was explored with up to four different response-style latent classes. Problems with the estimation of the model including non-convergence, boundary threshold estimates, and label switching were discussed.
590 $a School code: 0117.
650 4 $a Quantitative psychology. $3 2144748
650 4 $a Educational tests & measurements. $3 3168483
690 $a 0632
690 $a 0288
710 2 $a University of Maryland, College Park. $b Measurement, Statistics and Evaluation. $3 1267183
773 0 $t Dissertation Abstracts International $g 75-02B(E).
790 $a 0117
791 $a Ph.D.
792 $a 2013
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3599519