KESTABILAN ESTIMASI PARAMETER KEMAMPUAN PADA MODEL LOGISTIK ITEM RESPONSE THEORY DITINJAU DARI PANJANG TES
نویسندگان
چکیده
منابع مشابه
Estimation of a four-parameter item response theory model.
We explore the justification and formulation of a four-parameter item response theory model (4PM) and employ a Bayesian approach to recover successfully parameter estimates for items and respondents. For data generated using a 4PM item response model, overall fit is improved when using the 4PM rather than the 3PM or the 2PM. Furthermore, although estimated trait scores under the various models ...
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Statistical properties of the ability level estimate ( ) in item response theory (IRT) were investigated through a Monte Carlo investigation, based on data generated with a four cases multifactor design. Dichotomous items and the logistic two-parameter IRT model in a one-dimensional setting have been chosen. The estimation procedure was the marginalized Bayesian item parameters estimation and E...
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Item response theory is a large sample procedure to estimate item parameters based on individual response strings. However, what happens when the data available to estimate item parameters is small? This situation is common when new assessment items are tried out for inclusion in future operational assessments, commonly called field testing. In field tests, many items are spread out over a fixe...
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This study investigates the impact of item parameter drift (IPD) on parameter and ability estimation when the underlying measurement model fits a mixture distribution, thereby violating the item invariance property of unidimensional item response theory (IRT) models. An empirical study was conducted to demonstrate the occurrence of both IPD and an underlying mixture distribution using real-worl...
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BACKGROUND Better understanding of acute stress responses is important for revision of DSM-5. However, the latent structure and relationship between different aspects of acute stress responses haven't been clarified comprehensively. Bifactor item response model may help resolve this problem. OBJECTIVE The purpose of this study is to develop a statistical model of acute stress responses, based...
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ژورنال
عنوان ژورنال: SAP (Susunan Artikel Pendidikan)
سال: 2017
ISSN: 2549-2845,2527-967X
DOI: 10.30998/sap.v2i2.2028