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2011
Several user-contributed packages can fit IRT models. The packages we use the most is the ltm package by Dimitris Rizopoulos and the MCMCpack packages by Andrew Martin, Kevin Quinn, and Jong Hee Park. The eRm package by Patrick Mair, Reinhold Hatzinger, and Marco Maier also has powerful features. But our experience with eRm is limited at this time.
Yuelin Li, Jonathan Baron
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Several user-contributed packages can fit IRT models. The packages we use the most is the ltm package by Dimitris Rizopoulos and the MCMCpack packages by Andrew Martin, Kevin Quinn, and Jong Hee Park. The eRm package by Patrick Mair, Reinhold Hatzinger, and Marco Maier also has powerful features. But our experience with eRm is limited at this time.
Yuelin Li, Jonathan Baron
openaire +2 more sources
2018
Item response theory (IRT) is a psychometric modeling framework for analyzing categorical data from questionnaires, tests, and other instruments that aim to measure underlying latent traits. Simply speaking, these models estimate a parameter for each item, as well as a parameter for each person.
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Item response theory (IRT) is a psychometric modeling framework for analyzing categorical data from questionnaires, tests, and other instruments that aim to measure underlying latent traits. Simply speaking, these models estimate a parameter for each item, as well as a parameter for each person.
+4 more sources
2014
Abstract Since the 1960s, there has been a revolution in the approach to scale development. Called item response theory (IRT), this approach challenges the notion that scales must be long in order to be reliable, and that psychometric properties of a scale derived from one group of people cannot be applied to different groups.
David L. Streiner +2 more
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Abstract Since the 1960s, there has been a revolution in the approach to scale development. Called item response theory (IRT), this approach challenges the notion that scales must be long in order to be reliable, and that psychometric properties of a scale derived from one group of people cannot be applied to different groups.
David L. Streiner +2 more
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1991
During the past 30 years or so, a new theoretical basis for educational and psychological testing and measurement has emerged. It has been variously referred to as latent trait theory, item characteristic curve theory, and, more recently, item response theory (IRT).
David J. Weiss, Michael E. Yoes
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During the past 30 years or so, a new theoretical basis for educational and psychological testing and measurement has emerged. It has been variously referred to as latent trait theory, item characteristic curve theory, and, more recently, item response theory (IRT).
David J. Weiss, Michael E. Yoes
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2017
Die besondere Leistung der Item-Response-Theorie beruht auf einer spezifischen Bearbeitung der Relation von Person und Test. Wahrend die klassische Testtheorie darauf abzielt, den Test an einer Eichpopulation zu einem neutralen Messinstrument der gegebenen Antworten zu machen, verlagert die Item-Response-Theorie die Funktion der Neutralitat auf die ...
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Die besondere Leistung der Item-Response-Theorie beruht auf einer spezifischen Bearbeitung der Relation von Person und Test. Wahrend die klassische Testtheorie darauf abzielt, den Test an einer Eichpopulation zu einem neutralen Messinstrument der gegebenen Antworten zu machen, verlagert die Item-Response-Theorie die Funktion der Neutralitat auf die ...
openaire +1 more source