Investigating the Impact of Item Parameter Drift for Item Response Theory Models with Mixture Distributions

Investigating the Impact of Item Parameter Drift for Item Response Theory Models with Mixture Distributions

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...

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Bibliographic Details
Main Authors: Yoon Soo ePark, Young-Sun eLee, Kuan eXing
Format: Article
Language:English
Published: Frontiers Media S.A. 2016-02-01
Series:Frontiers in Psychology
Subjects:
Differential Item Functioning
item response theory
TIMSS
item parameter drift
mixture IRT
Online Access:http://journal.frontiersin.org/Journal/10.3389/fpsyg.2016.00255/full

Internet

http://journal.frontiersin.org/Journal/10.3389/fpsyg.2016.00255/full

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