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Estimation of item location effects by means of the generalized logistic regression model: a simulation study and an application

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Author(s): RAINER ALEXANDROWICZ | HERBERT MATSCHINGER

Journal: Psychology Science Quarterly
ISSN 1866-6140

Volume: 50;
Issue: 1;
Start page: 64;
Date: 2008;
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Keywords: Item location effect | position effect | Generalized Logistic Regression Model | Generalized Linear Mixed Model | Linear Logistic Test Model

ABSTRACT
The present paper deals with the application of the generalized logistic regression model to the estimation of item location effects. A Monte Carlo study demonstrates that item difficulties and item location effects show excellent parameter recovery when distributional assumptions of the marginal maximum likelihood method are not met. A practical application to a reasoning test revealed the existence of item location effects and an effect of total test taking time. This model allows for the flexible utilization to a wide range of problems and thus provides a powerful tool for item analysis.
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