An Item Response Theory Analysis of The Questionnaire of God Representations: International Journal for the Psychology of Religion

H. Schaap-Jonker; I. J. L. Egberink; A. W. Braam; J. M. T. Corveleyn

doi:10.1080/10508619.2014.1003520

An Item Response Theory Analysis of The Questionnaire of God Representations: International Journal for the Psychology of Religion

H. Schaap-Jonker
, I. J. L. Egberink
, A. W. Braam
, J. M. T. Corveleyn

Research output: Contribution to journal › Article › Academic › peer-review

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Abstract

The Dutch Questionnaire of God Representations (QGR) was investigated by means of item response theory (IRT) modeling in a clinical (n = 329) and a nonclinical sample (n = 792). Through a graded response model and IRT-based differential functioning techniques, detailed item-level analyses and information about measurement invariance between the clinical and nonclinical sample were obtained. On the basis of the results of the IRT analyses, a shortened version of the QGR (S-QGR) was constructed, consisting of 22 items, which functions in the same way in both the clinical and the nonclinical sample. Results indicated that the QGR consists of strong and reliable scales which are able to differentiate among persons. Psychometric characteristics of the S-QGR were adequate.

Original language	English
Pages (from-to)	152-166
Number of pages	15
Journal	Int. J. Psychol. Relig.
Volume	26
DOIs	https://doi.org/10.1080/10508619.2014.1003520
Publication status	Published - 2016

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abstract = "The Dutch Questionnaire of God Representations (QGR) was investigated by means of item response theory (IRT) modeling in a clinical (n = 329) and a nonclinical sample (n = 792). Through a graded response model and IRT-based differential functioning techniques, detailed item-level analyses and information about measurement invariance between the clinical and nonclinical sample were obtained. On the basis of the results of the IRT analyses, a shortened version of the QGR (S-QGR) was constructed, consisting of 22 items, which functions in the same way in both the clinical and the nonclinical sample. Results indicated that the QGR consists of strong and reliable scales which are able to differentiate among persons. Psychometric characteristics of the S-QGR were adequate.",

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An Item Response Theory Analysis of The Questionnaire of God Representations: International Journal for the Psychology of Religion

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