Measuring individuals' response quality in self-administered psychological tests : an introduction to Gendre's functional method

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Version: Final published version
Serval ID
serval:BIB_FE0A2034DC74
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Measuring individuals' response quality in self-administered psychological tests : an introduction to Gendre's functional method
Journal
Frontiers in Psychology
Author(s)
Dupuis M., Meier E., Capel R., Gendre F.
ISSN
1664-1078
Publication state
Published
Issued date
2015
Peer-reviewed
Oui
Volume
6
Number
629
Pages
12
Language
english
Abstract
The functional method is a new test theory using a new scoring method that assumes complexity in test structure, and thus takes into account every correlation between factors and items. The main specificity of the functional method is to model test scores by multiple regression instead of estimating them by using simplistic sums of points. In order to proceed, the functional method requires the creation of hyperspherical measurement space, in which item responses are expressed by their correlation with orthogonal factors. This method has three main qualities. First, measures are expressed in the absolute metric of correlations; therefore, items, scales and persons are expressed in the same measurement space using the same single metric. Second, factors are systematically orthogonal and without errors, which is optimal in order to predict other outcomes. Such predictions can be performed to estimate how one would answer to other tests, or even to model one's response strategy if it was perfectly coherent. Third, the functional method provides measures of individuals' response validity (i.e., control indices). Herein, we propose a standard procedure in order to identify whether test results are interpretable and to exclude invalid results caused by various response biases based on control indices.
Keywords
functional method, exploratory factor analysis, psychometrics, response reliability, response validity, self-rated questionnaires
Pubmed
Open Access
Yes
Create date
15/05/2015 22:48
Last modification date
20/08/2019 17:28
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