The Expanded Version of the Inferential Confusion Questionnaire: Further Development and Validation in Clinical and Non-Clinical Samples |
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| Authors: | Frederick Aardema Kevin D. Wu Yves Careau Kieron O’Connor Dominic Julien Susan Dennie |
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| Affiliation: | 1.Fernand Seguin Research Center,Montréal,Canada;2.Concordia University,Montreal,Canada;3.Northern Illinois University,DeKalb,USA;4.Clinique des Troubles Anxieux, Département de psychologie,UIMH Robert-Giffard,Quebec City,Canada;5.University of Montreal,Montreal,Canada |
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| Abstract: | The current study represents the further development and validation of an expanded version of the Inferential Confusion Questionnaire (ICQ-EV) in non-clinical and clinical samples. Inferential confusion seems to be particularly relevant to Obsessive-Compulsive Disorder (OCD) and is defined as a failure to recognize the unrealistic nature of obsessions due to a subjective form of reasoning. Factor analysis of the item-set of the ICQ-EV indicated a one-dimensional solution in non-clinical and clinical samples. It was hypothesized that inferential confusion as measured by the ICQ-EV would be particularly relevant to participants with OCD. Results confirmed convergent validity with strong relationships between the ICQ-EV and obsessive-compulsive symptoms in all samples independent of other cognitive domains and general distress. In addition, those with OCD scored higher on the ICQ-EV than non-clinical controls and a mixed anxiety disorder group so confirming group-criterion validity. Finally, the ICQ-EV also showed clinical validity with change in ICQ-EV scores during treatment significantly related to successful treatment outcome. |
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