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Optimized short-forms of the Cognitive Distortions Questionnaire
Morrison, Amanda S. Ustun, Berk Horenstein, Arielle de Oliveira, Irismar Reis Batmaz, Sedat Gross, James J. Sadikova, Ekaterina Hemmany, Curt Pires, Pedro P.
Morrison, Amanda S.
Ustun, Berk
Horenstein, Arielle
de Oliveira, Irismar Reis
Batmaz, Sedat
Gross, James J.
Sadikova, Ekaterina
Hemmany, Curt
Pires, Pedro P.
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Journal article
Date
2022-09-08
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Psychology and Neuroscience
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http://dx.doi.org/10.1016/j.janxdis.2022.102624
Abstract
Introduction: The Cognitive Distortions Questionnaire (CD-Quest) is a self-report questionnaire that assesses common cognitive distortions. Although the CD-Quest has excellent psychometric properties, its length may limit its use. Methods: We attempted to develop short-forms of the CD-Quest using RiskSLIM – a machine learning method to build short-form scales that can be scored by hand. Each short-form was fit to maximize concordance with the total CD-Quest score for a specified number of items based on an objective function, in this case R2, by selecting an optimal subset of items and an optimal set of small integer weights. The models were trained in a sample of US undergraduate students (N = 906). We then validated each short-form on five independent samples: two samples of undergraduate students in Brazil (Ns = 182, 183); patients with depression in Brazil (N = 62); patients with social anxiety disorder in the US (N = 198); and psychiatric outpatients in Turkey (N = 269). Results: A 9-item short-form with integer scoring was created that reproduced the total 15-item CD-Quest score in all validation samples with excellent accuracy (R2 = 90.4-93.6%). A 5-item ultra-short-form had good accuracy (R2 = 78.2-85.5%). Discussion: A 9-item short-form and a 5-item ultra-short-form of the CD-Quest both reproduced full CD-Quest scores with excellent to good accuracy. These shorter versions of the full CD-Quest could facilitate measurement of cognitive distortions for users with limited time and resources.
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Amanda S. Morrison, Berk Ustun, Arielle Horenstein, Simona C. Kaplan, Irismar Reis de Oliveira, Sedat Batmaz, James J. Gross, Ekaterina Sadikova, Curt Hemanny, Pedro P. Pires, Philippe R. Goldin, Ronald C. Kessler, Richard G. Heimberg, Optimized short-forms of the Cognitive Distortions Questionnaire, Journal of Anxiety Disorders, Volume 92, 2022,102624, ISSN 0887-6185, https://doi.org/10.1016/j.janxdis.2022.102624.
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Elsevier
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Journal of Anxiety Disorders, Vol. 92
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