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Second-Order Factor Structure of the Vancouver Obsessive Compulsive Inventory (VOCI) in a Non-Clinical Sample

Published online by Cambridge University Press:  22 February 2011

Carlo Chiorri ,
Gabriele Melli  and
Rosa Smurra
Carlo Chiorri*
Affiliation:
University of Genoa, Italy
Gabriele Melli
Affiliation:
Institute of Cognitive-Behavioural Psychotherapy, Florence, Italy
Rosa Smurra
Affiliation:
Institute of Cognitive-Behavioural Psychotherapy, Florence, Italy
*
Reprint requests to Carlo Chiorri, University of Genoa, Anthropological Sciences, Psychology Unit, Corso Podestà, 2 Genoa 16128, Italy. E-mail: carlo.chiorri@unige.it
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Abstract

Background: The Vancouver Obsessive Compulsive Inventory (VOCI) is a self-report measure of the severity of obsessive-compulsive problems such as contamination, checking, obsessions, hoarding, needing things to be just right, and indecisiveness. In the seminal paper a six-correlated-factor structure was found in a sample of OC patients, but the issue of the factor structure of the VOCI in non-clinical populations was not addressed. Aim: This study assesses the psychometric properties and the factor structure of the Italian version of the VOCI in a non-clinical sample. Method: The VOCI was administered to a large community sample (n = 445). Some participants also completed a battery including measures of OC behaviour, worry, anxiety and depression (n = 89) and were administered the VOCI twice at an 8-week interval (n = 46). Results: Confirmatory factor analyses replicated the six-correlated-factor structure originally found in a patient sample, but a more parsimonious, second-order-factor model showed a statistically higher fit, suggesting that VOCI subscales can be considered as facets of a higher-order OCD factor. The whole item pool and each of the subscales showed good internal consistency, unidimensionality, test-retest reliability and convergent construct validity. As in the original version, limited support for discriminant validity was found. Scores were weakly associated with age, gender and education. Conclusions: Although some key issues still need to be investigated (e.g. sensitivity to change), the VOCI seems to be a psychometrically sound instrument for the assessment of OCD-related behaviours and thoughts and can be used in cultural contexts different from the original.

Keywords

Obsessive-compulsive symptomspsychometricsmeasurement
Type
Research Article
Information
Behavioural and Cognitive Psychotherapy , Volume 39 , Issue 5 , October 2011 , pp. 561 - 577
Copyright
Copyright © British Association for Behavioural and Cognitive Psychotherapies 2011

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References

Abramowitz, J. S., Taylor, S. and McKay, D. (2009). Obsessive-compulsive disorder. Lancet, 374, 491–499.CrossRefGoogle ScholarPubMed
American Psychiatric Association (2000). Diagnostic and Statistical Manual of Mental Disorders (4th ed.). Washington, DC: American Psychiatric Association.Google Scholar
American Psychological Association (2002). Ethical principles of psychologists and code of conduct. American Psychologist, 57, 1060–1073.CrossRefGoogle Scholar
Beck, A. T., Epstein, N., Brown, G. and Steer, R. A. (1988). An inventory for measuring clinical anxiety: psychometric properties. Journal of Consulting and Clinical Psychology, 56, 893–897.CrossRefGoogle ScholarPubMed
Beck, A. T., Rush, A. J., Shaw, B. F. and Emery, G. (1979). Cognitive Therapy of Depression. New York: Guilford.Google Scholar
Beck, A. T., Rush, A. J., Shaw, B. F. and Emery, G. (1987). Terapia Cognitiva della Depressione. Torino: Boringhieri.Google Scholar
Beck, A. T. and Steer, R. A. (1993). Manual for the Beck Depression Inventory. San Antonio, TX: Psychological Corporation.Google Scholar
Bertolotti, G., Michielin, P., Sanavio, E., Simonetti, G., Vidotto, G. and Zotti, A. M. (1985). Cognitive Behavioural Assessment 2.0 – Scale Primarie. Firenze: Giunti O.S.Google Scholar
Brown, T. A. (2006). Confirmatory Factor Analysis for Applied Research. New York: The Guilford Press.Google Scholar
Burns, G. L., Formea, G. M., Keortge, S. and Sternberger, L. G. (1995). The utilization of non-patient samples in the study of obsessive compulsive disorder. Behaviour Research and Therapy, 33, 133–144.CrossRefGoogle Scholar
Burns, G. L., Keortge, S. G., Formea, G. M. and Sternberger, L. G. (1996). Revision of the Padua Inventory for obsessive compulsive disorder symptoms: distinctions between worry, obsessions, and compulsions. Behaviour Research and Therapy, 34, 163–173.CrossRefGoogle ScholarPubMed
Catalano, F., Sperandeo, R., Di Martino, S., Bartoli, L. and Maj, M. (1996). Insight e resistenza nei pazienti ossessivi. Giornale Italiano di Psicopatologia, 2, 126–132.Google Scholar
Cattell, R. B. (1966). The scree test for the number of factors. Multivariate Behavioral Research, 1, 245–276.CrossRefGoogle ScholarPubMed
Cohen, J. (1988). Statistical Power Analysis for the Behavioural Sciences (2nd ed.). Hillsdale, NJ: Lawrence Erlbaum Associates.Google Scholar
Cougle, J. R., Lee, H-J., Horowitz, J. D., Wolitzky-Taylor, K. B. and Telch, M. J. (2008). An exploration of the relationship between mental pollution and OCD symptoms. Journal of Behavior Therapy and Experimental Psychiatry, 39, 340–353.CrossRefGoogle ScholarPubMed
First, M. B. and Gibbon, M. (2004). The structured clinical interview for DSM-IV axis I disorders (SCID I) and the structured clinical interview for DSM-IV axis II disorders (SCID II). In Hisenroth, M. J. and Segal, D. L. (Eds.), Comprehensive Handbook of Psychological Assessment, vol. 2: personality assessment (pp.134–143). Hoboken, NJ: Wiley.Google Scholar
Foa, E. B., Huppert, J. D., Leiberg, S., Langner, R., Kichic, R., Hajcak, G., et al. (2002). The Obsessive–Compulsive Inventory: development and validation of a short version. Psychological Assessment, 14, 485–495.CrossRefGoogle ScholarPubMed
Foa, E. B., Kozak, M. J., Salkovskis, P. M., Coles, M. E. and Amir, N. (1998). The validation of a new obsessive-compulsive disorder scale: the Obsessive–Compulsive Inventory. Psychological Assessment, 10, 206–214.CrossRefGoogle Scholar
Fritzler, B. K., Hecker, J. E. and Losee, M. C. (1997). Self-directed treatment with minimal therapist contact: preliminary findings for obsessive-compulsive disorder. Behaviour Research and Therapy, 35, 627–631.CrossRefGoogle ScholarPubMed
Frost, R. O., Steketee, G. and Grisham, J. (2004). Measurement of compulsive hoarding: Saving Inventory−Revised. Behaviour Research and Therapy, 42, 1163–1182.CrossRefGoogle ScholarPubMed
Fullana, M. A., Tortella-Feliu, M., Caseras, X., Andión, Ó., Torrubia, R. and Mataix-Cols, D. (2005). Psychometric properties of the Spanish version of the Obsessive–Compulsive Inventory-Revised in a non-clinical sample. Journal of Anxiety Disorders, 19, 893–903.CrossRefGoogle Scholar
Goodman, W. K., Price, L.H., Rasmussen, S. A., Mazure, C., Fleischmann, R. L., Hill, C. L., Heninger, G. R. and Charney, D. S. (1989). The Yale-Brown Obsessive Compulsive Scale: I. development, use, and reliability. Archives of General Psychiatry, 46, 1006–1011.CrossRefGoogle ScholarPubMed
Grabill, K., Merlo, L., Duke, D., Harford, K.-L., Keeley, M. L., Geffken, G. R. and Storch, E. A. (2008). Assessment of obsessive-compulsive disorder: a review. Journal of Anxiety Disorders, 22, 1–17.CrossRefGoogle ScholarPubMed
Hajcak, G., Huppert, J. D., Simons, R. F. and Foa, E. B. (2004). Psychometric properties of the OCI-R in a college sample. Behaviour Research and Therapy, 42, 115–123.CrossRefGoogle Scholar
Hodgson, R. J. and Rachman, S. (1977). Obsessional–compulsive complaints. Behaviour Research and Therapy, 15, 389–395.CrossRefGoogle ScholarPubMed
Hu, L. and Bentler, P. (1999). Cut-off criteria for fit indices in covariance structure analysis: conventional criteria versus new alternatives. Structural Equation Modeling, 6, 1–55.CrossRefGoogle Scholar
Huppert, J .D., Walther, M .R., Hajcak, G., Yadin, E., Foa, E. B., Simpson, H. B., and Liebowitz, M. R. (2007). The OCI-R: validation of the subscales in a clinical sample. Journal of Anxiety Disorders, 21, 394–406.CrossRefGoogle Scholar
Kazdin, A. E. (1995). Preparing and evaluating research reports. Psychological Assessment, 7, 228–237.CrossRefGoogle Scholar
Krueger, R. F. and Piasecki, T. M. (2002). Toward a dimensional and psychometrically-informed approach to conceptualizing psychopathology. Behaviour Research and Therapy, 40, 485–499.CrossRefGoogle Scholar
Kyrios, M., Sanavio, E., Bhar, S. and Liguori, L. (2001). Associations between obsessive-compulsive phenomena, affect and beliefs: cross-cultural comparisons of Australian and Italian data. Behavioural and Cognitive Psychotherapy, 29, 409–422.CrossRefGoogle Scholar
Lattin, J., Carroll, D. J. and Green, P. E. (2003). Analyzing Multivariate Data. Pacific Grove, CA: Duxbury Press.Google Scholar
Lim, J. S., Kim, S. J., Jeon, W. T., Cha, K. R., Park, J. H. and Kim, C.-H. (2008). Reliability and validity of the Korean Version of Obsessive-Compulsive Inventory: revised in a non-clinical sample. Yonsei Medical Journal, 49, 909–916.CrossRefGoogle Scholar
Mataix-Cols, D., Rosario-Campos, M. C. and Leckman, J. F. (2005). A multidimensional model of obsessive-compulsive disorder. American Journal of Psychiatry, 162, 228–238.CrossRefGoogle ScholarPubMed
McCallum, R. C., Browne, M. W. and Sugawara, H. M. (1996). Power analysis and determination of sample size for covariance structure modeling. Psychological Methods, 1, 130–149.CrossRefGoogle Scholar
McKay, D., Abramowitz, J., Calamari, J., Kyrios, M., Radomsky, A., Sookman, D., Taylor, S. and Wilhelm, S. (2004). A critical evaluation of obsessive-compulsive disorder subtypes: symptoms versus mechanisms. Clinical Psychological Review, 24, 283–313.CrossRefGoogle ScholarPubMed
Meng, X.-.L., Rosenthal, R. and Rubin, D. B. (1992). Comparing correlated correlation coefficients. Psychological Bulletin, 111, 172–175.CrossRefGoogle Scholar
Meyer, T. J., Miller, M. L., Metzger, R. L. and Borkovec, T. D. (1990). Development and validation of the Penn State Worry Questionnaire. Behaviour Research and Therapy, 28, 487–495.CrossRefGoogle ScholarPubMed
Morani, S., Pricci, D. and Sanavio, E. (1999). Penn State Worry Questionnaire e Worry Domains Questionnaire: presentazione delle versioni italiane ed analisi della fedeltà. Psicoterapia Cognitiva e Comportamentale, 5, 195–209.Google Scholar
Moretz, M. W. and McKay, D. (2008). Disgust sensitivity as a predictor of obsessive-compulsive contamination symptoms and associated cognitions. Journal of Anxiety Disorders, 22, 707–715.CrossRefGoogle ScholarPubMed
Moretz, M. W. and McKay, D. (2009). The role of perfectionism in obsessive-compulsive symptoms: “not just right” experiences and checking compulsions. Journal of Anxiety Disorders, 23, 640–644.CrossRefGoogle ScholarPubMed
Muthén, B. O. and Kaplan, D. (1985). A comparison of some methodologies for the factor analysis of non-normal Likert variables. British Journal of Mathematical and Statistical Psychology, 38, 171–189.CrossRefGoogle Scholar
Muthén, B. O., du Toit, S. H. C. and Spisic, D. (1997). Robust Inference Using Weighted Least Squares and Quadratic Estimating Equations in Latent Variable Modeling with Categorical and Continuous Outcomes. Unpublished manuscript, available online at http://www.statmodel.com/papers.shtml.Google Scholar
Muthén, L. K. and Muthén, B. O. (1998–2007). Mplus User's Guide (5th edn.) Los Angeles, CA: Muthén & Muthén.Google Scholar
National Institute of Mental Health (NIMH) (2000). A Real Illness: obsessive-compulsive disorder. Bethesda, MD: National Institute of Mental Health, National Institutes of Health, US Department of Health and Human Services (NIH Publication No. 00-4676).Google Scholar
Nunnally, J. C. and Bernstein, L. H. (1994). Psychometric Theory (3rd edn.) New York: McGraw-Hill.Google Scholar
Rachman, S. and Hodgson, R. J. (1980). Obsessions and Compulsions. Englewood Cliffs, NJ: Prentice Hall.Google Scholar
Radomsky, A., Ouimet, A., Ashbaugh, A., Lavoie, S., Parrish, C. and O'Connor, K. (2006). Psychometric properties of the French and English versions of the Vancouver Obsessional-Compulsive Inventory and the Symmetry Ordering and Arranging Questionnaire. Cognitive Behaviour Therapy, 35, 164–173.CrossRefGoogle ScholarPubMed
Richter, M. A., Cox, B. J. and Direnfeld, D. M. (1994). A comparison of three assessment instruments for obsessive-compulsive symptoms. Journal of Behaviour Therapy and Experimental Psychiatry, 25, 143–147.CrossRefGoogle ScholarPubMed
Rosenfeld, R., Dar, R., Anderson, D., Kobak, K. and Greist, J. G. (1992). A computer-administered version of the Yale-Brown Obsessive Compulsive Scale. Psychological Assessment, 4, 329–332.CrossRefGoogle Scholar
Samuels, J. and Nestadt, G. (1997). Epidemiology and genetics of obsessive-compulsive disorder. International Review of Psychiatry, 9, 61–72.Google Scholar
Sanavio, E. (1988). Obsessions and compulsions: the Padua Inventory. Behaviour Research and Therapy, 26, 169–177.CrossRefGoogle ScholarPubMed
Sica, C., Coradeschi, D., Ghisi, M. and Sanavio, E. (2006). Beck Anxiety Inventory. BAI. Manuale. Firenze: Giunti O.S.Google Scholar
Sica, C., Ghisi, M., Altoè, G., Chiri, L. R., Franceschini, S., Coradeschi, D. and Melli, G. (2009). The Italian version of the Obsessive Compulsive Inventory: its psychometric properties on community and clinical samples. Journal of Anxiety Disorders, 23, 204–211.CrossRefGoogle ScholarPubMed
Thordarson, D. S., Radomsky, A. S., Rachman, S., Shafran, R., Sawchuck, C. N. and Hakstian, A. R. (2004). The Vancouver Obsessional Compulsive Inventory (VOCI). Behaviour Research and Therapy, 42, 1289–1314.CrossRefGoogle ScholarPubMed
Velicer, W. F. (1976). Determining the number of factors from the matrix of partial correlations. Psychometrika, 41, 321–327.CrossRefGoogle Scholar
Wittchen, H. and Jacobi, B. (2005). Size and burden of mental disorders in Europe: a critical review and appraisal of 27 studies. European Neuropsychopharmacology, 15, 357–376.CrossRefGoogle ScholarPubMed
Wu, K. D. and Watson, D. (2003). Further investigation of the obsessive-compulsive inventory: psychometric analysis in two non-clinical samples. Anxiety Disorders, 17, 305–319.CrossRefGoogle ScholarPubMed
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