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Cognitive Therapy and Research

, Volume 37, Issue 3, pp 595–604 | Cite as

Development of an Inventory to Measure Specific Phobia of Vomiting (Emetophobia)

  • David VealeEmail author
  • Nell Ellison
  • Mark J. Boschen
  • Ana Costa
  • Chantelle Whelan
  • Francesca Muccio
  • Kareina Henry
Original Article

Abstract

Assessment options are extremely limited for the evaluation of treatment outcome in a specific phobia of vomiting (emetophobia). We aimed to assist researchers and clinicians in the measurement of cognitive processes and behaviors that are characteristic of the disorder for treatment planning and outcome measurement. We developed the specific phobia of vomiting inventory (SPOVI). A series of measures, including the SPOVI, were given to two groups: a group diagnosed with a specific phobia of vomiting and a community control group. Item characteristics, reliability, and factor structure were analysed. Convergent validity with measures of related constructs was determined. The SPOVI was found to have good reliability and validity in the measurement of a phobia of vomiting. The scale has a two-factor structure, with one factor characterised by avoidance symptoms and a second factor comprised of threat monitoring. It is sensitive to change during treatment. The results provide initial evidence of the psychometric qualities of the SPOVI and its suitability for use in clinical practice and research.

Keywords

Specific phobia Vomiting Inventory Questionnaire, emetophobia 

Notes

Conflict of interest

None.

References

  1. American Psychiatric Association. (1994). Diagnostic and statistical manual of mental disorders (4th ed.). Washington, DC: Author.Google Scholar
  2. Antony, M. M. (2001). Measures for specific phobia. In M. M. Antony, S. M. Orsillo, & L. Roener (Eds.), Practitioner’s guide to empirically based measures of anxiety (pp. 133–158). New York: Kluwer.Google Scholar
  3. Becker, E. S., Rinck, M., Türke, V., Kause, P., Goodwin, R., Neumer, S., et al. (2007). Epidemiology of specific phobia subtypes: Findings from the Dresden Mental Health Study. European Psychiatry, 22, 69–74.PubMedCrossRefGoogle Scholar
  4. Boschen, M. J. (2007). Reconceptualizing emetophobia: A cognitive-behavioral formulation and research agenda. Journal of Anxiety Disorders, 21, 407–419.PubMedCrossRefGoogle Scholar
  5. Boschen, M. J., Veale, D., Ellison, N., & Reddell, T. (in submission). The emetophobia questionnaire (EmetQ-13): Psychometric validation of a measure of specific phobia of vomiting. Manuscript submitted for publication.Google Scholar
  6. Boschen, M. J., & Oei, T. P. S. (2006). Factor structure of the mood and anxiety symptom questionnaire does not generalize to an anxious/depressed sample. Australian and New Zealand Journal of Psychiatry, 40, 1017–1026.CrossRefGoogle Scholar
  7. Clark, D. M., Layard, R., Smithies, R., Richards, D. A., Suckling, R., & Wright, B. (2009). Improving access to psychological therapy: Initial evaluation of two UK demonstration sites. Behaviour Research and Therapy, 47, 910–920.PubMedCrossRefGoogle Scholar
  8. Foa, E. B., Kozak, M. J., Salkovskis, P. M., Coles, M. E., & Amir, N. (1998). The validation of a new obsessive-compulsive disorder scale: The obsessive compulsive inventory. Psychological Assessment, 10, 206–214.CrossRefGoogle Scholar
  9. Haidt, J., McCauley, C., & Rozin, P. (1994). Individual differences in sensitivity to disgust: A scale sampling seven domains of disgust elicitors. Personality and Individual Differences, 16, 701–713.CrossRefGoogle Scholar
  10. Harvey, A., Watkins, E., Mansell, W., & Shafran, R. (2004). Cognitive behavioural processes across psychological disorders: A trans-diagnostic approach to research and treatment. Oxford: University Press.Google Scholar
  11. Horn, J. (1965). A rationale and test for the number of factors in factor analysis. Psychometrika, 30, 179–185.PubMedCrossRefGoogle Scholar
  12. Hunter, P. V., & Antony, M. M. (2009). Cognitive-behavioral treatment of emetophobia: The role of interoceptive exposure. Cognitive and Behavioral Practice, 16, 84–91.CrossRefGoogle Scholar
  13. Jacobsen, N. S., Roberts, L. J., Berns, S. B., & McGlinchey, J. B. (1999). Methods of defining and determining the clinical significance of treatment effects: Description, application, & alternatives. Journal of Consulting and Clinical Psychology, 67, 300–307.CrossRefGoogle Scholar
  14. Kirkpatrick, D. R., & Berg, A. J. (1981). Fears of a heterogeneous non-psychiatric sample. Paper presented at the Annual Conference of the American Psychological Association. Los Angeles, CA.Google Scholar
  15. Kroenke, K., & Spitzer, R. L. (2002). The PHQ-9: A new depression diagnostic and severity measure. Psychiatric Annals, 32, 509–515.Google Scholar
  16. Lesage, A., & Lamontagne, Y. (2003). Paradoxical intention and exposure in vivo in the treatment of psychogenic nausea: Report of two cases. Behavioural Psychotherapy, 13, 69–75.CrossRefGoogle Scholar
  17. Lipsitz, J. D., Fyer, A. J., Paterniti, A., & Klein, D. F. (2001). Emetophobia: Preliminary results of an internet survey. Depression and Anxiety, 14, 149–152.PubMedCrossRefGoogle Scholar
  18. Lorenzo-Seva, U., & Ferrando, P. J. (2006). FACTOR: A computer programme to fit the exploratory factor analysis model. Behavioral Research Methods, Instruments and Computers, 38, 88–91.CrossRefGoogle Scholar
  19. Manassis, K., & Kalman, E. (1990). Anorexia resulting from fear of vomiting in four adolescent girls. Canadian Journal of Psychiatry, 35, 548–550.Google Scholar
  20. McFadyen, M., & Wyness, J. (1983). You don’t have to be sick to be a behaviour therapist but it can help! Treatment of a “Vomit” Phobia. Behavioural Psychotherapy, 11, 173–176.CrossRefGoogle Scholar
  21. McKenzie, S. (1994). Hypnotherapy for vomiting phobia in a 40 year old woman. Contemporary Hypnosis, 11, 37–40.Google Scholar
  22. Moran, D. J., & O’Brien, R. M. (2005). Competence imagery: A case study treating emetophobia. Psychological Reports, 96, 635–636.PubMedCrossRefGoogle Scholar
  23. Mundt, J. C., Marks, I. M., Shear, M. K., & Greist, J. H. (2002). The work and social adjustment scale: A simple measure of impairment in functioning. British Journal of Psychiatry, 180, 461–464.PubMedCrossRefGoogle Scholar
  24. O’Connor, J. J. (1983). Why can’t I get hives: Brief strategic therapy with an obsessional child. Family Process, 22, 201–209.PubMedCrossRefGoogle Scholar
  25. Olatunji, B. O., Williams, N. L., Tolin, D. F., Abramowitz, J. S., Sawchuk, C. N., Lohr, J. M., et al. (2007). The disgust scale: Item analysis, factor structure, and suggestions for refinement. Psychological Assessment, 19, 281–297.PubMedCrossRefGoogle Scholar
  26. Philips, H. C. (1985). Return of fear in the treatment of a fear of vomiting. Behaviour Research and Therapy, 23, 45–52.PubMedCrossRefGoogle Scholar
  27. Price, K., Veale, D., & Brewin, C. R. (2012). Intrusive imagery in people with a specific phobia of vomiting. Journal of Behavior Therapy and Experimental Psychiatry, 43, 672–678.PubMedCrossRefGoogle Scholar
  28. Reddell, T. (2006). Developing the Emetophobia Questionnaire (Unpublished honours thesis). Australia: Griffith University.Google Scholar
  29. Ritow, J. K. (1979). Brief treatment of a vomiting phobia. American Journal of Clinical Hypnosis, 21, 293–296.PubMedCrossRefGoogle Scholar
  30. Salkovskis, P. M., Rimes, K. A., Warwick, H. M. C., & Clark, D. M. (2002). The health anxiety inventory: Development and validation of scales for the measurement of health anxiety and hypochondriasis. Psychological Medicine, 32, 843–853.PubMedCrossRefGoogle Scholar
  31. Spitzer, R. L., Kroenke, K., Williams, J. B. W., & Löwe, B. (2006). A brief measure for assessing generalized anxiety disorder: The GAD-7. Archives of Internal Medicine, 166, 1092–1097.PubMedCrossRefGoogle Scholar
  32. van Overveld, M., de Jong, P. J., Peters, M. L., van Hout, W. J. P. J., & Bouman, T. K. (2008). An internet-based study on the relation between disgust sensitivity and emetophobia. Journal of Anxiety Disorders, 22, 524–531.PubMedCrossRefGoogle Scholar
  33. Veale, D. (2009). Cognitive behaviour therapy for a specific phobia of vomiting. The Cognitive Behaviour Therapist, 2, 272–288.CrossRefGoogle Scholar
  34. Veale, D., Costa, A., Murphy, P., & Ellison, N. (2012a). Abnormal eating behaviour in people with a specific phobia of vomiting (emetophobia). European Eating Disorders Review, 20, 414–418.PubMedCrossRefGoogle Scholar
  35. Veale, D., & Lambrou, C. (2006). The psychopathology of vomit phobia. Behavioural and Cognitive Psychotherapy, 34, 139–150.CrossRefGoogle Scholar
  36. Veale, D., Murphy, P., Ellison, N., Kanakam, N., & Costa, A. (2012b). Auto-biographical memories in people with a specific phobia of vomiting. Journal of Behaviour Therapy and Experimental Psychiatry, 44, 14–20.CrossRefGoogle Scholar
  37. Wijesinghe, B. (1974). A vomiting phobia overcome by one session of flooding with hypnosis. Journal of Behavior Therapy and Experimental Psychiatry, 5, 169–170.CrossRefGoogle Scholar
  38. Wilson, P., & Cooper, C. (2008). Finding the magic number. The Psychologist, 21, 866–867.Google Scholar
  39. Wolitzky-Taylor, K. B., Horowitz, J. D., Powers, M. B., & Telch, M. J. (2008). Psychological approaches in the treatment of specific phobias: A meta-analysis. Clinical Psychology Review, 28, 1021–1037.PubMedCrossRefGoogle Scholar
  40. Zimmerman, M., & Mattia, J. I. (2001). A self-report scale to help make psychiatric diagnoses: The psychiatric diagnostic screening questionnaire. Archives of General Psychiatry, 58, 781–794.CrossRefGoogle Scholar
  41. Zwick, W. R., & Velicer, W. F. (1986). Comparison of five rules for determining the number of components to retain. Psychological Bulletin, 99, 432–442.CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 2012

Authors and Affiliations

  • David Veale
    • 1
    • 4
    Email author
  • Nell Ellison
    • 1
  • Mark J. Boschen
    • 1
    • 2
    • 3
  • Ana Costa
    • 1
  • Chantelle Whelan
    • 1
  • Francesca Muccio
    • 1
  • Kareina Henry
    • 1
  1. 1.NIHR Specialist Biomedical Research Centre for Mental Health at the South London and Maudsley NHS Foundation Trust and The Institute of PsychiatryKing’s College LondonLondonUK
  2. 2.Griffith Health InstituteGriffith UniversityBrisbaneAustralia
  3. 3.School of PsychologyGriffith UniversityBrisbaneAustralia
  4. 4.Centre for Anxiety DisordersThe Maudsley HospitalLondonUK

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