the psychometric properties of the Generalized Anxiety Disorder Questionnaire-IV

Document Type : Research Paper

Authors

• F bita
• N Mohamadi

shiraz university

Abstract

Introduction:The present study examined the psychometrics particularity of Generalized Anxiety Disorder Questionnaire-IV (GAD-QIV) in Iran.
Method: This study was correlation design.This examination conducted in two phases: The first phase conducted on 221 student of Shiraz University ,the second conducted on 40 patient with generalized anxiety disorder that com in to shiraz univercity counciling center and Imam Reza Specialist Clinic in Shiraz and 40 normal participants. Measuring instruments were Generalized Anxiety Disorder Questionnaire-IV, Pennsylvania State Worry Questionnaire and Beck anxiety Inventory.
Results: The first finding demonstrated Internal consistency (Cronbach’s alpha =0/79) for GADQ-IV. The second finding showed convergent validity (r=0/61, 0/45) and discriminant validity (r=0/88). In addition A cutoff of 5.95 leads to sensitivity of 97% and specificity of 94%. The result of Confirmatory factor analysis show the fitness of one-factor model.
Conclusion: Generalized Anxiety Disorder Questionnaire-IV have appropriate reliability and validity and are suitable scales for research , clinical applications in Iran.

Keywords

• Reliability
• validity
• Recognition
• Generalized Anxiety Disorder

20.1001.1.22285516.1396.8.29.5.4

---

References

-                   Abbasi, I., Fati, L., Moloodi, R. and Zarabi, H. (2012) Psychometric adequacy of acceptance and practice questionnaire of second edition. Methods and Psychological Models, Second Year, No. 10, pp. 65-80.

-                   Abdi, R.; Bakhshi, A. and Alilu, M. M. (2013). The Effectiveness of Integrated Diagnostic Factors in Reducing the Severity of Fractase-Induced Factors and Symptoms of Emotional Disorders, Methods and Psychological Models, Third Year, No. 13, pp. 1-27.

-                   Aldao, A., Mennin, D. S., Linardatos, E. & Fresco, D. M. (2010). Differential patterns of physical symptoms and subjective processes in generalized anxiety disorder and unipolar depression. Journal of Anxiety Disorders, 24, 250–259.

-                   Beck, A. T Amari, Garry and Green Leah, Roth. L (2004). The cognitive model of anxiety and fear. Translated by Pasalari Behjani, Abdolrasoul, Tehran: Young Scientists, First Edition (Original Publication Date 1985), pp. 153-154.

-                   Beck, A. T. & Clarck, D. A. (1988). Anxiety and depression an information processing perspective. Anxiety reaserch, 1, 23-36.

-                   Beck, A. T., Epstein, N., Brown, G. & Steer, R. A. (1988). An inventory for measuring clinical anxiety: Psychometric properties. Journal of Consulting and Clinical Psychology, 56, 893-897.

-                   Borkovec, T. D., & Newman, M. G. (1998). Worry and generalized anxiety disorder. In P. Salkovskis, A. S. Bellack, & M. Hersen (Eds.), Comprehensive clinical psychology (Vol. 6, pp 439-459). New York: Pergamon Press.

-                   Brown, T. A., Di Nardo, P. A., Lehman, C. L., & Campbell, L. A. (2001). Reliability of DSM-IV anxiety and mood disorders: Implications for the classification of emotional disorders. Journal of Abnormal Psychology, 110, 49-58.

-                   Clark, D., Farborn, M. and Christopher, J. (1385). Cognitive-behavioral therapies. Translation of Kaviani, Hossein, Tehran: Mehr Kavian, First Edition, (Date of publication in original language 1954), pp. 228-230.

-                   Cartwright-Hatton, S., & Wells, A. (1997). Beliefs about worry and intrusions. The Meta- Cognitions Questionnaire and its correlates. Journal of Anxiety Disorders, 11,279-296.

-                   Clarck, D. A. & Beck, A. T. (2010). Cognitive therapy of anxiety disorder: science and practice. 9th ed, New York: The Guilford Press: pp.389-390.

-                   Comer, J. S. & Olfson, M. (2010). Evolving concepts of anxiety The epidemiology of anxiety disorders. In Simpson, H. B., Neria, Y., Lewis-Fernández, R. & Schneier, F. (Eds.), Anxiety Disorders: Theory, Research, and Clinical Perspectives. Cambridge: Cambridge University Press : 6-20.

-                   Dadsetan, P.  (2008). Childhood and Adult Disease Psychology (Vol. I). Tehran: Publications of the Organization for the Study and Compilation of Human Sciences Books of Universities (samt), 59-62.

-                   Davey, G. C. L., Tallis, F., & Capuzzo, N. (1996). Beliefs about the consequences of worrying. Cognitive Therapy and Research, 20,499-520.

-                   Dehshiri, Gh., Golzari, M., Barajali, A. & Sohrabi, F. (2009) Psychometric Properties of the Persian Version of the Pennsylvania state Worries Questionnaire in Students. Journal of Clinical Psychology, 1, 4, 67-75.

-                   Dozis, D. J. A. & Dobson, K. S. (2005). The prevention of anxiety and depression: theory, research and practice. Washington: American psychological Association.

-                   Dugas, M. J. & Robichaud, M. (2007). Cognitive-Behavioral Treatment for Generalized Anxiety Disorder: From Science to Practice. 10th ed, New York: Routledge: 12-47.

-                   Freeston, M. H., Rheaume, J., Letarte, H., Dugas, M. J., & Ladouceur, R. (1994). Why do people worry? Personality and Individual Differences, 17, 791 - 802.

-                   Huppert, J. D. & Rynn, M. Generalized Anxiety Disorder. (2004). In D. J. Stein (Ed.), Clinical Manual of Anxiety Disorders (pp.147-155). London: American Psychiatric Publishing.

-                   Kazemi, H. (2003). Comparison of cognitive distortions in anxious and depressed patients of Shiraz University; Master thesis.

-                   Kawani, H., Ahmadi abhari, S.A., Dehqan, M., Mansoornia, M. A., Khurram Shahi, M., Qadir Zada, M. R., Dadpai, A. and Charardi, A. (1381). Prevalence of Anxiety Disorders in Tehran City. IJPCP (Sciences of Scientific Sciences of Iran) 2003; 8 (3) :4-11.

-                   Llera, S. J. & Newman M. G. (2010). Effects of worry on physiological and subjective reactivity to emotional stimuli in generalized anxiety disorder and nonanxious control participants. Emotion, 10(5) , 640–650.

-                   Mennin, D. S., Heimberg, R. G., & Turk, C. L. (2004). Clinical presentation and diagnostic features. In R. G. Heimberg, C. L. Turk, & D. S. Mennin (Eds.), Generalized anxiety disorder: Advances in research and practice (pp.3-28.). New York: The Guilford press.

-                   Meyer, T. J., Miller, M. L., Metzger, R. L., & Borkovec, T. D. (1990). Development and validation of the Penn State Worry Questionnaire. Behaviour Research and Therapy, 28, 487-495.

-                   Newman, M. G., Zuellig, A. R., Kachin, K. E., Constantino, M. J., Przeworski, A., Erickson, T. & Cashman-McGrath, L. (2002). Prelim-inary reliability and validity of the generalized anxiety disorder questionnaire-IV: A revised self-report diagnostic measure of generalized anxiety disorder. Behavior Therapy, 33, 215–233.

-                   Papp, L. A., Gorenstein, E. E. & Mohlman, J. (2010). Treatment of late-life generalized anxiety disorder. In H. B. Simpson, Y. Neria, R. Lewis-Fernández & F. Schneier. Anxiety Disorders: Theory, Research, and Clinical Perspectives, Cambridge: Cambridge University Press : pp297-304.

-                   Revicki, D. A., Brandenburg, N., Matza, L., Hornbrook, M. C. & Feeny, D. (2008). Health-related quality of life and utilities in primary-care patients with generalized anxiety disorder. Qual Life Res , 17, 1285–1294.

-                   Reyes, A. D. L., Aldao, A., Kundey, S. M. A., Lee , B. G. & Molina, S. (2012). Compromised Decision Making and the Effects of Manipulating Physical States on Human Judgments. Journal of Clinical Psychology, 68, 1, 1-7.

-                   Rodebaugh, T. L., Holaway, R. M. & Heimberg, R. G. (2008). The Factor Structure and Dimensional Scoring of the Generalized Anxiety Disorder Questionnaire for DSM-IV. Assessment, 15, 3, 343-350.

-                   Roemer, L., Borkovec, M., Posa, S., & Borkovec, T. D. (1995). A self-report measure of generalized anxiety disorder. Journal of Behavior Therapy and Experimental Psychiatry, 26, 345–350.

-                   Saduk, B. and Saduk, V. (2006). Kaplan Saduk's synopsis of paychiatry: behavioral Sciences - Clinical Psychiatry9 th ed (Vol. 2, Nusrat Allahpour, Afkari). Tehran: Water City Publishing (Date of publication in Main language 2003), 245-247.

-                   Samani, S.; Sohrabi Shahefi, N. & Mansouri, S. S. (2011) The role of mediating cognitive emotion regulation for parental style and emotional problems, methods and psychological models, Year 1, No. 3, pp. 119-133.

-                   Weeks, J. W., Heimberg, R. G. & Rodebaugh, T. L. (2008). The Fear of Positive Evaluation Scale: Assessing a proposed cognitive component of social anxiety. Journal of Anxiety Disorders, 22 , 44–55.

-                   Wittchen, H-U. (2002). generalized anxiety disorder: prevalence, burden, and cost to society. Depression and Anxiety, 16, 162–171.

-                   Wittchen, H-U., and Hoyer, J. (2001). Generalized Anxiety Disorder: Nature and Course. Journal Clinical Psychiatry, 62, 15–19.

-                   Yonkers, K. A., Dyck, I. R., Warshaw, M. & Keller, M. B. (2000). Factors predicting the clinical course of generalised anxiety disorder. The British Journal of Psychiatry, 176, 544-549.