Abstract
The Illness Intrusiveness Rating Scale (IIRS) is a measure designed to assess the impact of illness on various domains of functioning (G. M. Devins, 1994). In anxiety disordered patients, illness intrusiveness ratings are higher than those of chronically ill medical patients, suggesting that the IIRS may have a different underlying structure in a sample of individuals with anxiety disorders. To examine this possibility, IIRS items were submitted to an exploratory and confirmatory factor analysis in 2 samples (total N = 294). These solutions were compared to solutions in chronically ill populations from a previous study. In the exploratory analysis, both a one-factor and a three-factor solution were identified, accounting for 42 and 61% of the variance, respectively. Confirmatory analyses showed adequate similarity between the three-factor structure of the IIRS from a medically ill population and the current three-factor structure, suggesting that elevated IIRS scores in anxiety disordered samples cannot be explained simply by a different structure of the instrument.
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REFERENCES
Aikake, H. (1987). Factor analysis and AIC. Psychometrika, 52, 317-332.
Antony, M. M., Bieling, P. J., Cox, B. J., Enns, M. W., & Swinson, R. P. (1998). Psychometric properties of the 42-item and 21-item versions of the Depression Anxiety Stress Scales in clinical groups and a community sample. Psychological Assessment, 10, 176-181.
Antony, M. M., Roth, D. A., Swinson, R. P., Huta, V., & Devins, G. M. (1998). Illness intrusiveness in individuals with panic disorder, obsessive-compulsive disorder, or social phobia. Journal of Nervous and Mental Disease, 186, 311-315.
Arbuckle, J. (1992). Getting started with AmosDraw under Windows. Unpublished manuscript, Temple University, Philadelphia.
Beck, A. T., Rush, A. J., Shaw, B. F., & Emery, G. (1979). Cognitive therapy of depression: A treatment manual. New York: Guilford.
Beck, A. T., Steer, R. A., & Garbin, M. G. (1988). Psychometric properties of the Beck Depression Inventory: Twenty five years of evaluation. Clinical Psychology Review, 8, 77-100.
Bienvenu, O. J., Nestadt, G., Samuels, J. F., Costa, P. T., Howard, W. T., & Eaton, W.W. (2001). Phobic, panic, and major depressive disorders and the five-factor model of personality. Journal of Nervous and Mental Disease, 189, 154-161.
Bozdogan, H. (1987). Model selection and Aikake's information criterion (AIC): The general theory and its analytical extensions. Psychometrika, 52, 345-370.
Browne, M.W., & Cudeck, R. (1989). Single sample cross-validation indices for covariance structures. Multivariate Behavioral Research, 24, 445-455.
Burns, D. D., & Eidelson, R. J. (1998). Why are depression and anxiety correlated: A test of the tripartite model. Journal of Consulting and Clinical Psychology, 66, 461-473.
Cattel, R. B. (1966). The scree test for number of factors. Multivariate Behavior Research, 1, 245-276.
Clark, L. A., & Watson, D. (1991). Tripartite model of anxiety and depression: Psychometric evidence and taxonomic implications. Journal of Abnormal Psychology, 100, 316-336.
Devins, G. M. (1994). Illness intrusiveness and the psychosocial impact of lifestyle disruptions in chronic life-threatening disease. Advances in Renal Replacement Therapy, 1, 251-263.
Devins, G. M., Beanlands, H., Mandin, H., & Paul, L. C. (1997). Psychosocial impact of illness intrusiveness moderated by selfconcept and age in end-stage renal disease. Health Psychology, 16, 529-538.
Devins, G. M., Dion, R., Pelletier, L., Shapiro, C. M., Abbey, S., Raiz, L. R., McGowan, P., Kutner, N. G., Beanlands, H., & Edworthy, S. M. (2001). The structure of lifestyle disruptions in chronic disease: A confirmatory factor analysis of the Illness Intrusiveness Ratings Scale. Medical Care, 39, 1097-1104.
Devins, G. M., Edworthy, S. M., Guthrie, N. G., & Martin, L. (1992). Illness intrusiveness in rheumatoid arthritis: Differential impact on depressive symptoms over the adult lifespan. Journal of Rheumatology, 19, 709-715.
Devins, G. M., Edworthy, S. M., Seland, T. P., Klein, G. M., Paul, L. C., & Mandin, H. (1993). Differences in illness intrusiveness across rheumatoid arthritis, end-stage renal disease, and multiple sclerosis. Journal of Nervous and Mental Disease, 181, 377-381.
Devins, G. M., Mandin, H., Hons, R. B., Burgess, E. D., Klassen, J., Taub, K., Schorr, S., Letourneau, P. K., & Buckle, S. (1990). Illness intrusiveness and quality of life in end-stage renal disease: Comparison and stability across treatment modalities. Health Psychology, 9, 117-142.
Devins, G. M., Seland, T. P., Klein, G., Edworthy, S. M., & Saary, M. J. (1993). Stability and determinants of psychosocial well-being in multiple sclerosis. Rehabilitation Psychology, 38, 11-26.
Devins, G. M., Stam, H. J., & Koopmans, J. P. (1994). Psychosocial impact of laryngectomy mediated by perceived stigma and illness intrusiveness. Canadian Journal of Psychiatry, 39, 608-616.
First, M. B., Spitzer, R. L., Gibbon, M., & Williams, J. B. W. (1996). Structured Clinical Interview for DSM-IV Axis I Disorders-Patient Edition (SCID-I/P, Version 2.0). New York: Biometrics Research Department, New York State Psychiatric Institute.
Hollifield, M., Katon, W., Skipper, B., Chapman, T., Ballenger, J. C., Mannuzza, S., & Fyer, A. J. (1997). Panic disorder and quality of life: Variables predictive of functional impairment. American Journal of Psychiatry, 154, 766-772.
Jorm, A. F., Christensen, H., Henderson, A. S., Jacomb, P. A., Korten, A. E., & Rodgers, B. (2000). Predicting anxiety and depression from personality: Is there a synergistic effect of neuroticism and extraversion? Journal of Abnormal Psychology, 109, 145-149.
Lovibond, S. H., & Lovibond, P. F. (1995). Manual for the Depression Anxiety Stress Scales (2nd ed.). Sydney: Psychology Foundation.
Mulaik, S. A., James, L. R., Van Alstine, J., Bennett, N., Lind, S., & Stilwell, C. D. (1989). Evaluation of goodness of fit indices for structural equation models. Psychological Bulletin, 105, 430-445.
Robb, J. C., Cooke, R. G., Devins, G. M., Young, L. T., & Joffe, R. T. (1997). Quality of life and lifestyle disruption in bipolar disorder. Journal of Psychiatric Research, 31, 509-517.
Rowa, K., Antony, M. M., Brar, S., Summerfeldt, L. J., & Swinson, R. P. (2000). Treatment histories of patients with three anxiety disorders. Depression and Anxiety, 12, 92-98.
Schneier, F. R., Heckelman, L. R., Garfinkel, R., Campeas, R., Fallon, B. A., Gitow, A., Street, L., Del Bene, D., Liebowitz, M. R. (1994). Functional impairment in social phobia. Journal of Clinical Psychiatry, 55, 322-331.
Stein, M. B., & Kean, Y. M. (2000). Disability and quality of life in social phobia: Epidemiologic findings. American Journal of Psychiatry, 157, 1606-1613.
Tanaka, J. S., & Huba, G. J. (1984). Confirmatory hierarchical analyses of psychological distress measures. Journal of Personality and Social Psychology, 46, 621-635.
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Bieling, P.J., Rowa, K., Antony, M.M. et al. Factor Structure of the Illness Intrusiveness Rating Scale in Patients Diagnosed with Anxiety Disorders. Journal of Psychopathology and Behavioral Assessment 23, 223–230 (2001). https://doi.org/10.1023/A:1012723318964
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DOI: https://doi.org/10.1023/A:1012723318964