Psychometric Characteristics of the Persian Version of the Injustice Experience Questionnaire
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The present study aimed to determine the psychometric characteristics of the Persian version of the Injustice Experience Questionnaire (IEQ-P). Data were collected from 230 participants (122 females and 108 males between 20 and 60 years of age) with chronic musculoskeletal pain. Principal component analysis was used to test the factor structure of the questionnaire. Construct validity was assessed by investigating Pearson correlations among the IEQ-P and other related questionnaires. Internal consistency was indicated by Cronbach’s alpha, and test-retest reliability was examined through the intraclass correlation coefficient (ICC) in 48 participants within a three-week period. To examine the differences in the IEQ-P total scores by categorical independent variables, the Kruskal-Wallis test was used. A two-component solution was yielded with good internal consistency (Cronbach’s alpha .86). The IEQ-P was correlated significantly with the Pain Catastrophizing Scale (PCS), r = .62, p < .01; McGill Pain Questionnaire (MPQ), r = .44, p < .01; Pain Disability Index (PDI), r = .5, p < .01; Tampa Scale for Kinesiophobia (TSK), r = .48, p < .01; and Beck Depression Inventory II (BDI-II), r = .4, p < .01. Regression analyses revealed that the IEQ-P contributed significant unique variance to the prediction of pain severity, β = .28, p < .001; self-report disability; β = .26, p < .001; and depression, β = .21, p < .001. The obtained results demonstrated an excellent test-retest reliability (ICC = .95). Age, duration of pain, occupation, and educational level were related to the IEQ-P total scores. The IEQ-P was found to be a reliable and valid assessment tool.
KeywordsPersian Injustice experience questionnaire Perceived injustice Reliability Validity Chronic musculoskeletal pain
Authors are grateful to Dr. Sullivan for giving generous permission to use the questionnaire and his active cooperation in back translation. His constructive comments are greatly appreciated, as well. Furthermore, we appreciate Hooman Hamraahi’s contribution to the questionnaire translation. We thank all the participants and, especially, Shamsi Termebaf and Afrouz Amini for their assistance in collecting the data.
Compliance with Ethical Standards
Conflict of Interest
The authors declare that they have no conflict of interest.
All procedures followed were in accordance with the ethical standards of the responsible committee on human experimentation (national and institutional). Informed consent was obtained from all individual subjects participating in the study. This study was IRB approved.
Informed written consent was obtained from all participants before being included in the study.
- Beck, A. T., Steer, R. A., & Brown, G. K. (1996). Beck Depression Inventory-II. San Antonio, 78(2), 490–498.Google Scholar
- Carriere, J. S., Thibault, P., Adams, H., Milioto, M., Ditto, B., & Sullivan, M. J. L. (2017). Expectancies mediate the relationship between perceived injustice and return to work following whiplash injury: A 1-year prospective study. European Journal of Pain, 21(7), 1234–1242. https://doi.org/10.1002/ejp.1023.Google Scholar
- Giummarra, M. J., Cameron, P. A., Ponsford, J., Ioannou, L., Gibson, S. J., Jennings, P. A., & Georgiou-Karistianis, N. (2017). Return to work after traumatic injury: increased work-related disability in injured persons receiving financial compensation is mediated by perceived injustice. Journal of Occupational Rehabilitation, 27(2), 173–185. https://doi.org/10.1007/s10926-016-9642-5.Google Scholar
- Ioannou, L. J., Cameron, P. A., Gibson, S. J., Gabbe, B. J., Ponsford, J., Jennings, P. A., Arnold, C. A., Gwini, S. M., Georgiou-Karistianis, N., & Giummarra, M. J. (2017). Traumatic injury and perceived injustice: fault attributions matter in a "no-fault" compensation state. PLoS One, 12(6), e0178894. https://doi.org/10.1371/journal.pone.0178894.Google Scholar
- Khosravi, M., Sadighi, S., Moradi, S., & Zendehdel, K. (2014). Translation, adaptation and reliability of Persian-McGill Pain Questionnaire (P-MPQ) in Iranian Cancer Patients. Basic & Clinical Cancer Research, 6(3), 12–17.Google Scholar
- Leong, F. T. L., Park, Y. S., & Leach, M. M. (2013). Ethics in psychological testing and assessment. In K. F. Geisinger, B. A. Bracken, J. F. Carlson, J. I. C. Hansen, N. R. Kuncel, S. P. Reise, et al. (Eds.), APA handbook of testing and assessment in psychology (Vol. 22, pp. 278–279). Washington, DC: American Psychological Association.Google Scholar
- Marbouti, L., Jafari, H., Noorizadeh-Dehkordi, S., & Behtash, H. (2011). Pain-related disability measurement: the cultural adaptation and validation of “pain disability index (PDI)” and “pain disability questionnaire (PDQ)” among Iranian low back pain patients. Medical Journal of The Islamic Republic of Iran (MJIRI), 25(1), 27–34.Google Scholar
- Melzack, R., & Torgerson, W. S. (1971). On the language of pain. Anesthesiology, 34(1), 50–59.Google Scholar
- Miller, M. M., Scott, E. L., Trost, Z., & Hirsh, A. T. (2016). Perceived injustice is associated with pain and functional outcomes in children and adolescents with chronic pain: a preliminary examination. The Journal of Pain, 17(11), 1217–1226. https://doi.org/10.1016/j.jpain.2016.08.002.Google Scholar
- Miller, R. P., Kori, S. H., & Todd, D. D. (1991). The Tampa Scale: a Measure of Kinisophobia [Abstract]. The Clinical Journal of Pain, 7(1), 51.Google Scholar
- Morey, L. C. (2003). Measuring personality and psychopathology. In I. B. Weiner, J. A. Schinka, & W. F. Velicer (Eds.), Handbook of psychology (Vol. 2, pp. 388–399). New Jersey: John Wiley & Sons.Google Scholar
- Pâquet, M., Bois, K., Rosen, N. O., Mayrand, M.-H., Charbonneau-Lefebvre, V., & Bergeron, S. (2016). Why us? Perceived injustice is associated with more sexual and psychological distress in couples coping with genito-pelvic pain. The Journal of Sexual Medicine, 13(1), 79–87. https://doi.org/10.1016/j.jsxm.2015.11.007.Google Scholar
- Raeissadat, S., Sadeghi, S., & Montazeri, A. (2013). Validation of the Pain Catastrophizing Scale (PCS) in Iran. Journal of Basic and Applied Scientific Research, 3(9), 376–380.Google Scholar
- Rahmati, N., Asghari, M. M. A., Shaeiri, M. R., Paknejad, M., Rahmati, Z., Ghassami, M., et al. (2014). Psychometric properties of the Tampa Scale for Kinesiophobia amongst Iranian patients with chronic persistent pain. Payesh, 13(2), 197–210.Google Scholar
- Rodero, B., Luciano, J. V., Montero-Marín, J., Casanueva, B., Palacin, J. C., Gili, M., López del Hoyo, Y., Serrano-Blanco, A., & Garcia-Campayo, J. (2012). Perceived injustice in fibromyalgia: psychometric characteristics of the Injustice Experience Questionnaire and relationship with pain catastrophising and pain acceptance. Journal of Psychosomatic Research, 73(2), 86–91. https://doi.org/10.1016/j.jpsychores.2012.05.011.Google Scholar
- Scott, W., & Sullivan, M. (2012). Perceived injustice moderates the relationship between pain and depressive symptoms among individuals with persistent musculoskeletal pain. Pain Research and Management, 17(5), 335–340.Google Scholar
- Scott, W., Trost, Z., Milioto, M., & Sullivan, M. J. (2013). Further validation of a measure of injury-related injustice perceptions to identify risk for occupational disability: a prospective study of individuals with whiplash injury. Journal of Occupational Rehabilitation, 23(4), 557–565. https://doi.org/10.1007/s10926-013-9417-1.Google Scholar
- Sullivan, M. J., Adams, H., Horan, S., Maher, D., Boland, D., & Gross, R. (2008). The role of perceived injustice in the experience of chronic pain and disability: scale development and validation. Journal of Occupational Rehabilitation, 18(3), 249–261. https://doi.org/10.1007/s10926-008-9140-5.Google Scholar
- Sullivan, M. J., Davidson, N., Garfinkel, B., Siriapaipant, N., & Scott, W. (2009). Perceived injustice is associated with heightened pain behavior and disability in individuals with whiplash injuries. Psychological Injury and Law, 2(3), 238–247. https://doi.org/10.1007/s12207-009-9055-2.Google Scholar
- Sullivan, M. J., Thibault, P., Simmonds, M. J., Milioto, M., Cantin, A.-P., & Velly, A. M. (2009). Pain, perceived injustice and the persistence of post-traumatic stress symptoms during the course of rehabilitation for whiplash injuries. Pain, 145(3), 325–331. https://doi.org/10.1016/j.pain.2009.06.031.Google Scholar
- Trost, Z., Van Ryckeghem, D., Scott, W., Guck, A., & Vervoort, T. (2016). The effect of perceived injustice on appraisals of physical activity: an examination of the mediating role of attention bias to pain in a chronic low back pain sample. The Journal of Pain, 17(11), 1207–1216. https://doi.org/10.1016/j.jpain.2016.08.001.Google Scholar
- Yakobov, E., Scott, W., Tanzer, M., Stanish, W., Dunbar, M., Richardson, G., & Sullivan, M. J. (2014). Validation of the Injustice Experiences Questionnaire adapted for use with patients with severe osteoarthritis of the knee. Journal of Arthritis, 3(130). https://doi.org/10.4172/2167-7921.1000130.
- Yamada, K., Adachi, T., Mibu, A., Nishigami, T., Motoyama, Y., Uematsu, H., Matsuda, Y., Sato, H., Hayashi, K., Cui, R., Takao, Y., Shibata M., & Iso, H. (2016). Injustice Experience Questionnaire, Japanese version: cross-cultural factor-structure comparison and demographics associated with perceived injustice. PLoS One, 11(8), e0160567. https://doi.org/10.1371/journal.pone.0160567.Google Scholar