Background: This study aimed to examine the psychometric properties of the Persian version of the Traumatic Grief Inventory–Self Report (TGI-SR) in a convenience sample of Iranian bereaved individuals. Method: The present survey research; included 138 bereaved adults (127 women and 11 men; mean age = 44 years); who had experienced the death of a loved one more than one year prior and were recruited via convenience sampling. Participants completed the Persian TGI-SR along with the Brief Symptom Inventory and the Oxford Happiness Inventory. Data were analyzed using CFA, correlation coefficients and reliability indices including Cronbach’s alpha, McDonald’s omega, and composite reliability. Results:After model modifications, CFA indicated acceptable model fit; all items except item 15 had factor loadings above 0.40. The AVE was 0.41. Internal consistency was satisfactory, with Cronbach’s alpha= 0.92, McDonald’s omega= 0.91, and CR= 0.90. Correlations with BSI-53 (r= 0.76, p< 0.001) and OHI (r= -0.54, p< 0.001) confirmed convergent and discriminant validity. Conclusion: The Persian TGI-SR demonstrates adequate reliability and validity; however, revision of item 15 and use of a more diverse sample are recommended to enhance generalizability.
Szuhany KL, Malgaroli M, Miron CD, Simon NM. Prolonged grief disorder: Course, diagnosis, assessment, and treatment. Focus. 2021 Jun;19(2):161-72.Doi:10.1176/appi.focus.20200052
Prigerson HG, Kakarala S, Gang J, Maciejewski PK. History and status of prolonged grief disorder as a psychiatric diagnosis. Annu Rev Clin Psychol. 2021 May 7;17(1):109-26.Doi:10.1146/annurev-clinpsy-081219-093600
Frumkin MR, Robinaugh DJ, LeBlanc NJ, Ahmad Z, Bui E, Nock MK, Simon NM, McNally RJ. The pain of grief: Exploring the concept of psychological pain and its relation to complicated grief, depression, and risk for suicide in bereaved adults. J Clin Psychol. 2021 Jan;77(1):254-67.Doi:10.1002/jclp.23024
Shear MK, Simon N, Wall M, Zisook S, Neimeyer R, Duan N, Reynolds C, Lebowitz B, Sung S, Ghesquiere A, Gorscak B. Complicated grief and related bereavement issues for DSM‐ Depress. Anxiety. 2011 Feb;28(2):103-17.Doi:10.1002/da.20780
Boelen PA, Smid GE. Disturbed grief: prolonged grief disorder and persistent complex bereavement disorder. Bmj. 2017 May 18;357.Doi:10.1136/bmj.j2016
Parisi A, Sharma A, Howard MO, Wilson AB. The relationship between substance misuse and complicated grief: A systematic review.J Subst Abuse Treat. 2019 Aug 1;103:43-57. Doi:10.1016/j.jsat.2019.05.012
Prigerson HG, Horowitz MJ, Jacobs SC, Parkes CM, Aslan M, Goodkin K, Raphael B, Marwit SJ, Wortman C, Neimeyer RA, Bonanno G. Prolonged grief disorder: Psychometric validation of criteria proposed for DSM-V and ICD-11. PLoS Med. 2009 Aug 4;6(8):e1000121. Doi:10.1371/journal.pmed.1000121
American Psychiatric Association. Diagnostic and statistical manual of mental disorders. American psychiatric association; 2013 May 22. Available from: https://doi.org/10.1176/appi.books.9780890425596
World Health Organization. International classification of diseases (ICD) revision, 11th revision (ICD-11). World Health Organization. 2018 May 28. Available from: International Classification of Diseases (ICD)
Boelen PA, Smid GE. The traumatic grief inventory self-report version (TGI-SR): introduction and preliminary psychometric evaluation. J Loss Trauma. 2017;22(3):196-212. Doi:1080/15325024.2017.1284488
Prigerson HG, Maciejewski PK, Reynolds III CF, Bierhals AJ, Newsom JT, Fasiczka A, et al. Inventory of complicated grief: a scale to measure maladaptive symptoms of loss. Psychiatry Res. 1995;59(1-2):65-79. Doi:10.1016/0165-1781(95)02757-2
Prigerson HO, Jacobs SC. Traumatic grief as a distinct disorder: a rationale, consensus criteria, and a preliminary empirical test. In: Stroebe MS, Hansson RO, Stroebe W, Schut H, editors. Handbook of bereavement research: consequences, coping, and care. Washington (DC): American Psychological Association; 2001. p. 613-45. Doi:10.1037/10436-026
Lee SA. The persistent complex bereavement inventory: a measure based on the DSM-5. Death Stud. 2015;39(7):399-410. Doi:10.1080/07481187.2015.1029144
Shakerian A, Mardi N. Predicting the reaction to bereavement based on the practice of religious beliefs and seeking meaning in the individuals bereaved due to COVID-19. J Res Relig Health. 2024;10(1):110-21. [Persian]. Doi:10.22037/jrrh.v10i1.39299
Azim Oghlui Oskooi PB, Farahbakhsh K, Moradi O. Effective fields the experience of mourning after the death of a family member: a phenomenological study. J Couns Cult Psychother. 2021;12(45):101-40. [Persian]. Doi:10.22054/qccpc.2020.48664.2275
Mousavi R, Payamani B. The course of collective memory in the formation of mourning culture in Iran's religious society based on the theory of "collective memory" by Maurice Halbwachs with the case study of Ashura and Siyavoshan ceremonies. Sociol Cult Stud, Inst Humanit Cult Stud (IHCS). 2024;15(1):251-79. [Persian]. Available from:https://doi.org/10.30465/scs.2024.9341
Akhavan Abiri F, Shairi MR. Validity and reliability of Symptom Checklist-90-Revised (SCL-90-R) and Brief Symptom Inventory-53 (BSI-53). Clin Psychol Pers. 2020;2(33):169-95. [Persian]. Available from:https://share.sid.ir/paper/208738/fa?media=1
Hilberdink CE, Ghainder K, Dubanchet A, Hinton D, Djelantik AM, Hall BJ, et al. Bereavement issues and prolonged grief disorder: A global perspective. Cambridge Prisms Glob Ment Health. 2023;10:e32. https://doi.org/10.1017/gmh.2023.28
Hills P, Argyle M. The Oxford Happiness Questionnaire: a compact scale for the measurement of psychological well-being.Pers Individ Dif. 2002 Nov 1;33(7):1073-82. https://doi.org/10.1016/S0191-8869(01)00213-6
Hills P, Argyle M. The Oxford Happiness Questionnaire: a compact scale for the measurement of psychological well-being. Pers Individ Dif. 2002;33(7):1073-82. Doi:10.1016/S0191-8869(01)00213-6
Liaghatdar MJ, Jafari E, Abedi MR, Samiee F. Reliability and validity of the Oxford Happiness Inventory among university students in Iran. Span J Psychol. 2008 May;11(1):310-3. Available from: https://sid.ir/paper/645611/en
George D, Mallery P. IBM SPSS statistics 29 step by step: a simple guide and reference. Routledge; 2024. Doi:10.4324/9781032622156
Anderson TW, Darling DA. A Test of Goodness of Fit. J Am Stat Assoc. 1954 Dec;49(268):765-9. Doi:10.2307/2281537
Ghasemi A, Zahediasl S. Normality tests for statistical analysis: a guide for non-statisticians. Int J Endocrinol Metab. 2012;10(2):486. https://doi.org/10.5812/ijem.3505
DiStefano C, Morgan GB. A comparison of diagonal weighted least squares robust estimation techniques for ordinal data. Struct Eq Model. 2014 Jul 3;21(3):425-38.Doi:10.1080/10705511.2014.915373
Byrne BM. Structural equation modeling with Mplus: basic concepts, applications, and programming. Routledge; 2013. Doi:10.4324/9780203807644
Shi D, Lee T, Maydeu-Olivares A. Understanding the model size effect on SEM fit indices. Educ Psychol Meas. 2019 Apr;79(2):310-34. Doi:10.1177/0013164418783530
Quayle K, Jones P, Di Simplicio M, Kamboj S, Pitman A. Exploring the phenomenon of intrusive mental imagery after suicide bereavement: A qualitative interview study in a British sample. PLoS One. 2023;18(8):e0284897.https://doi.org/10.1371/journal.pone.0284897
Eisma MC. Prolonged grief disorder in ICD-11 and DSM-5-TR: Challenges and controversies. Aust N Z J Psychiatry. 2023 Jul;57(7):944-51. https://doi.org/10.1177/00048674231154206
Eisma MC, Janshen A, Lenferink LI. Content overlap analyses of ICD-11 and DSM-5 prolonged grief disorder and prior criteria-sets. Eur J Psychotraumatol. 2022;13(1):2011691. Doi:10.1080/20008198.2021.2011691
Fornell C, Larcker DF. Evaluating structural equation models with unobservable variables and measurement error. J Mark Res. 1981 Feb;18(1):39-50. https://psycnet.apa.org/doi/10.2307/3151312
Cheung GW, Cooper-Thomas HD, Lau RS, Wang LC. Reporting reliability, convergent and discriminant validity with structural equation modeling: A review and best-practice recommendations. Asia Pac J Manag. 2024 Jun 1;41(2):745-83. https://doi.org/10.1007/s10490-023-09871-y
Markon KE, Chmielewski M, Miller CJ. The reliability and validity of discrete and continuous measures of psychopathology: a quantitative review. Psychol Bull. 2011;137(5):856. Doi:10.1037/a0023678
Bonanno GA, Malgaroli M. Trajectories of grief: comparing symptoms from the DSM‐5 and ICD‐11 diagnoses. Depress Anxiety. 2020 Jan;37(1):17-25. Doi:10.1002/da.22902
Chentsova‐Dutton YE, Ryder AG. Cultural models of normalcy and deviancy. Asian J Soc Psychol. 2020 Jun;23(2):187-204. Doi:10.1111/ajsp.12413
De Vaus J, Hornsey MJ, Kuppens P, Bastian B. Exploring the East-West divide in prevalence of affective disorder: a case for cultural differences in coping with negative emotion. Pers Soc Psychol Rev.2018;22(3):285-304.Doi:1177/1088868317736222
Karimitar A. Mourning rituals and their psychological meanings in Iranian culture [dissertation]. Pullman (WA): Washington State University; 2019. Available from: https://hdl.handle.net/2376/100515
Akbarzadeh M, Abdollahi Bagherabadi G, Ghodrati Mirkouhi M. Impact of Islamic-Iranian lifestyle–based mindful self-compassion training on psychological distress and emotional efficiency in bereaved survivorsofCOVID-19.Clin1404;17(2):99–115. [Persian]. https://doi.org/10.22075/jcp.2025.36445.309
Bagheri M. Conceptualizations of sadness in Persian. InPersian linguistics in cultural contexts. 2020 Oct 29 (pp. 127-140). Routledge. Doi:10.4324/9780429470165
Pourkhaleghi-Chatroudi M, Haqparast L. A comparative study of mourning rituals in Shahnameh and the remnants of religious mourning practices in ancient Iran.Nasr Res Persian Lit.[Persian]. Available from: http://noo.rs/3sAXd
Abe S. Culture of Mourning in Iran During the COVID-19 Pandemic: Funeral Rituals, Emotions, and Stigma. InSOCIAL STIGMA AND THE PANDEMIC: Key Challenges and Responses Across Greater Asia 2025 (pp. 13-32). Doi:10.1142/9789811284618_0002
Bolaséll LT, Pinzón JH, Boelen PA, et al. The Traumatic Grief Inventory Self-Report (TGI-SR) as a clinical measure to identify Brazilians with prolonged grief disorder and persistent complex bereavement disorder. Trends Psychol. 2023. https://doi.org/10.1007/s43076-023-00316-5
Cherblanc J, Gagnon C, Côté I, Bergeron-Leclerc C, Cadell S, Gauthier G, et al. French-Canadian validation of the traumatic grief inventory-self report (TGI-SR). Death Stud. 2023 Apr 21;47(4):430-9. Doi:10.1080/07481187.2022.2085347
Baş S, Yüksel Ö, Ülbe S, Güngör D. Turkish version of the traumatic grief inventory-self report (TGI-SR): Validity and reliability. Death Stud. 2022 Jul;46(6):1481–9. https://doi.org/10.1080/07481187.2020.1850551
Boelen PA, Huntjens RJ. Intrusive images in grief: an exploratory study. Clin Psychol Psychother. 2008;15(4):217-26. Doi:10.1002/cpp.568
Boelen PA, Lenferink LI. Symptoms of prolonged grief, posttraumatic stress, and depression in recently bereaved people: symptom profiles, predictive value, and cognitive behavioural correlates. Soc Psychiatry Psychiatr Epidemiol. 2020; 55:765-77. Doi:10.1007/s00127-019-01776-w
Milman E. Non-death loss and grief: context and clinical implications [book review]. Omega (Westport). 2021;84(1):340-3. Doi:10.1177/00302228211020156
Smith KV, Ehlers A. Cognitive predictors of grief trajectories in the first months of loss: a latent growth mixture model. J Consult Clin Psychol. 2020;88(2):93. Doi:10.1037/ccp0000438
Shi P, Yang A, Zhao Q, Chen Z, Ren X, Dai Q. A hypothesis of gender differences in self-reporting symptom of depression: implications to solve under-diagnosis and under-treatment of depression in males. Front Psychiatry. 2021 Oct 25;12:589687. https://doi.org/10.3389/fpsyt.2021.589687
Stroebe M, Stroebe W, Schut H. Gender differences in adjustment to bereavement: An empirical and theoretical review. Rev Gen Psychol. 2001 Mar;5(1):62-83. https://doi.org/10.1037/1089-2680.5.1.62
Lundorff M, Bonanno GA, Johannsen M, O'Connor M. Are there gender differences in prolonged grief trajectories? A registry-sampled cohort study. J Psychiatr Res. 2020 Oct 1;129:168–75. https://doi.org/10.1016/j.jpsychires.2020.06.030
Lenferink LI, Eisma MC, Smid GE, de Keijser J, Boelen PA. Valid measurement of DSM-5 persistent complex bereavement disorder and DSM-5-TR and ICD-11 prolonged grief disorder: the Traumatic Grief Inventory–Self Report Plus (TGI-SR+). Compr Psychiatry. 2022; 112:152281. https://doi.org/10.1016/j.comppsych.2021.152281
Morsali,Z , Azadfallah,P and Farahani,H . (2026). Psychometric Properties of the Persian Version of traumatic grief inventory-self report. Clinical Psychology: Research and Practice Innovations", 18(2), 23-39. doi: 10.22075/jcp.2025.38072.3225
MLA
Morsali,Z , , Azadfallah,P , and Farahani,H . "Psychometric Properties of the Persian Version of traumatic grief inventory-self report", Clinical Psychology: Research and Practice Innovations", 18, 2, 2026, 23-39. doi: 10.22075/jcp.2025.38072.3225
HARVARD
Morsali Z, Azadfallah P, Farahani H. (2026). 'Psychometric Properties of the Persian Version of traumatic grief inventory-self report', Clinical Psychology: Research and Practice Innovations", 18(2), pp. 23-39. doi: 10.22075/jcp.2025.38072.3225
CHICAGO
Z Morsali, P Azadfallah and H Farahani, "Psychometric Properties of the Persian Version of traumatic grief inventory-self report," Clinical Psychology: Research and Practice Innovations", 18 2 (2026): 23-39, doi: 10.22075/jcp.2025.38072.3225
VANCOUVER
Morsali Z, Azadfallah P, Farahani H. Psychometric Properties of the Persian Version of traumatic grief inventory-self report. JCP. 2026;18(2):23-39 (In Persian). doi: 10.22075/jcp.2025.38072.3225