A Validity and Reliability Study on the Persian Version of the Core Beliefs Inventory (CBI)

Document Type : Original Article

Authors

1 Department of Clinical Psychology, Faculty of Humanities, Shahed University, Tehran, Iran

2 Department of Biostatistics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran

10.30491/ijbs.2022.293742.1602

Abstract

Introduction: Trauma may have psychopathological effects, but also improvements that are considered beneficial (i.e., posttraumatic growth). An influence on people's beliefs is needed for significant progress to occur, and can be calculated by the Core Beliefs Inventory (CBI).
The aim of the present study was to examine the validity and reliability of the Persian version of the CBI.
Method: In a cross-section study, the Persian version of the CBI was submitted to 211 university students in the year 2021. Confirmatory Factor Analysis (CFA), reliability and predictive validity were used for the psychometric properties. For evaluating the predictive validity, the Posttraumatic Growth Inventory (PTGI) was used. The SPSS version 21, AMOS version 18 and PLS version 2 were also used to analyze the data.
Results: Cronbach’s alpha and composite reliability for CBI were 0.84 and 0.94 respectively. The CFA (RMSEA=0.026, relative Chi–square =1.77, GFI=0.962, AGFI=0.918) showed adequate construct validity of the CBI. More results also showed that the CBI score significantly predicted the of PTGI score (r=0.25, p<0.001) and good convergent validity (AVE=0.61).
Conclusion: The results of the research revealed the validity and reliability of the Persian version of the CBI questioner at a very desirable level, thus making it a valid and reliable instrument in evaluating the core beliefs.
 

Keywords


  1. Bonanno GA. Loss, trauma, and human resilience: have we underestimated the human capacity to thrive after extremely aversive events? American psychologist. 2004;59(1):20-28. doi: 10.1037/0003-066X.59.1.20
  2. Simiola V, Neilson EC, Thompson R, Cook JM. Preferences for trauma treatment: A systematic review of the empirical literature. Psychological Trauma: Theory, Research, Practice, and Policy. 2015;7(6):516-524. doi:org/10.1037/tra0000038
  3. van der Velden PG, Pijnappel B, van der Meulen E. Potentially traumatic events have negative and positive effects on loneliness, depending on PTSD-symptom levels: evidence from a population-based prospective comparative study. Social psychiatry and psychiatric epidemiology. 2018;53(2):195-206. doi:10.1007/s00127-017-1476-8
  4. Nohu S. Sleep quality in veterans with post-traumatic stress disorder. International Journal of Behavioral Sciences. 2007;1(1):69-77.
  5. Helgeson VS, Reynolds KA, Tomich PL. A meta-analytic review of benefit finding and growth. Journal of consulting and clinical psychology. 2006;74(5):797-816. doi: 10.1037/0022-006x.74.5.797
  6. Calhoun LG, Tedeschi R. Trauma and transformation: Growing in the aftermath of suffering. USA: Sage Publications; 1995.
  7. Tedeschi RG, Calhoun LG. Posttraumatic Growth: Conceptual Foundations and Empirical Evidence. Psychological Inquiry. 2004;15(1):1-18.
  8. Janoff-Bulman R. Shattered assumptions: Towards a new psychology of trauma.New York: Free Press; 1992.
  9. Linley PA, Joseph S. Positive change following trauma and adversity: A review. Journal of traumatic stress. 2004;17(1):11-21. doi:10.1023/B:JOTS.0000014671.27856.7e
  10. Calhoun LG, Tedeschi RG. Posttraumatic growth in clinical practice: New York, NY: Routledge; 2012.
  11. Calhoun LG, Tedeschi RG. The foundations of posttraumatic growth: An expanded framework. Handbook of posttraumatic growth: Routledge; 2014.3-23.
  12. Janoff-Bulman R. Schema-change perspectives on posttraumatic growth. Handbook of posttraumatic growth: Routledge; 2014. 81-99.
  13. Joseph S, Linley PA. Positive Psychological Perspectives on Posttraumatic Stress: An Integrative Psychosocial Framework. Trauma, Recovery, and Growth. 1-20.
  14. Joseph S, Linley PA. Positive psychological perspectives on posttraumatic stress: An integrative psychosocial framework. Trauma, recovery, and growth: Positive psychological perspectives on posttraumatic stress. 2008:3-20.
  15. Groleau JM, Calhoun LG, Cann A, Tedeschi RG. The role of centrality of events in posttraumatic distress and posttraumatic growth. Psychological Trauma: Theory, Research, Practice, and Policy. 2013;5(5): 477–483. doi:org/10.1037/a0028809
  16. Lindstrom CM, Cann A, Calhoun LG, Tedeschi RG. The relationship of core belief challenge, rumination, disclosure, and sociocultural elements to posttraumatic growth. Psychological Trauma: Theory, Research, Practice, and Policy. 2013;5(1):50-55. doi:org/10.1037/a0022030
  17. de Moura TC, Donat JC, da Silva TLG, Arteche AX, Lisboa CSdM, Kristensen CH. Validation of the Core Beliefs Inventory (CBI) in Brazilian Portuguese. Trends in psychiatry and psychotherapy. 2019;41(4):409-14. doi:org/10.1590/2237-6089-2018-0038
  18. Juczynski Z, Oginska-Bulik N. The importance of core beliefs in the process of posttraumatic adaptation–the Polish adaptation of the Core Beliefs Inventory. Advances in Psychiatry and Neurology. 2018;27(2):102-119. doi:10.5114/ppn.2018.77211

 

  1. Munro BH. Statistical methods for health care research: lippincott williams & wilkins; 2005.
  2. Tedeschi RG, Calhoun LG. The Posttraumatic Growth Inventory: Measuring the positive legacy of trauma. Journal of traumatic stress. 1996;9(3):455-471.
  3. Mahmoudi S, Rahimi C, Mohammadi N. Psychometric properties of posttraumatic growth inventory in an Iranian sample. Journal of psychological models and methods. 2013;3(12):93-108.
  4. Ramos C, Figueiras L, Lopes M, Leal I, Tedeschi RG. Core beliefs inventory: factor structure and psychometric properties in the Portuguese population. Psychology, Health & Disease. 2016;17(2):120-131. doi:10.15309/16psd170202.
  5. Ramos C, Leal I, Costa PA, Tapadinhas AR, Tedeschi RG. An item-level analysis of the posttraumatic stress disorder checklist and the posttraumatic growth inventory and its associations with challenge to core beliefs and rumination. Frontiers in Psychology. 2018;9. doi: 10.3389/fpsyg.2018.02346
  6. Grace JB. Structural equation modeling and natural systems: Cambridge University Press; 2006.
  7. Mehrens WA, Lehmann IJ. Measurement and evaluation in education and psychology: Holt McDougal; 1984.
  8. Park CL, Cohen LH, Murch RL. Assessment and prediction of stress‐related growth. Journal of personality. 1996;64(1):71-105. doi:10.1111/j.1467-6494.1996.tb00815.x
  9. Cann A, Calhoun LG, Tedeschi RG, Triplett KN, Vishnevsky T, Lindstrom CM. Assessing posttraumatic cognitive processes: The event related rumination inventory. Anxiety, Stress, & Coping. 2011;24(2):137-156. doi:10.1080/10615806.2010.529901.
  10. Taku K, Cann A, Tedeschi RG, Calhoun LG. Core beliefs shaken by an earthquake correlate with posttraumatic growth. Psychological trauma: Theory, research, practice, and policy. 2015;7(6): 563–569. doi:10.1037/tra0000054.
  11. Wilson B, Morris BA, Chambers S. A structural equation model of posttraumatic growth after prostate cancer. Psycho‐Oncology. 2014;23(11): 1212-1219. doi:org/10.1002/pon.3546
  12. Hobfoll SE, Palmieri PA, Johnson RJ, Canetti-Nisim D, Hall BJ, Galea S. Trajectories of resilience, resistance, and distress during ongoing terrorism: the case of Jews and Arabs in Israel. Journal of consulting and clinical psychology. 2009;77(1): 138–148. doi:org/10.1037/a0014360
  13. Ojiaku CM, Iorfa S, Mefoh PC, Ezeuzo O, Odinko IC. COVID-19-induced anxiety and Covid-19 precautionary measures as predictors of mental wellbeing of Nigerians. International Journal of Behavioral Sciences. 2020;14(3):149-154. dio: 10.30491/IJBS.2020.239210.1342