Adaptation of the Vaccine Hesitancy Scale: A validity and reliability study

Year 2022, Volume: 7 Issue: 3, 506 - 520, 20.10.2022

Servet Alp , Nurdan Oral Kara

https://doi.org/10.35232/estudamhsd.1139942

Abstract

The aim of the study is to adapt the Vaccine Hesitancy Scale, developed by the SAGE working group and tested by Shapiro et all (2018), to Turkish culture and to ensure the validity and reliability of the Turkish version of the scale. The original version of the scale was translated into Turkish by a faculty member working at the School of Foreign Languages of a state university. Furthermore, the Turkish translation was discussed by three academics in the field of health sciences who are fluent in English and Turkish, and it was evaluated by making the necessary checks in terms of meaning and grammar. The Turkish scale, which was reached as a result of the evaluation, was translated into English by a different faculty member working at the School of Foreign Languages. Then, the Turkish-English translation and the original version of the scale were compared and the opinion of an expert academic was sought again. The scale was finalized in accordance with the corrections and suggestions of the academicians. Data were collected from 355 parents living in the city center of Burdur with the final version of the scale. In order to test the psychometric (reliability and validity) properties of the scale; reliability was tested with McDonald's Omega and Cronbach Alpha methods, and construct validity was tested with exploratory/exploratory and confirmatory factor analysis. According to the result of the item analysis performed to determine the discriminative power of the scale items, it was found that it had sufficient discriminative power. Since the results obtained from the analyzes provide the generally accepted threshold values in the literature, it can be stated that the scale is a reliable measurement tool.

Keywords

Validity, Reliability, Adaptation of Scale, Vaccine Hesitation, Public Health

EBEVEYN AŞI TEREDDÜTTÜ ÖLÇEĞİNİN UYARLANMASI: GEÇERLİK VE GÜVENİRLİK ÇALIŞMASI

Abstract

Bu araştırmanın amacı, SAGE çalışma grubu tarafından geliştirilen Shapiro ve ark. (2018), tarafından geçerlik ve güvenirliği test edilen Aşı Tereddüttü Ölçeği’ni Türk kültürüne uyarlamak ve ölçeğin Türkçe versiyonunun geçerlik ve güvenirliğini sağlamaktır. Ölçeğin özgün hali bir devlet üniversitesinin Yabancı Diler Yüksekokulu’nda görev yapmakta olan bir öğretim üyesi tarafından Türkçeye çevrilmiştir. Elde edilen Türkçe çeviri, İngilizce ve Türkçe ’ye hâkim sağlık bilimleri alanındaki üç akademisyen tarafından tartışılmış, anlam ve gramer açısından gerekli kontrolleri yapılarak değerlendirilmiştir. Değerlendirme neticesinde elde edilen Türkçe ölçek, Yabancı Diler Yüksekokulu’nda görev yapmakta olan farklı bir öğretim üyesi tarafından İngilizce ’ye çevrilmiştir. Daha sonra İngilizce ‘ye çevrilmiş ölçek ile ölçeğin özgün hali karşılaştırılmış ve yeniden akademisyen görüşüne başvurulmuştur. Akademisyenlerin belirtmiş oldukları düzeltme ve öneriler dikkate alındıktan sonra ölçeğe son hali verilmiştir. Nihai hali verilerek oluşturulan ölçek ile Burdur ili merkezinde yaşayan 355 ebeveynden veri toplanmıştır. Ölçeğin psikometrik (güvenirlik ve geçerlik) özelliklerini test etmek amacıyla McDonald’s Omega ve Cronbach Alpha yöntemi ile güvenirliği, açımlayıcı/keşfedici ve doğrulayıcı faktör analizi ile yapı geçerliği test edilmiştir. Ayrıca ölçek maddelerinin ayırt edicilik gücünü belirlemek amacıyla yapılan madde analizi sonucuna göre ölçek maddelerinin yeterli ayırt edicilik gücüne sahip olduğu bulunmuştur. Gerçekleştirilen analizlerden elde edilen sonuçlar alan yazınında genel kabul görmüş eşik değerleri sağladığından ölçeğin güvenilir bir ölçüm aracı olduğu ifade edilebilir.

Keywords

Aşı tereddüttü, halk sağlığı, geçerlik, güvenirlik, ölçek uyarlaması

References

• 1. Fine P, Eames K, Heymann DL. Herd immunity: a rough guide. Clinical\Infectious Diseases 2011;52: 911- 916.
• 2. WHO The Global Health Observatory [13 Ocak 2022 tarihinde alındı]. Erişim Adresi: https://www.who.int/data/gho/data/countries/countrydetails/GHO/turkey?countryProfileId=e15ebd1a-7ed0-4d05-9659-98efa265037a.
• 3. Ries NM. Public health law and ethics: Lessons learned from SARS and quarantine. Health Law Review, 2004;13: 3-6.
• 4. Poland GA, Jacobson RM. Understanding those who do not understand: a brief review of the anti-vaccine movement. Vaccine 2001; 19: 2440-2445.
• 5. Ritvo P, Irvine J, Klar N, Wilson K, Brown L, Bremner KE, Rinfret A, Remis R, Krahn MD. A Canadian national survey of attitudes and knowledge regarding preventive vaccines. Journal of Immune Based Therapies and Vaccines 2003; 1: 1-9.
• 6. Freed GL, Clark SJ, Butchart AT, Singer DC, Davis MM. Parental vaccine safety concerns in 2009. Pediatrics 2010; 125: 654-659.
• 7. Larson HJ, Jarrett C, Eckersberger E, Smith DMD, Paterson P. Understanding vaccine hesitancy around vaccines and vaccination from a global perspective: A systematic review of published literature, 2007-2012. Vaccine 2014; 32: 2150-2159.
• 8. Wolfe RM, Sharp LK. Anti-vaccinationists past and present. The British Medical Journal 2002; 325: 430-432.
• 9. Tafuri S, Gallone MS, Cappelli MG, Martinelli D, Prato R, Germinario C. Addressing the anti-vaccination movement and the role of HCWs. Vaccine 2014;32: 4860-4865.
• 10. World Health Organization (WHO). Report of the SAGE working group on vaccine hesitancy. Last updated November 12th, 2014.
• 11. MacDonald NE. Vaccine hesitancy: Definition, scope and determinants. Vaccine (in press). 2015; 33: 4161–4164.
• 12. Leask J. Target the fence-sitters. Nature 2011; 473: 443-445.
• 13. Leask, J, Kinnersley P, Jackson C, Cheater F, Bedford H, Rowles G. Communicating with parents about vaccination: a framework for health professionals. BMC Pediatrics, 2012; 12: 154.
• 14. Larson HJ. Negotiation vaccine acceptance in an era of reluctance. Human Vaccines & Immunotherapies 2013; 9: 1779-1782.
• 15. Shapiro GK TO, Dube E, Amsel R, Knauper B, Naz A. The vaccine hesitancy scale: psychometric properties and validaiton. Vaccine 2018;36:660-7.
• 16. Opel DJ, Taylor JA, Mangione Smith R, Solomon C, Zhao C, Catz S, Martin D. Validity and reliability of a survey to identify vaccine-hesitant parents. Vaccine 2011;29:6598-6605.
• 17. Akdemir Kalkan İ, Ören MM, Karaşahin O, Yıldız Y, Demir Y, Tuba DAL, Çelen MK. Çocukluk çağı aşılarına yönelik ebeveyn tutumları ölçeğinin Türkçeye kültürel ve dil uyarlaması. Pamukkale Tıp Dergisi 2021; 14: 49-56.
• 18. World Health Organization (WHO). Process of translation and adaptation of instruments. [11 Ocak 2022 tarihinde alındı]. Erişim Adresi: http://www. who.int/substance_abuse/research_tools/translation/en/.
• 19. International Test Commission (ITN). Guidelines for translating and adapting tests. International Journal of Testing 2018; 18:101–134.
• 20. DeMars CE. Classical test theory and item response theory. In Irwing P, Booth T, Hughes DJ. (eds). The Wiley Handbook Of Psychometric Testing: A Multidisciplinary Reference on Survey, Scale and Test Development, Hoboken: 2018. Wiley Blackwell; s.49-73.
• 21. Kelley TL. The selection of upper and lower grades for the validation of test items. Journal of Educational Psychology 1939; 30: 17–24.
• 22. Irwing P, Booth T, Hughes DJ, (eds) The Wiley Handbook ıf Psychometric Testing: A Multidisciplinary Reference ın Survey, Scale and Test Development. Hoboken: 2018. Wiley Blackwell; 2018.
• 23. Revelle W, Zinbarg RE. Coefficients alpha, beta, omega and the glb: comments on Sijtsma. Psychometrika, 2009;74: 145–154. 24. Zinbarg RE, Revelle W, Yovel I, Li W. Cronbach’s α, Revelle’s β, and McDonald’s ωH: Their relations with each other and two alternative conceptualizations of reliability. Psychometrika, 2005;70: 123–133.
• 25. Hayes AF, Coutts JJ. Use omega rather than cronbach’s alpha for estimating reliability. but…. Communication Methods and Measures 2020; 14:1–24.
• 26. Mackinnon DP, Lockwood CM, Willams J. Confidence limits for the indirect effect: Distribution of the product and resampling methods, Multivariate Behavioral Research 2004;39: 99-128.
• 27. Can A. SPSS ile Bilimsel Araştırma Sürecinde Nicel Veri Analizi. 3. Baskı. Ankara: Pegem Akademi; 2014. s.365.
• 28. Alpar R. Uygulamalı İstatistik ve Geçerlik-Güvenirlik. Ankara: Detay Yayıncılık; 2012. s.385.
• 29. Robinson JP, Paulhus DL, Shaver PR, Wrightsman LS. Measures of personality and social psychological attitudes. Measures of Social Psychological Attitudes Series 1991; 1: 17-59.
• 30. Robinson, JP, Shaver PR, Wrightsman LS. Criteria for scale selection and evaluation. In Robinson, JP, Shaver PR, Wrightsman LS (eds). Measures of Personality and Social Psychological Attitudes, San Diego: Academic Press; 1991b.
• 31. George, D., & Mallery P. IBM SPSS statistics 26 step by step: A simple guide and reference. Sixteenth Edition Routledge. 2020.
• 32. Hair JR. JF, Black CW, Babin JB, Anderson ER. Multivariate Data Analysis Eighth Edition. United Kingdom; Cengage Learning, EMEA. 2018.
• 33. Aldrich JO, Cunningham, J. B. Using SPSS: An interactive hands-on approach. Second edition, Sage. 2011.
• 34. Byrne BM. Structural Equation Modeling with AMOS: Basic Concepts, Applications, and Programming. Third Edition. New York; Routledge 2016. s.97.
• 35. Yılmaz Y, Çelik HE. Lisrel ile Yapısal Eşitlik Modellemesi I: Temel Kavramlar, Uygulamalar, Programlama. 1. Baskı. Ankara: Pegem Akademi; 2009.
• 36. İlhan M, Çetin B. LISREL ve AMOS programları kullanılarak gerçekleştirilen yapısal eşitlik modeli (YEM) analizlerine ilişkin sonuçların karşılaştırılması. Eğitimde ve Psikolojide Ölçme ve Değerlendirme Dergisi 2014; 5: 26-42.
• 37. Finch WH, Immekus JC, French BF. Applied Psychometrics Using SPSS and AMOS. Charlotte: Information Age Publishing; 2016.
• 38. Collier KE. Applied Structural Equation Modeling Using AMOS: Basic to Advanced Techniques. New York: Routledge; 2020. s.66.
• 39. Tabachnick BG, Fidell LS. Using Multivariate Statistics. Sixth Edition, New Jersey: Pearson Education, 2013.
• 40. Kline RB. Principles and Practice of Structural Equation Modeling Fourth Edition. New York: The Guilford Press; 2015.
• 41. Wang J, Wang X. Structural Equation Modeling: Applications Using Mplus. Second Edition. Hoboken: Wiley Blackwell; 2020.