Research Article

Psychometric evaluation of Persian version of Activities-specific Balance Confidence scale for elderly Persians


Background and Aim: Disequilibrium is a common complaint in the elderly. The activities-specific balance confidence (ABC) scale is a suitable tool for assessing the level of confidence in balance whilst performing daily activities. The purpose of the study was translation, cultural adaptation and evaluation of the reliability and validity of the Activities-Specific Balance Confidence Scale for elderly Persians.
Methods: This was a descriptive, cross-sectional (test development) study. The ABC scale was translated based on the native protocol of the international quality of life assessment and was adapted to conditions found in Iranian culture. Upon confirmation of face validity, the questionnaire was given to 142 Persians aged between 60 and 92 years, selected via simple sampling. After one week, 56 participants were asked to complete the questionnaire again. Finally, reliability was evaluated using internal consistency and test-retest reproducibility.
Results: Three items out of 16 were modified to adapt the scale to Iranian culture. Changes were approved by the original author. Reliability was confirmed using a Cronbach alpha coefficient of 0.96 and an Intraclass correlation coefficient of 0.97.
Conclusion: The Persian version of the ABC scale is equivalent to the original content of the scale. In addition, it is compliant with the terms of Persian culture. It has high validity and reliability. It is suitable for assessing the level of balance confidence in the elderly in clinical or research settings.

1. Olsson Möller U, Midlöv P, Kristensson J, Ekdahl C, Berglund J, Jakobsson U. Prevalence and predictors of falls and dizziness in people younger and older than 80 years of age--a longitudinal cohort study. Arch Gerontol Geriatr. 2013;56(1):160-8.
2. Powell LE, Myers AM. The Activities-specific Balance Confidence (ABC) Scale. J Gerontol A Biol Sci Med Sci. 1995;50A(1):M28-34.
3. Legters K. Fear of falling. Phys Ther. 2002;82(3):264-72.
4. Glover P, Prideaux B. Implications of population ageing for the development of tourism products and destinations. JVM. 2009;15(1):25-37.
5. Gill-Body KM, Beninato M, Krebs DE. Relationship among balance impairments, functional performance, and disability in people with peripheral vestibular hypofunction. Phys Ther. 2000;80(8):748-58.
6. Jang SN, Cho SI, Ou SW, Lee ES, Baik HW. The validity and reliability of Korean Fall Efficacy Scale (FES) and Activities-specific Balance Confidence Scale (ABC). Arch JKGS. 2003;7(4):255-68.
7. Mak MK, Lau AL, Law FS, Cheung CC, Wong IS. Validation of the Chinese translated Activities-Specific Balance Confidence scale. Arch Phys Med Rehabil. 2007;88(4):496-503.
8. Jarlsäter S, Mattsson E. Test of reliability of the dizziness handicap inventory and the activities-specific balance confidence scale for use in sweden. Eur J Physiother. 2003;5(3):137-44.
9. Salbach NM, Mayo NE, Hanley JA, Richards CL, Wood-Dauphinee S. Psychometric evaluation of the original and Canadian French version of the activities-specific balance confidence scale among people with stroke. Arch Phys Med Rehabil. 2006;87(12):1597-604.
10. Marques AP, Mendes YC, Taddei U, Pereira CA, Assumpção A. Brazilian-Portuguese translation and cross cultural adaptation of the activities-specific balance confidence (ABC) scale. Braz J Phys Ther. 2013;17(2):170-8.
11. Nilsagård Y, Carling A, Forsberg A. Activities-specific balance confidence in people with multiple sclerosis. Mult Scler Int. 2012;2012:613925.
12. Lohnes CA, Earhart GM. External validation of abbreviated versions of the activities-specific balance confidence scale in Parkinson's disease. Mov Disord. 2010;25(4):485-9.
13. Myers AM, Fletcher PC, Myers AH, Sherk W. Discriminative and evaluative properties of the activities-specific balance confidence (ABC) scale. J Gerontol A Biol Sci Med Sci. 1998;53(4):M287-94.
14. Lajoie Y, Girard A, Guay M. Comparison of the reaction time, the Berg Scale and the ABC in non-fallers and fallers. Arch Gerontol Geriatr. 2002;35(3):215-25.
15. Bullinger M, Alonso J, Apolone G, Leplège A, Sullivan M, Wood-Dauphinee S, et al. Translating health status questionnaires and evaluating their quality: the IQOLA Project approach. International Quality of Life Assessment. J Clin Epidemiol. 1998;51(11):913-23.
16. Munro BH. Statistical methods for health care research. 5th ed. New York: Lippincott Williams & Wilkins; 2004.
IssueVol 24 No 2 (2015) QRcode
SectionResearch Article(s)
Psychometrics activities-specific balance confidence scale elderly Persian validity reliability

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How to Cite
Hassan H, Zarrinkoob H, Jafarzadeh S, Akbarzade Baghban A. Psychometric evaluation of Persian version of Activities-specific Balance Confidence scale for elderly Persians. Aud Vestib Res. 24(2):54-63.