Psychometric properties of the Iranian version of self-care ability scale for the elderly

Mehrdad Amir-Behghadami,Masoumeh Gholizadeh,Jafar Sadegh Tabrizi,Mohammad Saadati

doi:10.1186/s12877-020-01775-6

Mehrdad Amir-Behghadami, Masoumeh Gholizadeh + Show 2 more

Open Access

https://doi.org/10.1186/s12877-020-01775-6

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Journal: BMC Geriatrics	Publication Date: Sep 22, 2020
Citations: 5	License type: open-access

Affiliation: Tabriz University of Medical Sciences

Abstract

BackgroundMeasuring self-care ability in elderly people needs specific instruments. The Self-care Ability Scale for Elderly (SASE) is one of the common instruments used for assessing self-care ability. The aim of this study was to assess the psychometric properties of the SASE among Iranian elderly population.MethodsThis cross-cultural adaptation study was carried out at Shahid Chamran and Shadpour Health Complex in Tabriz, Iran. The forward-backward procedure was applied to translate the SASE from English into Persian. Then, it was completed to 220 elderly people. A systematic random sampling method was used for sampling. Content validity was calculated through modified Kappa coefficient (modified CVI) based on clarity and relevance criteria. Reliability was measured by internal consistency and test-retest analysis. The construct validity also was assessed using Exploratory Factor Analysis (EFA). All the statistical analyses were performed using SPSS 21 statistical software package.ResultsThe mean of self-care ability was 61.14 ± 21.08. The CVI and modified kappa were 0.91 and 0.92 for relevance and clarity, respectively. The Cronbach’s alpha coefficient was 0.73 and Intra-class correlation coefficient was 0.97. The results of EFA revealed a three-factor solution (‘ability to take care of personal responsibility’, ‘ability to take care for the goals’, and ‘ability to take care of the health’) that jointly explained for 64.61% of the total variance.ConclusionResults of the study showed that the Iranian version of the SASE has good psychometric properties and can be used in assessing the self-care ability of elderly people.

Highlights

Measuring self-care ability in elderly people needs specific instruments
The result of quantitative content validity indicated that the CVI and modified kappa were 0.91 and 0.91 for relevance and 0.92 and 0.92 for clarity, respectively
Content validity is an essential component of psychometric properties, which must be done independent of the translation phase

Summary

Introduction

Measuring self-care ability in elderly people needs specific instruments. The Self-care Ability Scale for Elderly (SASE) is one of the common instruments used for assessing self-care ability. Many nations have identified a rapid growth in the population of elderly people as the phenomenon of the twenty-first century [3]. The population of the elderly is estimated to be above 605 million and it is estimated that by the year 2050 this number will reach two billion people [4]; which is more than children population growth [5]. According to the United Nations Information Center in Tehran, the number of elderly people in Iran was 4,562,000, Amir-Behghadami et al BMC Geriatrics (2020) 20:364 which means 6% of the total population of Iran is over 60 years old [1]. Aging occurs in all main regions of the world; on the whole, proportion of the people over 60 years old was 9% in 1994 but increased up to 12% in 2014. It is expected to hit 21% in 2050 [6]

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