Farsi Version of the Mammography Self-efficacy Scale for Iranian Women
Self-efficacy is a crucial factor in adopting mammography behavior. A reliable and valid instrument is necessary to measure self-efficacy among Iranian women. The aim of this study is to translate the original version of Champion's Mammography Self-efficacy Scale into Farsi and then to estimate...
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Published in | Cancer nursing Vol. 38; no. 6; p. 484 |
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Main Authors | , , , , , , |
Format | Journal Article |
Language | English |
Published |
United States
01.11.2015
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Subjects | |
Online Access | Get more information |
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Summary: | Self-efficacy is a crucial factor in adopting mammography behavior. A reliable and valid instrument is necessary to measure self-efficacy among Iranian women.
The aim of this study is to translate the original version of Champion's Mammography Self-efficacy Scale into Farsi and then to estimate the Farsi version's reliability and validity.
In a cross-sectional study, 200 women 40 years or older who were referred to health centers in Iran were invited to complete the related questionnaires during an interview. Cronbach's α coefficients and item-total correlations were measured to evaluate the reliability of the scales. Content and face validities were evaluated using the opinions of a panel of experts, and construct validity was estimated through applying confirmatory factor analysis. Logistic regression and χ tests were used to estimate theoretical relationships.
In terms of reliability, the internal consistency α was .904 and the test-retest reliability correlation over a 4-week period was 0.624. With regard to the confirmatory factor analysis, the proportion of χ to degrees of freedom was 0.394, giving a P value of .852 and a root-mean-square error of approximation less than 0.001 with confidence intervals of less than 0.001 and 0.018, with a comparative fit index of 1, normed fit index of 0.999, relative fit index of 0.993, and incremental fit index of 1.
The items that form the self-efficacy measurement scale in the Farsi version are highly reliable and valid.
Healthcare professionals and nursing health communities may apply the instrument to determine women's self-efficacy and to plan appropriate educational interventions, aiming at promoting women's mammography behavior. |
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ISSN: | 1538-9804 |
DOI: | 10.1097/NCC.0000000000000238 |