Study of internal consistency and factor structure of three versions of the Zung's rating instrument for anxiety disorders
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| Natura: | Artículo científico |
| Lingua: | en |
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Universidad del Valle
2009
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| _version_ | 1876424838670712832 |
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| author | Susana De la Ossa |
| author_facet | Susana De la Ossa |
| contents | Study of internal consistency and factor structure of three versions of the Zung's rating instrument for anxiety disorders Susana De la Ossa Yuleima Martinez Edwin Herazo Adalberto Campo Medicina Students University Factor analysis Validation study Internal consistency Background: The Zung's rating instrument for anxiety disorders has been used in several Colombian researches. Its internal consistency and factor structure have not been reported among university students.Objective: To calculate the internal consistency and explore the factor structure of three versions of the Zung's rating instrument for anxiety disorders among university students.Method: Two-hundred and twenty-one medicine and psychology students of a private university in Cartagena, Colombia, completed the 20-item version of the Zung's rating instrument for anxiety disorders. The mean of age of students was 20.5 years (SD=2.6), 64.4% were women, and 54.3% studied medicine. Cronbach alpha was computed and exploratory factor analysis was done for the three versions.Results: The 20-item version of the Zung's rating instrument for anxiety disorders presents Cronbach alpha coefficient of 0.77 and three principal factors accounted for 40.1% of the total variance. The 10-item version showed Cronbach alpha of 0.83 and two-dimensional structure responsible of 54.0% of the total variance. The 5-item version showed Cronbach alpha of 0.74 and one-dimensional structure accounted for 49.5% of the total variance.Conclusions: The 10- and 5-item version of the Zung's rating instrument for anxiety disorders present better psychometric properties than the original 20-item version. It is necessary to estimate the properties of these versions compared with a gold standard. 2009 artículo científico 0120-8322 https://www.redalyc.org/articulo.oa?id=28340110 en http://www.redalyc.org/revista.oa?id=283 Colombia Médica application/pdf Universidad del Valle Colombia Médica (Colombia) Num.1 Vol.40 |
| format | Artículo científico |
| id | redalyc_28340110 |
| institution | Redalyc |
| language | en |
| publishDate | 2009 |
| publisher | Universidad del Valle |
| spellingShingle | Study of internal consistency and factor structure of three versions of the Zung's rating instrument for anxiety disorders Susana De la Ossa Medicina Students University Factor analysis Validation study Internal consistency Study of internal consistency and factor structure of three versions of the Zung's rating instrument for anxiety disorders Susana De la Ossa Yuleima Martinez Edwin Herazo Adalberto Campo Medicina Students University Factor analysis Validation study Internal consistency Background: The Zung's rating instrument for anxiety disorders has been used in several Colombian researches. Its internal consistency and factor structure have not been reported among university students.Objective: To calculate the internal consistency and explore the factor structure of three versions of the Zung's rating instrument for anxiety disorders among university students.Method: Two-hundred and twenty-one medicine and psychology students of a private university in Cartagena, Colombia, completed the 20-item version of the Zung's rating instrument for anxiety disorders. The mean of age of students was 20.5 years (SD=2.6), 64.4% were women, and 54.3% studied medicine. Cronbach alpha was computed and exploratory factor analysis was done for the three versions.Results: The 20-item version of the Zung's rating instrument for anxiety disorders presents Cronbach alpha coefficient of 0.77 and three principal factors accounted for 40.1% of the total variance. The 10-item version showed Cronbach alpha of 0.83 and two-dimensional structure responsible of 54.0% of the total variance. The 5-item version showed Cronbach alpha of 0.74 and one-dimensional structure accounted for 49.5% of the total variance.Conclusions: The 10- and 5-item version of the Zung's rating instrument for anxiety disorders present better psychometric properties than the original 20-item version. It is necessary to estimate the properties of these versions compared with a gold standard. 2009 artículo científico 0120-8322 https://www.redalyc.org/articulo.oa?id=28340110 en http://www.redalyc.org/revista.oa?id=283 Colombia Médica application/pdf Universidad del Valle Colombia Médica (Colombia) Num.1 Vol.40 |
| title | Study of internal consistency and factor structure of three versions of the Zung's rating instrument for anxiety disorders |
| topic | Medicina Students University Factor analysis Validation study Internal consistency |
| url | https://www.redalyc.org/articulo.oa?id=28340110 |