›› 2019, Vol. 39 ›› Issue (1): 84-.doi: 10.3969/j.issn.1674-8115.2019.01.016

• Original article (Public health) • Previous Articles     Next Articles

Reliability and validity of defeat scale on anxiety and depression in medical students

TANG Hua1, WANG Su-ping1, 2, GONG Rui-jie3, WANG Ze-zhou2, CAI Yong2   

  1. 1. Department of Student Affairs, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China; 2. Shanghai Jiao Tong University School of Public Health, Shanghai 200025, China; 3. Department of Disease Control and Planned Immunity, Shanghai Xuhui Center for Disease Control and Prevention, Shanghai 200237, China
  • Online:2019-01-28 Published:2019-02-27
  • Supported by:
    National Natural Science Foundation of China, 71673187; Research Foundation of Shanghai Municipal Commission Health and Family Planning, 201540332; Dedicated Research Foundation of Innovation and Development of School Moral Education in Shanghai, 2016-dycx-214; Shanghai College Students Career Development Education Center in 2018—2019, HJWX20180411

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Abstract: Objective · To introduce the defeat scale (DS) and evaluate its reliability and validity among Chinese junior medical students. Methods · With convenience sample method, 665 medical students were examinedthe Chinese version of DS, and 29 of them were retested one month later. The structural validity, criterion validity, and content validity of DS were accessedfactor analysis and correlation analysis. The reliability of DS was evaluatedinternal consistency reliability (Cronbachs α coefficient), split-half reliability (Spearman-Brown coefficient), and retest reliability. Results · The exploratory factor analysis showed that two factors including decadence (13 items) and low sense of achievement (3 items) could be extracted. Confirmatory factor analysis showed that model revisedtwo factors fitted well (χ2/df7.199, RMSEA0.097, CFI0.925). The correlation coefficient between each item of content validity and its sub-dimension were among 0.678-0.889. The correlation coefficient was 0.738 between DS and patients health questionnaire depression scale-9 item, and -0.712 between DS and Rosenberg self-esteem scale. The Cronbachs α coefficient of DS was 0.933, the Spearman-Brown coefficient was 0.925, and the retest reliability was higher than 0.900. Conclusion · The DS has good validity and reliability among Chinese junior medical students.

Key words: defeat scale (DS), medical student, reliability, validity

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