Shandong University, School of Public Health Center for Suicide Prevention Research, China.
Arch Suicide Res. 2012;16(1):85-94. doi: 10.1080/13811118.2012.641440.
This study evaluated the validation of STAI Trait-Anxiety Scale in suicide cases and community living controls in rural China. The participants were 392 suicides and 416 controls. Cronbach's Alpha was computed to evaluate the internal consistency. The Spearman Correlation Coefficient between Trait-Anxiety Scale and other instrument was calculated to evaluate the external validity, and the Exploratory Factor Analysis was used to evaluate the construct validity. The results showed the Cronbach's Alpha was .891 and .787 respectively in case and control groups. Most of the correlations between instruments were significant. We found 2 factors in cases and 3 factors in controls. We could cautiously infer that the Trait Anxiety Scale was an adequate tool to measure trait anxiety through proxy data in suicide victims and living controls in rural China.
本研究评估了 STAI 特质焦虑量表在中国农村自杀病例和社区生活对照中的有效性。参与者包括 392 名自杀者和 416 名对照者。计算克朗巴赫的阿尔法系数以评估内部一致性。计算特质焦虑量表与其他工具之间的斯皮尔曼相关系数以评估外部有效性，并使用探索性因素分析评估结构有效性。结果表明，病例组和对照组的克朗巴赫的阿尔法系数分别为 0.891 和 0.787。大多数工具之间的相关性都很显著。我们在病例中发现了 2 个因素，在对照组中发现了 3 个因素。我们可以谨慎地推断，特质焦虑量表是一种通过中国农村自杀受害者和生活对照的代理数据来测量特质焦虑的有效工具。
