Mystakidou Kyriaki, Tsilika Eleni, Parpa Efi, Galanos Antonis, Vlahos Lambros
Pain Relief and Palliative Care Unit, Areteion Hospital, School of Medicine, University of Athens, Athens, Greece.
J Pain Symptom Manage. 2007 Apr;33(4):454-61. doi: 10.1016/j.jpainsymman.2006.09.023.
To develop the Greek version of the Impact of Event Scale-Revised (IES-R-Gr), assess its psychometric properties, and finally to examine the impact of cancer diagnosis to a palliative care patient sample, the IES-R was translated into Greek using the "forward-backward" procedure. It was administered twice, at one-week intervals, to 82 eligible patients with advanced cancer. Together with the IES-R-Gr scale, the patients also completed the Hospital Anxiety and Depression (HAD) Scale. Reliability was assessed in terms of internal consistency (Cronbach's alpha coefficients) and test/retest (Spearman's r value and Kendall's tau-b). Construct validity was demonstrated through association with the HAD Scale, and convergence and discriminative validity and interscale correlations were also assessed. The Greek version of the IES-R had Cronbach's alphas for the intrusion, avoidance, and hyperarousal scales of 0.72, 0.77, and 0.85, respectively. Overall test-retest reliability was satisfactory at P<0.0005. Satisfactory construct validity was supported by the correlation analysis between the IES-R-Gr subscales and anxiety and depression. Factor analysis yielded three factors, explaining 57.26% of the variance. Interscale and interitem correlations were found satisfactory at P<0.0005. These results demonstrate that the IES-R-Gr is an instrument with satisfactory psychometric properties and is a valid research tool for the impact of cancer diagnosis in advanced cancer patients.
为了开发事件影响量表修订版的希腊语版本（IES-R-Gr），评估其心理测量特性，并最终研究癌症诊断对姑息治疗患者样本的影响，采用“前后”程序将IES-R翻译成希腊语。对82名符合条件的晚期癌症患者每隔一周进行两次施测。患者除了完成IES-R-Gr量表外，还完成了医院焦虑抑郁量表（HAD）。从内部一致性（克朗巴哈系数）和重测（斯皮尔曼r值和肯德尔tau-b）方面评估信度。通过与HAD量表的关联证明结构效度，同时也评估收敛效度、区分效度和量表间相关性。IES-R的希腊语版本在侵入、回避和过度唤醒量表上的克朗巴哈系数分别为0.72、0.77和0.85。总体重测信度在P<0.0005时令人满意。IES-R-Gr分量表与焦虑和抑郁之间的相关分析支持了令人满意的结构效度。因子分析产生了三个因子，解释了57.26%的方差。在P<0.0005时，量表间和项目间的相关性令人满意。这些结果表明，IES-R-Gr是一种具有令人满意心理测量特性的工具，是研究癌症诊断对晚期癌症患者影响的有效研究工具。
