怀特利指数中文版的信度效度分析

目的 评估怀特利指数中文版（Whiteley Index-Chinese Version，WI-CV）的心理测量学特征。方法 依据ICD-10诊断标准选取抑郁症、广泛性焦虑障碍、惊恐障碍、强迫症、躯体形式障碍共291例，以及正常被试190例，填写WI-CV、疾病态度量表中文版（Illness Attitude Scale-Chinese Version，IAS-CV）、贝克抑郁量表第二版（Beck Depression Inventory-Ⅱ，BDI-Ⅱ）和贝克焦虑量表（Beck Anxiety Inventory，BAI）。结果 WI-CV探索性因子分析产生3个因子，分别是疾病信念，疾病恐惧和躯体先占观念；WI-CV总分和IAS-CV、BAI、BDI-Ⅱ得分呈正相关（r=0.69、0.50、0.38，P<0.01）；躯体形式障碍组WI-CV得分高于抑郁症组、其他焦虑障碍组、强迫症组和正常被试组［（7.24±2.89）分vs（4.77±2.99）分、（5.07±3.05）分、（5.91±2.73）分、（2.52±2.58）分，均P<0.05］。WI-CV总分和各因子的Pearson相关为0.91、0.76、0.76；WI-CV总分的Cronbach's α系数为0.82，各因子Cronbach's α系数为0.53~0.71，WI-CV分半系数为0.83，各因子的分半系数为0.59~0.74。结论 WI-CV具有良好的心理测量学特性，可在临床和研究工作中试用。

Reliability and validity of the whiteley index-Chinese version

Objective To the psychometric characteristics of patients bothered by anxiety disorder with the Chinese Version of the scale Whiteley Index (WI-CV). Methods Totally we enrolled 291 patients with somatoform disorders, major depressive disorder, generalized anxiety disorder, panic disorder, and obsessive-compulsive disorder diagnosed with ICD-10 from five hospitals in Beijing, and 190 normal people were enrolled as the control. They were assessed with WI-CV, Chinese Version of Illness Attitude Scale(IAS-CV), Beck Depression Inventory-Ⅱ(BDI-Ⅱ), and Beck Anxiety Inventory(BAI). Results The exploratory factor analysis resulted in 12 items and finally three factors, disease conviction, disease phobia, and bodily preoccupation. The total score of WI-CV was correlated with IAS-CV scores (r=0.69, P<0.01), BAI scores (r=0.50, P<0.01) and BDI-Ⅱ scores (r=0.38, P<0.01). Factor disease convince was correlated with IAS-CV scores (r=0.60, P<0.01), BAI scores (r=0.51, P<0.01) and BDI-Ⅱ scores (r=0.39, P<0.01). Factor disease phobia was correlated with IAS-CV scores (r=0.60, P<0.01), BAI scores (r=0.25, P<0.01) and BDI-Ⅱ scores (r=0.14, P>0.01).Factor bodily preoccupation was correlated with IAS-CV scores (r=0.49, P<0.01), BAI scores (r=0.41, P<0.01) and BDI-Ⅱ scores (r=0.37, P<0.0 1). Patients with somatoform disorders (7.24±2.89) had higher scores than patients with other disorder, such as depression (4.77±2.99), anxiety (5.07±3.05), obsessive compulsive disorder (5.91±2.73), and normal controls (2.52±2.58). Obsessive compulsive disorder had higher scores than other four disorders. Normal controls get the lowest score than other patients. The Cronbach's α coefficients were 0.82 for WI-CV total score and 0.53-0.71 for each subscale. Pearson coefficient measured between total score and factor score were 0.91, 0.76, and 0.76. Split-half coefficient of WI-CV was 0.83, and Split-half coefficient of subscales were 0.59-0.74. Conclusion It suggested that the WI-CV has good psychometric features and it may be trialed in clinical practice and research in China.