目的 验证中文版持续性思维问卷(perseverative thinking questionnaire,PTQ)在新兵群体的信度和效度,并探讨其最佳界值.方法 采用整群抽样法抽取某部新兵1675名进行问卷调查,采用SPSS 26.0与Amos 26.0软件进行信效度分析,应用受试者工作特征(receiver operating characteristic,ROC)曲线确定PTQ预测抑郁和焦虑症状的最佳界值.结果 中文版PTQ及其子量表的Cronbach'α系数为0.742～0.935,分半系数为0.632～0.940,重测系数为0.535～0.764.中文版PTQ总分和子量表分数与反刍、担忧、抑郁、焦虑均呈正相关关系(P＜0.01).验证性因素分析支持PTQ的二阶单因子模型[近似误差均方根(root mean square error,RMSEA)=0.087、比较拟合指数(comparative fit index,CFI)=0.922、塔克-刘易斯指数(Tucker-Lewis index,TLI)=0.905、拟合优度指数(goodness of fit index,GFI)=0.900、标准拟合指数(normed fit index,NFI)=0.916].中文版PTQ预测抑郁和焦虑症状的最佳界值均为15分,此时曲线下面积(area under the curve,AUC)分别为0.805、0.851,灵敏度分别为77.13％、87.89％,特异度分别为71.96％、68.35％.结论 中文版PTQ在我国新兵中具有良好的信效度,且预测抑郁和焦虑症状的推荐最佳界值为15分.
Reliability and Validity Test and Optimal Critical Value Study for Predicting Depression and Anxiety of Perseverative Think-ing Questionnaire Among Recruits
Objective To test the reliability and validity of the Chinese version of the perseverative thinking ques-tionnaire(PTQ)among recruits,and explore its optimal critical value.Methods A total of 1675 recruits from a certain unit were seleced for a questionnaire survey by cluster sampling method,reliability and validity analysis was analyzed by SPSS 26.0 and Amos 26.0 software,and optimal critical value of PTQ for predicting depression and anxiety symptoms was determined by receiver operating characteristic(ROC)curve.Results The Cronbach'α coefficients of the Chinese version of PTQ and its subscales ranged from 0.742 to 0.935,the split-half coefficients ranged from 0.632 to 0.940,the test-retest coefficient ranged from 0.535 to 0.764.The total score and subscale scores of the Chinese version of PTQ were positively correlated with rumination,worry,depression and anxiety(P＜0.01).Confirmatory factor analysis sup-ported the second-order single-factor model of PTQ[root mean square error(RMSEA)=0.087,comparative fit index(CFI)=0.922,Tucker-Lewis index(TLI)=0.905,goodness of fit index(GFI)=0.900,normed fit index(NFI)=0.916].The optimal critical value of the Chinese version of PTQ for predicting depression and anxiety symptoms was 15,the area under the curve(AUC)were 0.805 and 0.851,the sensitivities were 77.13％and 87.89％,and the specificities were 71.96％and 68.35％respectively.Conclusion The Chinese version of PTQ shows good reliability and validity among Chinese recruits,and the recommended optimal critical value for predicting depression and anxiety symptoms is 15.
Perseverative thinking questionnaireRepetitive negative thinkingReliabilityValidityCritical value
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