简式睡眠信念和态度量表的信效度研究

目的 研究简式睡眠信念和态度量表（DBAS-16）的信度及效度.方法 采用方便抽样,被试为失眠或伴有失眠症状的轻中度抑郁症、焦虑症的门诊患者,所有被试完成DBAS-16、匹兹堡睡眠质量指数（PSQI）、抑郁自评量表（SDS）、焦虑自评量表（SAS）.其中30名被试在2周后再次进行DBAS-16的评定.结果 共230人参与评定,收回有效问卷212份.总量表Cronbachα系数为0.786,各分量表Cronbachα系数为0.424～0.703.总分半信度系数为0.775,各分量表的分半信度系数为0.424～0.719.各条目与总分的相关为0.602～0.283（均P＜0.01）.总重测信度为0.928,各分量表的重测信度为0.709～0.907（均P＜0.01）.采用验证性因素分析法估计结构效度,拟合指数：x2/df值为1.623,调整拟合优度指数（AGFI）为0.882,近似误差均方根（RMSEA）为0,054,递增拟合指数（IFI）为0.899,非范拟合指数（NNFI）为0.871,相对拟合指数（CFI）为0.895.量表总分与PSQI、SDS、SAS总分的Person相关系数分别为-0.311,-0.192,-0.162,（均P＜0.01）.结论 简式睡眠信念和态度量表有较好的信度和效度.

Reliability and validity of the brief version of dysfunctional beliefs and attitudes about sleep

Objective To evaluate the reliability and validity of the brief version of dysfunctional beliefs and attitudes about sleep（DBAS-16）.Methods Participants were out-patients who with insomnia or insomnia comorbided depression disorder or anxiety disorder.All of them were assessed by DBAS-16,Pittsburgh sleep quality index （PSQI）,self-rating depression scale （SDS）,self-rating anxiety scale （SAS）.30 of them were evaluated by DBAS-16 two weeks later.Results 230 patients were assessed,212 pieces of questionnaire with integral answers were collected,The Cronbach α Coefficient of DBAS-16 was 0.786,the Cronbach α coefficients of four subscales were 0.424-0.703.Split-half reliability coefficient of total score was 0.775,split-half reliability coefficient of four subscales were 0.424-0.719.Item-total correlation coefficients ranged from 0.602 to 0.283（all P〈0.05）.The testretest reliability coefficient was 0.928,and coefficient of each subscales ranged from 0.709 to 0.907 （all P〈0.05）.Confirmatory factor analysis was used to estimate the construct validity.The fit indices：x2/dfwas 1.623,the adjusted goodness of fit index （AGFI） was 0.882,root mean square error of approximation （RMSEA） was 0.054,incremental fit index （IFI）was 0.899,non-normed fit index （NNFI） was 0.871,comparative fit index （CFI） was 0.895.Total DBAS-16 score significantly correlated with PSQI（r=-0.311,P〈0.01）,SDS（r=-0.192,P〈0.01）,SAS（r=-0.162,P〈0.01）.Conclusion The reliability and validity of the brief version of DBAS-16 are adequate.