无法忍受不确定性量表中文版的修订及信效度分析

Reliability and validity of the Chinese revised version of the intolerance of uncertainty scale

目的探讨无法忍受不确定性量表（IUS）中文修订版的信度和效度。方法采用中文版IUS先后共测量了930名大学生，选取45名大学生3周后进行重测。采用焦虑自评量表和自评抑郁量表作为效标。结果修订后的IUS共21个项目，探索性因素分析得到一个两因子结构，分别命名为“消极信念和情绪”与“消极行为和自我参照”，累积解释率为42．09％。验证性因素分析结果（X。／af=2．82，GFI=0．90，TLI=0．90，CFI：0．91，RMSEA=0．065）表明两因子结构较为理想。总量表及两个分量表的内部一致性信度分别为0．929，0．885和0．864，重测信度分别为0．782，0．766和0．714。IUS总分及其2个因子分均与焦虑、抑郁得分显著正相关（r=0．489～0．575，P〈0．01）。结论IUS中文修订版具有较好的信度和效度，可作为我国成人无法忍受不确定性的有效评估工具。

Objective To explore the reliability and validity of the Chinese revised version of the Intoler- ance of uncertainty scale （IUS）. Methods A total of 930 college students completed the IUS. 45 college students participated in the retest 3 weeks later. The self-rating anxiety scale （SAS） and the self-rating depression scale （SDS） were used as criterions for assessment of the validity of the Chinese revised version of IUS. Results The Chinese revised version of IUS contained 21 items. Exploratory factor analysis found a two-factor model （ negative belief and emotional experience, behavioral dysfunction and negative self-reference ） with a cumulative variance contribution rate of 42.09%. And the results of Confirmatory factor analysis （X 2/df =2.82 ,GFI =0.90 ,TLI = 0.90 ,CFI =0.91 ,RMSEA = 0. 065 ） indicated that this model provided a reasonable good fit for Chinese college students. The Cronbach oL of internal consistency reliability were good for IUS and two subscales, which were 0.929,0. 885 and O. 864,respectively. The test-retest reliabilities for IUS and two subscales were 0. 782,0. 766 and 0. 714 respectively. The IUS scores were positively correlated with the scores of SAS and SDS （ r = 0.489 ~ 0. 575, P〈 0. 001 ）. Conclusion It suggests that the Chinese revised version of IUS has good reliability and valid- ity, which is qualified enough for relevant research and applications for Chinese adults.