短式孤独感量表测评中学生的效度和信度

Validity and reliability of the Short-form of the University of California Los Angeles Loneliness Scale among middle school students

目的:检验短式孤独感量表(ULS-8)在中学生中的效度和信度,并探讨条目表述效应以及跨性别和跨时间等值性。方法:选取中学生3600名,采用ULS-8、自尊量表(SES)和一般健康问卷.(GHQ)进行调查,间隔11个月后对其中300名学生进行再测。结果:探索性因子分析、平行分析以及最小平均偏相关分析均显示ULS-8为单维结构,验证性因子分析结果良好(x^(2)/df=12.22,TLI=0.93,CFI=0.95,RMSEA=0.07,SRMR=0.04);ULS-8得分与SES得分负相关(r=-0.54),与GHQ得分正相关(r=0.48),均P<0.001;ULS-8的内部一致性Cronbach α系数为0.81;正向条目表述效应并不影响ULS-8的单维结构(△AIC>10),ULS-8在性别和时间变量.上的形态等值、弱等值、强等值和严格等值模型均成立(△TLI、△CFI均<0.01)。结论:短式孤独感量表测评中学生有良好的效度和信度。

Objective:To test the validity and reliability of the short form of the University of California Los Angeles Loneliness Scale(ULS 8)among middle school students,and analyze the item wording effct and meas-urement invariance across gender and time.Methods:Totally 3600 middle school students were investigated with the ULs-8,Self-Esteem Scale(SES)and General Health Questionnaire(GHQ),and 300 students of them were in-vestigated again after 11 months.Results:Exploratory factor analysis(EFA),Parallel Analysis(PA)and Minimum Average Partial(MAP)all showed a one-dimensional structure of ULS-8,and the results of confirmatory factor a nalysis were good.The ULS 8 scores were negatively correlated with SES scores(r=-0.54,P<0.001)and posi-tively correlated with GHQ-12 scores(r=0.48,P<0.001).The Cronbach alpha coefficient of ULS-8 was 0.81.The positive item wording effect does not affect the single dimensional structure of ULS-8(△AIC>10).The configural,weak,strong and strict invariance of the ULS 8 across gender and time were all acceptable(△TLI,△CFI<0.01).Conclusion:It suggests that the short-form of the University of California Los Angeles Loneliness Scale has good validity and reliability in middle school students,which could effectively measure the level of loneliness.