拓展后的GGUM在LOT-R中的适用性分析

Analysis of the Fit of Extended Generalized Graded Unfolding Model to the Revised Life Orientation Test

该研究对拓广等级展开模型(GGUM)进行了拓展,取消GGUM中关于主观反应类别阈限对称的假设,并将拓展之后的新模型和GGUM同时用于生活取向测验修订版(LOT-R)的被试反应数据分析,采用新编的单项目、两项目对和三项目组χ2/df计算程序计算和比较新模型和GGUM在该测验数据上的拟合差异。结果显示,新编程序与Stark等人开发的MODFIT程序具有同样的有效性,新模型在这些指标上的值显著小于GGUM,并且均小于3,表明新模型较GGUM更适合于分析LOT-R的反应数据,说明新模型更适用于分析具有多个评定等级的人格测验数据。根据以上结果,该研究认为,未来人格测验的数据分析应该使用没有对主观反应类别阈限进行对称限定的新拓展的模型更合理。

This research extended generalized graded unfolding model（GGUM） to a new model,subjective category thresholds of which were not symmetrical.The response data of the revised life orientation test were analyzed by this new model and GGUM.The fit of these two model to the data was compared.Results displayed that the new model fit the data better than GGUM.By these results,the authors of this study suggested that the new model was more fit to analyze the graded data of personality,and GGUM can be replaced by this model and other more complex models.