在进行模型生成的时候,方差巨大无比,还出现不了路径系数,我想请问一下:
1、拟合结果说“The model is probably unidentified. In order to achieve identifiability, it will probably be necessary to impose 6 additional constraints.”我该如何给模型增加6个约束?原则是什么?如何判断需要加约束?
2、在进行拟合时提示说“the following variables are endogenous ,but have no residual (error) variables”,那么我该怎么增加残差变量?该加多少合适呢?加在哪里?
3、如果模型拟合得出了路径系数和因子负荷等,我改如何计算潜变量的得分?