自己挖了一个坑说一个中介变量对因变量的作用强于另一个中介变量对因变量的作用，reviewer 现在让我做chi-square difference test 。原意见如下： In the discussion section, authorsargue that integrated regulation has a stronger effect than identifiedregulation on customer compliance. This may not be true. In order to verify thesignificant difference, authors need to conduct achi-square difference test. First, estimate two paths to be equal(constrained model). Second, estimate two paths freely (unconstrained model).Then, compare two models if the chi-square value is significantly different.Otherwise, authors cannot argue which one is stronger.这个该怎么做啊？