结构方程论坛SEM-Structural·Equation·Modeling's Archiver

统计分析 发表于 2011-7-2 09:59

求助,结构方程模型路径系数问题

我的结构方程模型中一条路径系数大于1(已经标化),Notes  for model 里显示“The following variances are negative”。不知道为什么会这样,有什么解决办法吗?

结构方程爱好者 发表于 2011-7-2 10:04

自己顶一下。呼呼,急盼高手帮忙解决啊。

华南心理学 发表于 2011-7-2 10:09

<strong> 1# <i>personlee</i> </strong> <br /> <br /> 你看错了,应当是载荷系数大于1吧?

wmhhotel 发表于 2011-7-2 10:14

If the error variance is not big (i.e., not too far from zero), this problem could be solved by reestimating the model through constraining the error variances to zero or a small positive number. You can place equality constraints on certain parameters known to yield estimates that are aproximately equal, through the application of the critical ratio difference (CRDIFF) method in AMOS.

偏最小二乘 发表于 2011-7-2 10:19

此為heywoodcase的情形

angel 发表于 2011-7-2 10:24

这是个问题!

freeshuju 发表于 2011-7-2 10:29

出现负的方差说明你的模型有问题啊!也有可能问题出在原始问卷上!

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