用amos,显示错误，残差的方差估计为负
[i] 本帖最后由 jfamos 于 2011-11-24 20:34 编辑 [/i][b]The following variances are negative.[/b]
e29 e30 e32
-0.016 -0.094 -0.011
残差不能为负吗？为负说明什么问题，是说模型有问题吗？
载入中......
[img]/attachments/201111/ET29375201111251343081.gif[/img]
淘宝网购物自动返论坛币 你这个好像是说方差为负的吧？ [i] 本帖最后由 jfamos 于 2011-11-24 20:31 编辑 [/i][indent]xjg1983 发表于 2011-11-24 20:19 [img]/attachments/201111/ET29375201111251343082.gif[/img]
你这个好像是说方差为负的吧？[/indent]嗯，我上边显示的变量是我模型中内因潜变量的残差This solution is not admissible
This message indicates that some variance estimates are negative, or that some exogenous variables have an estimated covariance matrix that is not positive definite. It suggests either that your model is wrong or that the sample is too small (J?reskog & S?rbom, 1984).
J?reskog, K.G. & S?rbom, D. (1984). LISREL-VI user's guide (3rd ed.). Mooresville, IN: Scientific Software.
It is possible to prevent the occurrence of negative variance estimates, and it may even be possible to prevent the occurrence of inadmissible solutions in general, by restricting the search for a solution to admissible parameter values. However, Amos does not do this.
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