请问各位大神，调节倒U型关系调节效应图如何绘制

您好，请问您这个图在哪篇文章中看到的啊

参考http://www.jeremydawson.co.uk/slopes.htm
里面的Quadratic_two-way_interactions   2-way_logistic_interactions   2-way_poisson_interactions
就可以画出各种曲线关系的调节模型图，自己尝试一下。
常数项会影响曲线的象限，注意一下

喵小黑123 发表于 2017-9-15 09:31
我是同时放入一个回归中进行的，不知道是否准确

同时放进去是对的！

sean9 发表于 2018-7-19 20:50
参考http://www.jeremydawson.co.uk/slopes.htm
里面的Quadratic_two-way_interactions   2-way_logistic_ ...

受教了

资源搬运工 发表于 2018-8-6 11:30
受教了

但我也出现了问题，放进去之后图像倒U型不明显。请问变量值的均值和标准差是填0和1还是实际跑出来的值？

A note about standardisation of variables. Standardised variables are those that are both centred around zero and are scaled so that they have a standard deviation of 1. Personally, I prefer to use these when testing interactions because the intepretation of coefficients can be slightly simpler. Some authors, such as Aiken and West (1991), recommend that variables are centred (but not standardised). The results obtained should be identical whichever method you use. If you prefer to analyse centred (but not standardised) variables, you can use the "unstandardised" versions of the Excel worksheets, and enter the mean of the variables as zero.

lilyyi 发表于 2018-9-1 13:45
但我也出现了问题，放进去之后图像倒U型不明显。请问变量值的均值和标准差是填0和1还是实际跑出来的值？

A note about standardisation of variables. Standardised variables are those that are both centred around zero and are scaled so that they have a standard deviation of 1. Personally, I prefer to use these when testing interactions because the intepretation of coefficients can be slightly simpler. Some authors, such as Aiken and West (1991), recommend that variables are centred (but not standardised). The results obtained should be identical whichever method you use. If you prefer to analyse centred (but not standardised) variables, you can use the "unstandardised" versions of the Excel worksheets, and enter the mean of the variables as zero.

资源搬运工 发表于 2018-9-1 15:58
A note about standardisation of variables. Standardised variables are those that are both centred  ...

意思是说如果做对中处理的话则均值为0.标准差呢？还是填实际的么？

楼主，如何验证调节变量对U型曲线有调节关系

您好 我是变量是倒U型关系，画图可以只将极值后的调节效应图带进去吗