资料来源于 Andrew F. Hayes，网址为http://www.processmacro.org/index.html
以下为更新内容：Version 4.1 (released 20 April 2022)
A new model 0 was added (available only through syntax) for regression analysis with no moderation or mediation component.New output is now available indicating which cases were deleted prior to analysis. A new option for inference about a weighted sum of regression coefficients is not available with the linsum option in syntax.A bootstrap confidence interval for the sum of direct and indirect effects in a mediation model can now be generated with the total option for some models in which it is not possible to estimate the total effect in the usual way by regressing Y on X without the mediators.