Generally speaking, if the scatter plots of the unstandardized predicted value (PRE_1) and the studentized residual (SRE_1) are horizontal bands, it means that there is a linear relationship between the dependent variable and all independent variables in multiple linear regression. The results suggest that this study satisfies the assumption that there is a linear relationship between the dependent variable and all independent variables. This figure can also be used to verify equal variance. If equal variance exists, the residuals corresponding to different predicted values should be roughly the same. That is, the points in the figure are evenly distributed, and no special distribution shape appears. If the scatter plot is not evenly distributed, forming a funnel or fan, then the regression will not have equal variance.
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