Proving the Linear Assumption for Multiple Regression with Regression Diagnostics - Plots & Testing

Get the regression Diagnostics infographic checklist at https://www.stat59.com/subscriptions/subscriber-create?oid=41&ref=youtube "The assumptions of linearity and normality should be confirmed prior to using linear regression to compare the variables." This was an actual peer-review comment from one of the first papers I wrote using linear regression. It's easy to be confused and frustrated with this type of  comment, especially after you have spent countless hours running your experiment and writing up your results However, in this case, the reviewer was right. When linear regression is used for data analysis, the analyst must prove that the data properly fit a linear model. This is called regression diagnostics.  and it's a necessary part of any linear regression analysis. In this video, I will show you how the addition of four simple plots and one simple statistical test to your study can help you build a slam-dunk linear regression model.