Instructor Keith McCormick covers simple linear regression, explaining how to build effective scatter plots and calculate and interpret regression coefficients. He also dives into the challenges and assumptions of multiple regression and steps through three distinct regression strategies. To wrap up, he discusses some alternatives to regression, including regression trees and time series forecasting.
- Building effective scatter plots in Chart Builder
- Challenges and assumptions of multiple regression
- Checking assumptions visually
- Creating dummy codes
- Creating and testing interaction terms
- Understanding partial and part correlations
- Spotting problems and taking corrective action
- Dealing with multicollinearity
Skill Level Intermediate
- [Keith] I'm Keith McCormick, and I'm an active consultant, conference speaker, and book author. Regression is the technique that everybody thinks they know, but let me try to persuade you that it's critical to learn regression thoroughly. What I really enjoy about this topic is how understanding the concepts well allows you to solve real world problems. So what are we gonna cover? We're going to have a real focus on concepts, even though we'll be using SPSS statistics throughout. I hope that if you are a user of R or SAS or some other tool that you'll benefit greatly from a thorough review of the basics.
We won't be shy about software options. Since we'll be using SPSS throughout, we'll be exploring lots of optional settings in considerable detail. One of our big themes will be what can go wrong: how to check to see if the assumptions of this technique are met, and what to do if you fail them. Another big theme that constitutes about a fourth of the course is three distinct regression strategies and when you should use them.
Finally, we're gonna talk about several alternatives to regression, what makes them different, and when they're a better fit. I hope you enjoy the course.
1. Simple Linear Regression
2. Introduction to Multiple Linear Regression
3. Dummy Code and Interaction Terms
Creating dummy codes8m 4s
4. Three Regression Strategies
5. Spotting Problems and Taking Corrective Action
6. Other Approaches to Regression
What's next1m 35s
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