Linear Regression

 Online Workshops

• Linear Models
• Interpreting (Even Tricky) Regression Coefficients

The Craft of Statistical Analysis Free Webinars

• Interpreting Linear Regression Coefficients: ​​​​​​​A Walk Through Output
• Four Critical Steps in Building Linear Regression Models

Statistically Speaking Member Trainings

• Multicollinearity
• Hierarchical Regressions
• Using Excel to Graph Predicted Values from Regression Models
• ANCOVA (Analysis of Covariance)
• Dummy and Effect Coding
• Transformations & Nonlinear Effects in Linear Models
• The Multi-Faceted World of Residuals
• Using Transformations to Improve Your Linear Regression Model
• Marginal Means, Your New Best Friend
• Segmented Regression
• Quantile Regression: Going Beyond the Mean

Articles at The Analysis Factor

• Should I Specify a Model Predictor as Categorical or Continuous?
• What Is Specification Error in Statistical Models?
• Steps to Take When Your Regression (or Other Statistical) Results Just Look…Wrong
• Understanding Interactions Between Categorical and Continuous Variables in Linear Regression
• The Distribution of Independent Variables in Regression Models
• Differences in Model Building Between Explanatory and Predictive Models
• Why ANOVA is Really a Linear Regression, Despite the Difference in Notation
• The Impact of Removing the Constant from a Regression Model: The Categorical Case
• When to leave insignificant effects in a model
• Model Building Strategies: Step Up and Top Down
• Five Common Relationships Among Three Variables in a Statistical Model
• Can a Regression Model with a Small R-squared Be Useful?
• Confusing Statistical Terms #5: Covariate
• Making Dummy Codes Easy to Keep Track of
• 3 Situations when it makes sense to Categorize a Continuous Predictor in a Regression Model
• Likert Scale Items as Predictor Variables in Regression
• Why ANOVA and Linear Regression are the Same Analysis
• Assessing the Fit of Regression Models
• Understanding Interaction Between Dummy Coded Categorical Variables in Linear Regression

Stata

• Incorporating Graphs in Regression Diagnostics with Stata
• Linear Regression in Stata: Missing Data and the Stories it Might Tell
• Using the Same Sample for Different Models in Stata
• Hierarchical Regression in Stata: An Easy Method to Compare Model Results

R

• Linear Models in R: Diagnosing Our Regression Model
• Linear Models in R: Plotting Regression Lines
• R Is Not So Hard! A Tutorial, Part 5: Fitting an Exponential Model
• R Is Not So Hard! A Tutorial, Part 4: Fitting a Quadratic Model

SPSS

Order affects Regression Parameter Estimates in SPSS GLM