Multicollinearity in Multiple Regression
Students & Researchers
What is Multicollinearity?
In this article we define and discuss multicollinearity in
"plain English," providing students and researchers with basic
explanations about this often confusing topic. Suggestions for identifying and assessing multicollinearity are provided.
Regression and Multicollinearity
This article addresses the problems that
multicollinearity can cause when conducting regression analyses. Suggestions for
decreasing multicollinearity when conducting regression analyses are discussed.
Identifying Multicollinearity in Multiple Regression
In this article we discuss in great depth how to identify and assess multicollinearity. We review
how to use SPSS collinearity diagnostics (e.g. Variance Inflation Factor - VIF), correlations and coefficients to
assess the presence & extent of multicollinearity in multiple regression.
What Can I Do About Multicollinearity?
This article discusses ways to decrease or eliminate multicollinearity when conducting regression analyses. Methods for eliminating,
combining and centering variables to reduce and eliminate multicollinearity are