Problems Caused by Categorizing Continuous Variables

I just came across this great article by Frank Harrell:  Problems Caused by Categorizing Continuous Variables

It’s from the Vanderbilt University biostatistics department, so the examples are all medical, but the points hold for any field.

It goes right along with my recent post, Continuous and Categorical Variables: The Trouble with Median Splits.

Four Critical Steps in Building Linear Regression Models

While you’re worrying about which predictors to enter, you might be missing issues that have a big impact your analysis. This training will help you achieve more accurate results and a less-frustrating model building experience.

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