Creating Variables: Retention and Attrition

Now that we’ve highlighted some basic variables in our Creating Variables series, I think we’re ready to move on to a variable that is a little trickier to create: retention. The retention variable we’ll create will represent whether or not a freshman is retained from...

Creating Variables: Age

  Hi all! Today I’d like to a cover a pretty universally predictive variable: age. Age can be created in relation to the date of a particular event (like an application date or a mailing date), or as a reflection of age today, at this moment. Either way, age is often...
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