Andrew Gelman on Multilevel Modeling
Statistical Horizons is thrilled to announce that Andrew Gelman will be speaking in our Distinguished Speaker Series on May 31st. The...
Mar 22, 2023
Qualitative Coding Simplified
The term ‘qualitative coding’ is a point of constant confusion for researchers. Jargon abounds. Depending on which textbook you open you...
Mar 15, 2023
Getting the Lags Right – A New Solution
Seven years ago, I wrote a blog post about an alarming statistical problem discovered by Stephen Vaisey and Andrew Miles (hereafter...
Oct 24, 2022
Is Dummy Variable Adjustment Ever Good for Missing Data?
For many years, one of the more popular ways of handling missing data was a technique known as dummy variable adjustment...
Sep 27, 2022
When Do Suppressor Effects Occur?
When doing regression analysis, most data analysts expect that the coefficient associated with a predictor variable will get smaller (closer to...
Aug 30, 2022
Is OLS BLUE or BUE?
If you’ve ever taken a course on linear regression, you probably learned that ordinary least squares (OLS) is BLUE—the best linear...
Jul 12, 2022
Making Your First GitHub R Project
Increasingly, academic scholars, data scientists, and quantitative researchers are turning to GitHub for collaboration and to share data, code, and results. GitHub allows...
Aug 12, 2021
An Update on The MatchIt Package in R
One of the things we hope to do at Code Horizons is help steer you toward the best tools to meet...
Dec 08, 2020
Better Predicted Probabilities from Linear Probability Models
In two earlier posts on this blog (here and here), my colleague Paul von Hippel made a strong case for using...
Apr 24, 2020
Introducing Code Horizons
We are thrilled to introduce a new addition to the Statistical Horizons family — Code Horizons. This new initiative emerges from...
Jan 24, 2020
How many imputations do you need?
When using multiple imputation, you may wonder how many imputations you need. A simple answer is that more imputations are better....
Oct 30, 2019
R Should Be Your Second Language (If It’s Not Already Your First)
When R first came out, around the year 2000, I was really excited. Here was a powerful, programmable statistical package that...
Apr 19, 2019