Don’t Put Lagged Dependent Variables in Mixed Models
When estimating regression models for longitudinal panel data, many researchers include a lagged value of the dependent variable as a predictor....
Jun 02, 2015
Maximum Likelihood is Better than Multiple Imputation: Part II
In my July 2012 post, I argued that maximum likelihood (ML) has several advantages over multiple imputation (MI) for handling missing data:...
May 05, 2015
What’s So Special About Logit?
For the analysis of binary data, logistic regression dominates all other methods in both the social and biomedical sciences. It wasn’t...
Apr 01, 2015
Imputation by Predictive Mean Matching: Promise & Peril
Predictive mean matching (PMM) is an attractive way to do multiple imputation for missing data, especially for imputing quantitative variables that...
Mar 05, 2015
Getting the Lags Right
In my November and December posts, I extolled the virtues of SEM for estimating dynamic panel models. By combining fixed effects...
Feb 10, 2015
More on Causal Inference With Panel Data
This is a follow-up to last month’s post, in which I considered the use of panel data to answer questions about...
Nov 25, 2014
Using Panel Data to Infer Causal Direction: ML vs. Arellano-Bond
Does x cause y or does y cause x? Virtually everyone agrees that cross-sectional data are of no use in answering...
Nov 03, 2014
Sensitivity Analysis for Not Missing at Random
When I teach my seminar on Missing Data, the most common question I get is “What can I do if my...
Sep 25, 2014
Problems with the Hybrid Method
For several years now, I’ve been promoting something I called the “hybrid method” as a way of analyzing longitudinal and other...
Sep 02, 2014
UPDATE, 11 February 2021. SAS University Edition will soon be phased out. It will end completely on Aug. 2, 2021. You...
Jul 24, 2014
Prediction vs. Causation in Regression Analysis
In the first chapter of my 1999 book Multiple Regression, I wrote “There are two main uses of multiple regression: prediction...
Jul 08, 2014
Listwise Deletion: It’s NOT Evil
At the 1998 Annual Meeting of the American Political Science Association, Gary King and three co-authors presented a paper titled “Listwise...
Jun 13, 2014