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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 V&M). In brief, they showed that if...
Paul Allison October 24, 2022

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
24

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
5

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
4

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
7

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
23

Free SAS!

UPDATE, 11 February 2021.  SAS University Edition will soon be phased out.  It will end completely on Aug. 2, 2021. You...
Jul 24, 2014
43

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
67

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
2

Another Goodness-of-Fit Test for Logistic Regression

In my April post, I described a new method for testing the goodness of fit (GOF) of a logistic regression model...
May 07, 2014
10

Alternatives to the Hosmer-Lemeshow Test

In my post of March 2013, I pointed out some of the deficiencies of the Hosmer-Lemeshow test for goodness-of-fit (GOF) of...
Apr 09, 2014
6

Rejected? Keep at it.

Journal editors are people, just like the researchers who submit their work for publication.  People make mistakes.  Journal editors often fail...
Apr 08, 2013
6