Inside this issue
- How do you compare? Examining effects in multilevel models using contrasts
- In the spotlight: Bayesian IRT-4PL model
- Bookmarks: Series 8 now available
- Stata Conference
- 2016 Stata Users Group meetings
- New from Stata Press
- New from the Stata Bookstore
- NetCourses
- Public training
- ICPSR Summer Program
- The Stata Journal Editors' Prize
How do you compare?
Examining effects in multilevel models using contrasts
If your statistical background includes ANOVA modeling and analysis of designed experiments, you are likely already familiar with contrasts. If not, contrasts may be a new concept, or perhaps you use certain types of contrasts but call them by different names. So before we jump to contrasts with multilevel models, let's look at a few types of tests you can perform using Stata's contrast command.
In the spotlight: Bayesian IRT-4PL model
Item response theory (IRT) is often used for modeling the relationship between the latent abilities of a group of subjects and the examination items used for measuring their abilities. Stata 14 introduced a suite of commands for fitting IRT models using maximum likelihood. In this article, we demonstrate how to fit a Bayesian 4PL model using bayesmh.
Bookmarks: Series 8 now available
Collect the latest set of five commemorative bookmarks documenting the accomplishments of Thomas Bayes, Vera Nikolaevna Kublanovskaya, Max Otto Lorenz, Andrey Markov, and John Snow. The set begins shipping March 7.
July 28–29 in Chicago
Looking to increase your Stata IQ, or perhaps just want an excuse to enjoy a few days in the city that is second to none? You can't miss with the 2016 Stata Conference. The Stata Conference provides a unique users-group experience, bringing together top researchers from around the world and Stata developers in an intimate atmosphere where everyone is welcome.
| EUSMEX 2016 | |
|---|---|
| Aguascalientes, Mexico | May 18 |
| 2016 German Stata Users Group meeting | |
| Cologne, Germany | June 10 |
| 2016 Belgian Stata Users Group meeting | |
| Brussels, Belgium | September 6 |
| 2016 London Stata Users Group meeting | |
| London, UK | September 8–9 |
| 2016 Nordic and Baltic Stata Users Group meeting | |
| Oslo, Norway | September 13 |
| 2016 Oceania Stata Users Group meeting | |
| Sydney, Australia | September 29–30 |
| 2016 Italian Stata Users Group meeting | |
| Rome, Italy | November 17–18 |
More dates and locations are forthcoming. Check our site frequently for updates.
An Introduction to Stata Programming, Second Edition
By Christopher F. Baum
Copyright: 2016
$58.00
If you want to understand basic Stata programming or want to write your own routines and commands using advanced Stata tools, Baum's book is a great reference.
New from the Stata Bookstore
Applied Ordinal Logistic Regression Using Stata
By Xing Liu
Copyright: 2016
$58.75
Introduction to Econometrics, Update, Third Edition
By James H. Stock and Mark W. Watson
Copyright: 2015
$198.75
Introductory Econometrics: A Modern Approach, Sixth Edition
By Jeffrey M. Wooldridge
Copyright: 2016
$209.75
Multilevel Modeling in Plain Language
By Karen Robson and David Pevalin
Copyright: 2016
$32.00
NetCourses
| Introduction to Stata | |
|---|---|
|
March 4-April 15, 2016 July 8-August 19, 2016 |
$95.00 |
| Statistical Graphics Using Stata | |
|
March 4-April 15, 2016 July 8-August 19, 2016 |
$150.00 |
| Introduction to Stata Programming | |
|
March 4-April 15, 2016 July 8-August 19, 2016 |
$150.00 |
| Writing Your Own Stata Commands | |
| July 15-September 2, 2016 | $175.00 |
| Univariate Time Series with Stata | |
| July 15-September 2, 2016 | $295.00 |
| Introduction to Panel Data Using Stata | |
| July 15-August 26, 2016 | $295.00 |
| Introduction to Survival Analysis Using Stata | |
| July 15-September 2, 2016 | $295.00 |
Public training
| Using Stata Effectively: Data Management, Analysis, and Graphics Fundamentals | |
|---|---|
|
March 8-9, 2016 April 26-27, 2016 |
$950 |
| Structural Equation Modeling Using Stata | |
| March 10-11, 2016 | $1,295 |
| Handling Missing Data Using Multiple Imputation | |
| April 21-22, 2016 | $1,295 |
ICPSR Summer Program in Quantitative Methods of Social Research
Three of this year's ICPSR courses are taught by StataCorp staff and will be of particular interest to Stata users.
Handling Missing Data Using Multiple Imputation in Stata
Rose Medeiros, Senior Statistician
July 6-8, 2016
Structural Equation Modeling with Stata
Kristin MacDonald, Asst. Director of Statistical Services
July 18-20, 2016
Multilevel and Mixed Models Using Stata
Rose Medeiros, Senior Statistician
July 26-29, 2016
The Stata Journal Editors' Prize
The editors of the Stata Journal, H. Joseph Newton (Texas A&M University) and Nicholas J. Cox (Durham University), are delighted to announce the award of the Editors' Prize 2015 to Richard Williams.
Nominate your favorite Stata Journal authors for the Stata Journal Editors' Prize 2016.
