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Fixed Effects Regression Methods for Longitudinal Data Using SAS

About the Book

book cover Fixed Effects Regression Methods for Longitudinal Data Using SAS
By: Paul D. Allison
ISBN: 978-1-59047-568-3
Pages: 168


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Fixed Effects Regression Methods for Longitudinal Data Using SAS is an invaluable resource for all researchers interested in adding fixed effects regression methods to their tool kit of statistical techniques. First introduced by economists, fixed effects methods are gaining widespread use throughout the social sciences. Designed to eliminate major biases from regression models with multiple observations (usually longitudinal) for each subject (usually a person), fixed effects methods essentially offer control for all stable characteristics of the subjects, even characteristics that are difficult or impossible to measure. This straightforward and thorough text shows you how to estimate fixed effects models with several SAS procedures that are appropriate for different kinds of outcome variables. The theoretical background of each model is explained, and the models are then illustrated with detailed examples using real data. The book contains thorough discussions of the following uses of SAS procedures: PROC GLM for estimating fixed effects linear models for quantitative outcomes, PROC LOGISTIC for estimating fixed effects logistic regression models, PROC PHREG for estimating fixed effects Cox regression models for repeated event data, PROC GENMOD for estimating fixed effects Poisson regression models for count data, PROC CALIS for estimating fixed effects structural equation models. To gain the most benefit from this book, readers should be familiar with multiple linear regression, have practical experience using multiple regression on real data, and be comfortable interpreting the output from a regression analysis. An understanding of logistic regression and Poisson regression is a plus. Some experience with SAS is helpful, but not required.
About the Author

author photo Paul D. Allison, is a Professor and Chair of Sociology at the University of Pennsylvania where he teaches graduate courses and performs research in addition to administering the department of sociology. The author of Logistic Regression Using the SAS System: Theory and Application and Survival Analysis Using SAS: A Practical Guide, Paul has also written numerous statistical papers and published extensively on the subject of scientists' careers.