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Fixed effects regression methods for longitudinal data using SAS

Author: Allison, Paul D. Publisher: SAS Institute, 2005Language: EnglishDescription: 148 p. : Graphs ; 28 cm.ISBN: 9781590475683Type of document: BookBibliography/Index: Includes bibliographical references and index
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Item type Current location Collection Call number Status Date due Barcode Item holds
Book Asia Campus
Main Collection
Print QA278.2 .A55 2005
(Browse shelf)
900096714
Available 900096714
Book Europe Campus
Main Collection
Print QA278.2 .A55 2005
(Browse shelf)
001391663
Available 001391663
Total holds: 0

Includes bibliographical references and index

Digitized

Fixed Effects Regression Methods
for Longitudinal Data Using SAS®
Contents
Acknowledgments...................................................................................... v
Chapter 1 Introduction to Fixed Effects Methods...................................1
1.1 The Promise of Fixed Effects for Nonexperimental Research................. 1
1.2 The Paired-Comparison t-Test as a Fixed Effects Method...................... 2
1.3 Costs and Benefits of Fixed Effects Methods.......................................... 3
1.4 Why Are These Methods Called "Fixed Effects"?.................................... 5
1.5 Fixed Effects Methods in SAS/STAT........................................................ 6
1.6 What You Need to Know.......................................................................... 6
1.7 Computing................................................................................................. 7
Chapter 2 Fixed Effects Methods for Linear Regression.......................9
2.1 Introduction............................................................................................... 9
2.2 Estimation with Two Observations Per Person...................................... 10
2.3 Extending the Model............................................................................... 15
2.4 Estimation with PROC GLM for More Than Two Observations
Per Person......................................................................................... 19
2.5 Fixed Effects versus Random Effects..................................................... 25
2.6 A Hybrid Method..................................................................................... 32
2.7 An Example with Unbalanced Data........................................................ 38
2.8 Summary................................................................................................. 46
Chapter 3 Fixed Effects Methods for Categorical
Response Variables.............................................................47
3.1 Introduction............................................................................................. 47
3.2 Logistic Models for Dichotomous Data with Two Observations
Per Person......................................................................................... 49
3.3 Estimation of Logistic Models for Two or More Observations
Per Person......................................................................................... 57
3.4 Fixed Effects versus Random Effects..................................................... 62
3.5 Subject-Specific versus Population-Averaged Coefficients.................... 64
3.6 A Hybrid Model....................................................................................... 66
3.7 Fixed Effects Methods for Multinomial Responses................................ 70
3.8 Summary................................................................................................. 77
Chapter 4 Fixed Effects Regression Methods for Count Data...........79
4.1 Introduction............................................................................................. 79
4.2 Poisson Models for Count Data with Two Observations Per
Individual............................................................................................... 80
4.3 Poisson Models for Data with More Than Two Observations
Per Individual........................................................................................ 86
4.4 Fixed Effects Negative Binomial Models for Count Data....................... 93
4.5 Comparison with Random Effects Models and GEE
Estimation............................................................................................. 97
4.6 A Hybrid Approach................................................................................ 101
4.7 Summary............................................................................................... 104
Chapter 5 Fixed Effects Methods for Event History Analysis......... 107
5.1 Introduction........................................................................................... 107
5.2 Cox Regression.................................................................................... 108
5.3 Cox Regression with Fixed Effects....................................................... 112
5.4 Some Caveats...................................................................................... 116
5.5 Cox Regression Using the Hybrid Method........................................... 116
5.6 Fixed Effects Event History Methods for
Nonrepeated Events........................................................................... 117
5.7 Summary............................................................................................... 123
Chapter 6 Linear Fixed Effects Models with PROC CALIS...............125
6.1 Introduction........................................................................................... 125
6.2 Random Effects as a Latent Variable Model........................................ 126
6.3 Fixed Effects as a Latent Variable Model............................................. 130
6.4 A Compromise between Fixed Effects and Random
Effects............................................................................................. 132
6.5 Reciprocal Effects with Lagged Predictors........................................... 134
6.6 Summary and Conclusion..................................................................... 137
References..............................................................................................139
Index........................................................................................................143

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