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Tables of Contents for What Works
Chapter/Section Title
Page #
Page Count
Preface
xi
Zen and the Art of Policy Analysis: Substantively Weighted Analytical Techniques
1
16
Introduction
1
1
Sciences of the Artificial
2
1
A Graphical Overview
3
2
Heterogeneity Is Good
5
2
The Zen of Weighting
7
1
Why Not Just Run Separate Regressions?
8
2
Don't Throw Away Your Other Tools
10
1
When Not to Use SWAT
10
3
No Residual Variation
11
1
When There Is a Clear Break Between Two Sets of Programs
11
1
An Incorrect Functional Form
12
1
Plan of the Book
13
1
Discussion
14
1
References
14
3
An Introduction to Substantively Weighted Least Squares
17
24
Introduction
17
1
Child Support Enforcement
18
1
The Original Study
19
2
Regression Diagnostics
21
3
Robust and Resistant Regression
24
3
SWLS
27
7
Some Caveats
34
1
SWAT Versus Best Practices
34
1
SWAT Versus L-Regression: A Methodological Interlude
35
1
But So What?
36
1
Addendum: Data Description
37
1
References
38
3
The Theory and Application of Generalized Substantively Reweighted Least Squares
41
18
Introduction
41
2
Distribution of the Jacknifed Residuals
43
2
Relationship to the F Distribution
45
2
Five Assumptions and a Warning
47
1
Using the GSRLS Procedure
48
2
A Simple Example
50
5
SWAT Versus the Chow Test
55
1
Discussion
56
1
Addendum: Splus/R Code for SWAT
57
1
References
58
1
Substantively Weighted Analytical Techniques for Successes and Failures: SWLS and GSRLS
59
24
Introduction
59
2
The Dataset
61
3
The Outcome Variable
61
1
The Explanatory Variables
61
3
SWLS Findings
64
7
GSRLS Results
71
1
Differences Between SWLS and GSRLS
71
7
Discussion
78
1
References
78
5
Separating Excellent Agencies From the Good Ones: Pushing the Extremes of the Data Distribution
83
16
Introduction
83
2
An Education Production Function
85
1
Linear Model Findings
85
1
The Pretty Good Agencies
86
3
The Super Agencies
89
1
Lucky or Good?
90
2
What the Super Agencies Do Differently
92
4
Extensions
96
1
Discussion
97
1
References
97
2
Weighting With an Exogenous Variable or With Two Exogenous Variables: Equity Versus Excellence in Organizations
99
20
Introduction
99
1
The Theoretical Setting for the Study
100
1
Educational Performance
101
3
The Outcome Variable
102
1
Explanatory Variables
103
1
Substantively Weighted Least Squares
104
1
Findings
104
8
Weighting in Two Dimensions
112
1
Two-Dimensional Weights: An Illustration
113
2
Discussion
115
1
References
116
3
SWAT in Pooled Analysis
119
28
Introduction
119
1
Zen and the Art of Pooling
120
3
The Full---and Then Some---Prison Blues
123
2
Looking at the Data
125
2
Applying SWAT to the Data
127
11
A Note of Caution
130
1
The Winners: The Low Crime States
131
3
The Losers: High Crime States
134
4
Path Dependence
138
1
A Second Example: Educational Performance
138
5
Discussion
143
1
Addendum: Data Description
143
2
References
145
2
The Zen and the Practice: Some Final Remarks
147
8
Overview
147
1
The Secret Life of Residuals
148
1
Weighting the Artificial
149
1
Hypotheses
150
1
If I Had a Hammer
151
1
The Final Word
152
1
References
153
2
Index
155