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ix | |
Preface |
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xi | |
Introduction: Getting Started |
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xv | |
About Companion Datasets |
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xvi | |
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Chapter 1 Introduction to Stata |
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1 | (16) |
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Information About a Dataset |
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2 | (1) |
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Information About Variables |
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3 | (1) |
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General Syntax of Stata Commands |
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4 | (1) |
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5 | (3) |
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Printing Results and Copying Output |
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8 | (2) |
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10 | (1) |
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10 | (3) |
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13 | (1) |
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14 | (3) |
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Chapter 2 Descriptive Statistics |
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17 | (28) |
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Interpreting Measures of Central Tendency and Variation |
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18 | (1) |
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Describing Nominal Variables |
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18 | (2) |
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A CLOSER LOOK: Weighting the GSS and NES Datasets |
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20 | (1) |
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Describing Ordinal Variables |
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20 | (1) |
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Describing Interval Variables |
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21 | (5) |
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Bar Charts for Nominal and Ordinal Variables |
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26 | (2) |
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A CLOSER LOOK: Stata's Graphics Editor |
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28 | (2) |
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Histograms for Interval Variables |
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30 | (2) |
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Obtaining Case-Level Information With sort and list |
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32 | (2) |
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34 | (11) |
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Chapter 3 Transforming Variables |
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45 | (20) |
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Creating Indicator Variables |
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46 | (4) |
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Working With Variable Labels |
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50 | (2) |
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Collapsing Variables Into Simplified Categories |
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52 | (4) |
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Centering or Standardizing a Numeric Variable |
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56 | (1) |
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Creating an Additive Index |
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57 | (3) |
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60 | (5) |
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Chapter 4 Making Comparisons |
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65 | (26) |
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Cross-Tabulation Analysis |
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65 | (2) |
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Visualizing Comparisons With Nominal or Ordinal Dependent Variables |
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67 | (3) |
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A CLOSER LOOK: The replace Command |
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70 | (1) |
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71 | (2) |
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A CLOSER LOOK: The format Command |
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73 | (1) |
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Visualizing Comparisons With Interval-Level Dependent Variables |
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73 | (4) |
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Strip Charts: Graphs for Small-N Datasets |
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77 | (2) |
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79 | (12) |
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Chapter 5 Making Controlled Comparisons |
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91 | (24) |
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Cross-Tabulation Analysis With a Control Variable |
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92 | (3) |
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A CLOSER LOOK: The "If" Qualifier |
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95 | (2) |
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Visualizing Controlled Comparisons With Categorical Dependent Variables |
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97 | (1) |
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Mean Comparison Analysis With a Control Variable |
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98 | (3) |
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An Example of Interaction |
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99 | (1) |
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An Example of an Additive Relationship |
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100 | (1) |
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Visualizing Controlled Mean Comparisons |
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101 | (2) |
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103 | (12) |
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Chapter 6 Making Inferences About Sample Means |
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115 | (20) |
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Finding the 95 Percent Confidence Interval of a Sample Mean |
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116 | (2) |
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Testing a Hypothetical Claim About the Population Mean |
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118 | (2) |
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Testing the Difference Between Two Sample Means |
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120 | (2) |
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A CLOSER LOOK: Inferences About Means With Unweighted Data |
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122 | (1) |
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Extending the mean and lincom Commands to Other Situations |
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123 | (3) |
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Making Inferences About Sample Proportions |
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126 | (1) |
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A CLOSER LOOK: Inferences About Proportions With Unweighted Data |
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126 | (5) |
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131 | (4) |
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Chapter 7 Chi-Square and Measures of Association |
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135 | (20) |
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Analyzing Ordinal-Level Relationships |
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136 | (1) |
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A CLOSER LOOK: Analyzing Unweighted Data With The tabulate Command |
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137 | (5) |
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Summary: Reporting and Interpreting Results |
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141 | (1) |
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Analyzing an Ordinal-Level Relationship With a Control Variable |
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142 | (3) |
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Analyzing Nominal-Level Relationships |
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145 | (3) |
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148 | (7) |
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Chapter 8 Correlation and Linear Regression |
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155 | (20) |
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155 | (2) |
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157 | (1) |
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A CLOSER LOOK: Treating Census as a Sample |
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158 | (1) |
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A CLOSER LOOK: R-Squared and Adjusted R-Squared: What's the Difference? |
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159 | (1) |
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Creating a Scatterplot With a Linear Prediction Line |
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160 | (1) |
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161 | (2) |
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A CLOSER LOOK: Bubble Plots |
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163 | (1) |
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Correlation and Regression Analysis With Weighted Data |
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163 | (2) |
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165 | (10) |
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Chapter 9 Dummy Variables and Interaction Effects |
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175 | (16) |
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Regression With Multiple Dummy Variables |
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175 | (3) |
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Interaction Effects in Multiple Regression |
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178 | (3) |
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Graphing Linear Prediction Lines for Interaction Relationships |
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181 | (1) |
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Changing the Reference Category |
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181 | (3) |
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184 | (7) |
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Chapter 10 Logistic Regression |
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191 | (30) |
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Thinking About Odds, Logged Odds, and Probabilities |
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191 | (2) |
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Estimating Logistic Regression Models |
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193 | (4) |
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Logistic Regression With Multiple Independent Variables |
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197 | (3) |
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A CLOSER LOOK: Comparing Logistic Regression Models With the estimates and lrtest Commands |
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200 | (1) |
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Graphing Predicted Probabilities With One Independent Variable |
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201 | (4) |
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Graphing Predicted Probabilities With Multiple Independent Variables |
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205 | (8) |
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The margins Command With the atmeans Option |
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206 | (2) |
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The margins Command With the over Option |
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208 | (2) |
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Combining atmeans and over Options |
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210 | (3) |
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213 | (8) |
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Chapter 11 Doing Your Own Political Analysis |
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221 | (14) |
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221 | (4) |
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Political Knowledge and Interest |
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222 | (1) |
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Self-Interest and Policy Preferences |
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222 | (1) |
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Economic Performance and Election Outcomes |
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223 | (1) |
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Electoral Turnout in Comparative Perspective |
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223 | (1) |
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Interviewer Effects on Public Opinion Surveys |
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223 | (1) |
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224 | (1) |
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224 | (1) |
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Importing Data Into Stata |
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225 | (7) |
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225 | (1) |
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225 | (6) |
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231 | (1) |
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232 | (3) |
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233 | (1) |
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234 | (1) |
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Data, Hypotheses, and Analysis |
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234 | (1) |
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Conclusions and Implications |
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234 | (1) |
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Table A-1 Variables in the GSS Dataset in Alphabetical Order |
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235 | (10) |
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Table A-2 Variables in the NES Dataset in Alphabetical Order |
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245 | (6) |
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Table A-3 Variables in the States Dataset by Topic |
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251 | (8) |
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Table A-4 Variables in the World Dataset by Topic |
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259 | |