Authors: | J. Scott Long and Jeremy Freese |
Publisher: | Stata Press |
Copyright: | 2014 |
ISBN-13: | 978-1-59718-111-2 |
Pages: | 589; paperback |
Price: | $64.00 |
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Table of contents (pdf)6 Models for binary outcomes: Interpretation 6.1 Interpretation using regression coefficients 6.1.1 Interpretation using odds ratios 6.1.2 (Advanced) Interpretation using y* 6.2 Marginal effects: Changes in probabilities 6.2.1 Linked variables 6.2.2 Summary measures of change MEMs and MERs AMEs Standard errors of marginal effects 6.2.3 Should you use the AME, the MEM, or the MER? 6.2.4 Examples of marginal effects AMEs for continuous variables AMEs for factor variables Summary table of AMEs Marginal effects for subgroups MEMs and MERs Marginal effects with powers and interactions 6.2.5 The distribution of marginal effects 6.2.6 (Advanced) Algorithm for computing the distribution of effects 6.3 Ideal types 6.3.1 Using local means with ideal types 6.3.2 Comparing ideal types with statistical tests 6.3.3 (Advanced) Using macros to test differences between ideal types 6.3.4 Marginal effects for ideal types 6.4 Tables of predicted probabilities 6.5 Second differences comparing marginal effects 6.6. Graphing predicted probabilities 6.6.1 Using marginsplot 6.6.2 Using mgen with the graph command 6.6.3 Graphing multiple predictions 6.6.4 Overlapping confidence intervals 6.6.5 Adding power terms and plotting predictions 6.6.6 (Advanced) Graphs with local means 6.7 Conclusion 7 Models for ordinal outcomes 7.1 The statistical model 7.1.1 A latent-variable model 7.1.2 A nonlinear probability model 7.2 Estimation using ologit and oprobit 7.2.1 Example of ordinal logit mdel 7.2.2 Predicting perfectly 7.3 Hypothesis testing 7.3.1 Testing individual coefficients 7.3.2 Testing multiple coefficients 7.4 Measures of fit using fitstat 7.5 (Advanced) Converting to a different parameterization 7.6 The parallel regression assumption 7.6.1 Testing the parallel regression assumption using oparallel 7.6.2 Testing the parallel regression assumption using brant 7.6.3 Caveat regarding the parallel regression assumption 7.7 Overview of interpretation 7.8 Interpreting transformed coefficients 7.8.1 Marginal change in y* 7.8.2 Odds ratios 7.9 Interpretations based on predicted probabilities 7.10 Predicted probabilities with predict 7.11 Marginal effects 7.11.1 Plotting marginal effects 7.11.2 Marginal effects for a quick overview 7.12 Predicted probabilities for ideal types 7.12.1 (Advanced) Testing differences between ideal types 7.13 Tables of predicted probabilities 7.14 Plotting predicted probabilities 7.15 Probability plots and marginal effects 7.16 Less common models for ordinal outcomes 7.16.1 The stereotype logistical model 7.16.2 The generalized ordered logit model 7.16.3 (Advanced) Predictions without using factor-variable notation 7.16.4 The sequential logit model 7.17 Conclusion 8 Models for nominal outcomes 8.1 The multinomial logit model 8.1.1 Formal statement of the model 8.2 Estimation using the mlogit command Weights and complex samples Options 8.2.1 Examples of MNLM 8.2.2 Selecting different base outcomes 8.2.3 Predicting perfectly 8.3 Hypothesis testing 8.3.1 mlogtest for tests of the MNLM 8.3.2 Testing the effects of the independent variables 8.3.3 Tests for combining alternatives 8.4 Independence of irrelevant alternatives 8.4.1 Hausman-McFadden test of IIA 8.4.2 Small-Hsiao test of IIA 8.5 Measures of fit 8.6 Overview of interpretation 8.7 Predicted probabilities with predict 8.8 Marginal effects 8.8.1 (Advanced) The distribution of marginal effects 8.9 Tables of predicted probabilities 8.9.1 (Advanced) Testing second differences 8.9.2 (Advanced) Predictions using local means and subsamples 8.10 Graphing predicted probabilities 8.11 Odds ratios 8.11.1 Listing odds ratios with listcoef 8.11.2 Plotting odds ratios 8.12 (Advanced) Additional models for nominal outcomes 8.12.1 Stereotype logistic regression 8.12.2 Conditional logit model 8.12.3 Multinomial probit model with IIA 8.12.4 Alternative-specific multinomial probit 8.12.5 Rank-ordered logit model 8.13 Conclusion 9 Models for count outcomes 9.1 The Poisson distribution 9.1.1 Fitting the Poisson distribution with the poisson command 9.1.2 Compaing observed and predicted counts with mgen 9.2 The Poisson regression model 9.2.1 Estimation using poisson Example of the PRM 9.2.2 Factor and percentage changes in E(y | x) Example of factor and percentage change 9.2.3 Marginal effects on E(y | x) Examples of marginal effects 9.2.4 Interpretation using predicted probabilities Predicted probabilities using mtable and mchange Treating a count independent variable as a factor variable Predicted probabilities using mgen 9.2.5 Comparing observed and predicted counts to evaluate model specification 9.2.6 (Advanced) Exposure time 9.3 The negative binomial regression model 9.3.1 Estimation using nbreg NB1 and NB2 variance functions 9.3.2 Example of NBRM 9.3.3 Testing for overdispersion 9.3.4 Comparing the PRM and NBRM using estimates table 9.3.5 Robust standard errors 9.3.6 Interpretation using E(y | x) 9.3.7 Interpretation using predicted probabilities 9.4 Models for truncated counts 9.4.1 Estimation using tpoisson and tnbreg Example of zero-truncated model 9.4.2 Interpretation using E(y | x) 9.4.3 Predictions in the estimation sample 9.4.4 Interpretation using predicted rates and probabilities 9.5 (Advanced) The hurdle regression model 9.5.1 Fitting the hurdle model 9.5.2 Predictions in the sample 9.5.3 Predictions at user-specified values 9.5.4 Warning regarding sample specification 9.6 Zero-inflated count models 9.6.1 Estimation using zinb and zip 9.6.2 Example of zero-inflated models 9.6.3 Interpretation of coefficients 9.6.4 Interpretation of predicted probabilities Predicted probabilities with mtable Plotting predicted probabilities with mgen 9.7 Comparisons among count models 9.7.1 Comparing mean probabilities 9.7.2 Tests to compare count models 9.7.3 Using countfit to compare count models 9.8 Conclusion References Author index Subject index |