This volume covers the commonly ignored topic of heteroskedasticity (unequal error variances) in regression analyses and provides a practical guide for how to proceed in terms of testing and correction. Emphasizing how to apply diagnostic tests and corrections for heteroskedasticity in actual data analyses, the book offers three approaches for dealing with heteroskedasticity: variance-stabilizing transformations of the dependent variable; calculating robust standard errors, or heteroskedasticity-consistent standard errors; generalized least squares estimation coefficients and standard errors. The detection and correction of heteroskedasticity is illustrated with three examples that vary in terms of sample size and the types of units analyzed (individuals, households, U.S. states). INDICE: Series Editor's IntroductionAbout the AuthorsAcknowledgements1. What Is Heteroskedasticity and Why Should We Care?2. Detecting and Diagnosing Heteroskedasticity3. Variance-Stabilizing Transformations To Correct For Heteroskedasticity4. Heteroskedasticity Consistent (Robust) Standard Errors5. (Estimated) Generalized Least Squares Regression Model For Heteroskedasticity6. Choosing Among Correction OptionsReferencesAppendix: Miscellaneous Derivations and Tables
- ISBN: 978-1-4522-3495-3
- Editorial: SAGE Publications, Inc
- Encuadernacion: Rústica
- Páginas: 112
- Fecha Publicación: 15/08/2013
- Nº Volúmenes: 1
- Idioma: