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Heteroskedasticity in Regression

Condition: BRAND NEW
ISBN: 9781452234953
Author(s): Robert L. Kaufman
Format: Paperback
Year: 2013
Publisher: SAGE Publications Inc
Pages: 112
Series: Quantitative Applications in the Social Sciences
Series Number: 172

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Description:
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).

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