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Nota técnica 2: An equal Variance Test

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Author Info
George G.Djolov ()
Abstract

This article introduces (and hopes to encourage thereby) the econometrics practitioner to (use) a homoscedasticity test referred to in the field of statistics as the modified Levene test. Econometrics orthodoxy (from University to practice level) has focused mainly on three heteroscedasticity tests, namely the Goldfeld-Quandt (GQ), Breusch-Pagan-Godfrey (BPG), and the White (W) test. The difference between the aforementioned tests and the test elaborated on in this article is that the former are for regression whereas the latter is for ANOVA –analysis of variance– situations.

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File URL: http://econ.uchile.cl/public/Archivos/pub/cba09cd6-d96a-44c5-92d4-b9081a146127.pdf
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Publisher Info
Article provided by University of Chile, Department of Economics in its journal Estudios de Economia.

Volume (Year): 29 (2002)
Issue (Month): 2 Year 2002 (December)
Pages: 327-339
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Handle: RePEc:udc:esteco:v:29:y:2002:i:2:p:327-339

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Web page: http://www.econ.uchile.cl/
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Related research
Keywords: Levene Test; modified Levene Test.;

Find related papers by JEL classification:
C10 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods: General - - - General
C12 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods: General - - - Hypothesis Testing

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  1. Godfrey, Leslie G., 1978. "Testing for multiplicative heteroskedasticity," Journal of Econometrics, Elsevier, vol. 8(2), pages 227-236, October. [Downloadable!] (restricted)
  2. Breusch, T S & Pagan, A R, 1979. "A Simple Test for Heteroscedasticity and Random Coefficient Variation," Econometrica, Econometric Society, vol. 47(5), pages 1287-94, September. [Downloadable!] (restricted)
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This page was last updated on 2009-12-13.


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