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Diagnostics for Heteroscedasticity in Regression

R. Dennis Cook and Sanford Weisberg
Biometrika
Vol. 70, No. 1 (Apr., 1983), pp. 1-10
Published by: Oxford University Press on behalf of Biometrika Trust
DOI: 10.2307/2335938
Stable URL: http://www.jstor.org/stable/2335938
Page Count: 10
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Diagnostics for Heteroscedasticity in Regression
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Abstract

For the usual regression model without replication, we provide a diagnostic test for heteroscedasticity based on the score statistic. A graphical procedure to complement the score test is also presented.

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