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PL EN


2002 | 156 |

Article title

Homoscedasticity test for the linear trend

Content

Title variants

EN
Testy homoskedastycznośd dla modelu liniowego

Languages of publication

Abstracts

PL
W literaturze statystycznej i ekonometrycznej bardzo wyraźnie podkreśla się znaczenie i metody weryfikacji podstawowych założeń dotyczących modelu ekonometrycznego, chociaż w praktyce niezbyt często postulat ten jest realizowany.
EN
Abstract. In this paper we consider single parameter models of heteroscedastidty: linear, square, exponential, group. A significant predominance of the parametric tests over the peak tests is shown using the variability coefficient as the most natural measure of homosccdasticity and the summary Kendal statistic as a measure of a test power. Another suggestion is that it is worth using the Goldfeld-Quandt parametric test, when the growth in the variance is quite „smooth” (in other case - the classical F-lesl is better). Prevalence of the F-test over the peak test is much smaller.

Year

Volume

156

Physical description

Dates

published
2002

References

Document Type

Publication order reference

Identifiers

URI
http://hdl.handle.net/11089/19261

YADDA identifier

bwmeta1.element.hdl_11089_19261
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