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| Durbin-Watson-teszt az autokorreláció kimutatására× | Regresszió Ordináris Legkisebb Négyzetes (OLS) módszerrel× | |
|---|---|---|
| Tudományterület | Ökonometria | Ökonometria |
| Módszercsalád | Regression model | Regression model |
| Keletkezés éve≠ | 1950 | 2019 |
| Megalkotó≠ | James Durbin & Geoffrey Watson | Wooldridge (textbook treatment); classical least squares |
| Típus≠ | Test for first-order residual autocorrelation | Linear regression |
| Alapmű≠ | Durbin, J., & Watson, G. S. (1950). Testing for serial correlation in least squares regression: I. Biometrika, 37(3/4), 409–428. DOI ↗ | Wooldridge, J. M. (2019). Introductory Econometrics: A Modern Approach (7th ed.). Cengage Learning. ISBN: 978-1337558860 |
| Alternatív nevek≠ | DW test, Durbin-Watson statistic, Durbin-Watson otokorelasyon testi | ordinary least squares, classical linear regression, linear regression, en küçük kareler regresyonu |
| Kapcsolódó≠ | 4 | 5 |
| Összefoglaló≠ | The Durbin-Watson test, developed by James Durbin and Geoffrey Watson in 1950–1951, detects first-order serial correlation in the residuals of a linear regression. Its statistic ranges from 0 to 4, with a value near 2 indicating no autocorrelation, values toward 0 indicating positive autocorrelation, and values toward 4 indicating negative autocorrelation. It remains one of the most reported regression diagnostics despite well-known limitations. | Ordinary Least Squares is the classical linear regression method that explains a continuous outcome as a linear combination of predictors. It estimates the coefficients by minimising the sum of squared residuals, and under the Gauss-Markov assumptions these estimates are the best linear unbiased estimator (BLUE). |
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