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| Analysis of Variance | 1 |
| Heuristics | 1 |
| Power (Statistics) | 1 |
| Research Design | 1 |
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| Journal of Educational and… | 1 |
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| Keyes, Tim K. | 1 |
| Levy, Martin S. | 1 |
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Peer reviewedKeyes, Tim K.; Levy, Martin S. – Journal of Educational and Behavioral Statistics, 1997
H. Levene (1960) proposed a heuristic test for heteroscedasticity in the case of a balanced two-way layout, based on analysis of variance of absolute residuals. Conditions under which design imbalance affects the test's characteristics are identified, and a simple correction involving leverage is proposed. (SLD)
Descriptors: Analysis of Variance, Heuristics, Power (Statistics), Research Design
