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Autor/inn/en | Nthangeni, Mbulaheni; Algina, James |
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Titel | Type I Error Rate and Power of Some Alternative Methods to the Independent Samples "t" Test. |
Quelle | In: Educational and Psychological Measurement, 61 (2001) 6, S.937-57Infoseite zur Zeitschrift |
Sprache | englisch |
Dokumenttyp | gedruckt; Zeitschriftenaufsatz |
ISSN | 0013-1644 |
Schlagwörter | Control Groups; Power (Statistics); Research Design; Sampling |
Abstract | Examined Type I error rates and power for four tests for treatment control studies in which a larger treatment mean may be accompanied by a larger treatment variance and examined these aspects of the independent samples "t" test and the Welch test. Evaluated each test and suggested conditions for the use of each approach. (SLD) |
Erfasst von | ERIC (Education Resources Information Center), Washington, DC |