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| Autor/in | Rogers, Bruce G. |
|---|---|
| Titel | Toward "Constructing" the Concept of Statistical Power: An Optical Analogy. |
| Quelle | (2000), (6 Seiten)
PDF als Volltext kostenfreie Datei |
| Beigaben | Tabellen |
| Sprache | englisch |
| Dokumenttyp | gedruckt; online; Monographie |
| Schlagwörter | Tagungsbericht; Analogy; College Students; Concept Formation; Higher Education; Power (Statistics); Teaching Methods |
| Abstract | This paper presents a visual analogy that may be used by instructors to teach the concept of statistical power in statistical courses. Statistical power is mathematically defined as the probability of rejecting a null hypothesis when that null is false, or, equivalently, the probability of detecting a relationship when it exists. The analogy involved a group of hikers in desert heat who are faced with the possibility that a pool of water seen by only one hiker is a mirage. Effect size, sample size, and significance level are discussed in terms of the mirage analogy. Type I errors, error variance, and directionality are also discussed in terms of the optical analogy. (SLD) |
| Erfasst von | ERIC (Education Resources Information Center), Washington, DC |
| Update | 2004/1/01 |
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