Literaturnachweis - Detailanzeige
Autor/in | Rogers, Bruce G. |
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Titel | Toward "Constructing" the Concept of Statistical Power: An Optical Analogy. |
Quelle | (2000), (6 Seiten)
PDF als Volltext |
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 |