Statistical power analysis with microsoft excel: normal tests for one or two means as a prelude to using non-central distributions to calculate power
| العنوان: | Statistical power analysis with microsoft excel: normal tests for one or two means as a prelude to using non-central distributions to calculate power |
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| المؤلفون: | Álvaro Rosa, Teresa Calapez, Antônio Lúcio Teixeira |
| المصدر: | Scopus-Elsevier CIÊNCIAVITAE |
| بيانات النشر: | American Statistical Association(2009)/Taylor & Francis(2017), 2009. |
| سنة النشر: | 2009 |
| مصطلحات موضوعية: | Statistics and Probability, Ciências Sociais::Ciências da Educação [Domínio/Área Científica], Computer science, Non-central distributions, Effect size, Ciências Sociais::Outras Ciências Sociais [Domínio/Área Científica], 01 natural sciences, Statistical power, Education, Normal distribution, 010104 statistics & probability, Ciências Naturais::Matemáticas [Domínio/Área Científica], Computer software, Statistics, Statistical analysis, 0101 mathematics, Excel, 05 social sciences, Microsoft excel, 050301 education, Power (physics), ComputingMethodologies_PATTERNRECOGNITION, Non-centrality parameter, Power, Statistics, Probability and Uncertainty, 0503 education |
| الوصف: | This article presents statistical power analysis (SPA) based on the normal distribution using Excel, adopting textbook and SPA approaches. The objective is to present the latter in a comparative way within a framework that is familiar to textbook level readers, as a first step to understand SPA with other distributions. The analysis focuses on the case of the equality of the means of two populations with equal variances for independent samples with the same size. This is the situation adopted as case 0 by Cohen (1988), a pioneer in the subject, to develop his set of tables and so, the present article can be seen as an introduction to Cohen's methodology applied to tests based on samples from normal populations. We also discuss how to extend the calculation to cases with other characteristics (cases 1 to 4), similarly to what Cohen proposes, as well as a brief discussion about the advantages and shortcomings of Excel. We teach mainly in the area of business and economics, which determines the scope of our analysis. info:eu-repo/semantics/publishedVersion |
| وصف الملف: | application/pdf |
| اللغة: | English |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b999af0e7a1eb4c31e37b55de7f06f53 https://hdl.handle.net/10071/25444 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....b999af0e7a1eb4c31e37b55de7f06f53 |
| قاعدة البيانات: | OpenAIRE |
| الوصف غير متاح. |