Genel tam faktöriyel deney tasarımlarda örneklem büyüklüğü ve güç tahmini

Öz

Bu çalışmanın amacı, farklı boyutlardaki çok sayıda genel tam faktöriyel tasarımlar için örneklem büyüklüğü ve güç hesaplamalarıni yaparak, deney tasarımını kurmadan önce gereğinden fazla veri toplamanın neden olduğu kaynak israfını önlemektir. Bu hesaplamaların faktörlerin düzey sayısı, analizde kullanılan modeldeki ana etkilerin ortalamaları ve standart sapma gibi birçok faktöre dayalı olduğu görülmüştür.

Anahtar Kelimeler

• tam faktöriyel tasarım,istatistiksel güç,örneklem büyüklüğü,testin gücü

Estimation of sample size and power for general full factorial designs

Öz

The aim of this study is to calculate sample size and power for several varieties of general full factorial designs, in order to help researchers to avoid the waste of resources by collecting surplus data before designing experiments. It was found out that the calculations were significantly affected by many factors in full factorial experimental designs, such as number of levels for each factor, number of replications, maximum difference between main effect means and standard deviation.

Anahtar Kelimeler

• full factorial design,statistical power,sample size,power of test

Kaynakça

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5. G.E. Box, W.G. Hunter, J.S. Hunter, 2005, Statistics for Experimenters: Design, Innovation and Discovery, 2nd ed., Wiley.
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9. Minitab 17 Statistical Software, 2010, State College, PA: Minitab, Inc. (www.minitab.com).
10. D.R. Cox, 1958, Planning Experiments. New York: John Wiley & Sons, Inc.