Journals / Tarım Bilimleri Dergisi / 2000 / Cilt: 06 - Sayı: 03

The Comparison of the Completely Randomized Designs in Which the Experimental Units with Balanced and Random Means Allotted to Groups

Deney Ünitelerinin Gruplara Ortalamaları Dengelenmiş ve Rasgele Dağıtıldığı Tesadüf Parselleri Deneme Düzenlerinin Karşılaştırması

Pages
141–143
Publication Date
2000-08-01
DOI
—
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The results show that, the balanced designs will seriously overestimate the variances of treatment means.

📌 3 Key Takeaways

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Objective & Hypothesis:This study, dealt with how affected first type error, power of test, the variances of the between and within groups and sample sizes with respect to two groups having differences between the means 8=0.0, 8=1.0, 8=1.5 and 6=2.0 standard deviation respectively.
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Key Findings & Data:The empirical results were found out at the end of the 100 000 simulation experiments for every sample size and 8 differences combinations.
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Conclusion & Impact:The results show that, the balanced designs will seriously overestimate the variances of treatment means.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Tesadüf parselleri · dengeli denemeler · dengesiz denemeler

Abstract

This study, dealt with how affected first type error, power of test, the variances of the between and within groups and sample sizes with respect to two groups having differences between the means 8=0.0, 8=1.0, 8=1.5 and 6=2.0 standard deviation respectively. The empirical results were found out at the end of the 100 000 simulation experiments for every sample size and 8 differences combinations. The results show that, the balanced designs will seriously overestimate the variances of treatment means. On the other hand, it needs fewer experiment unit than unbalanced randomized designs.

Özet

Bu çal ışmada, deney ünitelerinin gruplara ortalamalan dengelenmi ş olarak ve rasgele da ğı t ı lmas ı ile I. Tip hatan ı n, testin gücünün, gruplar aras ı ve grup içi varyanslar ı n ve örnek geniş liklerinin karşı laşt ı nlan grup say ı sı iki ve gruplar ı n ortalamalar aras ı ndaki farklar da 8=0.0, 8=1.0, 8=1.5 ve 8=2.0 standart sapma oldu ğunda nas ı l etkilendiğ i ele al ı nm ışt ı r. Her örnek genişliğ i ve 8 fark ı için, dengelenmiş ve rasgele tahsis edilmiş 100 000'er simülasyon denemesi ile sonuçlar, ampirik olarak elde edilmi ştir. Dengelenmiş denemelerde, muamele ortalamalar ı aras ı ndaki varyansları n beklenenden ciddi say ı labilecek ölçüde farkl ı tahmin edildikleri ancak, gerekli deney ünitesi say ı s ı bak ı m ı ndan dengelenmemiş denemelerden daha az deney ünitesine gerek duydu ğ u sonucuna var ı lmışt ı r.

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Cite This Article

BASPINAR, E., GURBUZ, F. (2000). The Comparison of the Completely Randomized Designs in Which the Experimental Units with Balanced and Random Means Allotted to Groups. Tarım Bilimleri Dergisi, Cilt: 06 - Sayı: 03, 141–143. https://ajindex.com/articles/204131

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References (3)

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