Results 21 to 30 of about 34,114,673 (279)
The experiment was conducted to determine the effects of fertilizer types on plant characteristics, forage yield, seed yield and chemical composition of Rhodes grass at Bahir Dar, Ethiopia.
Anteneh Getie +2 more
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Randomized controlled trials (RCTs) are the most valid methodological tool for establishing causal relationships. Nevertheless, their validity is constrained by various methodological details concerning their design, conduction and implementation ...
Theodoros S. Constantinidis
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基于经验模型分析2018年2月台湾花莲地震序列特征及其前震的成因机制
利用地震学的三个经典经验模型(古登堡-里克特定律、修正的大森定律和巴特定律)和描述前震活动的Dieterich前震模型对2018年2月中国台湾花莲地震序列的特征进行了分析。将该地震序列分为ML5.5前震序列、ML5.5余震序列和ML6.0余震序列等3段子序列进行研究,结果显示:利用古登堡-里克特定律得到的ML5.5余震序列和ML6.0余震序列的b值近似为1,ML5.5前震序列的b值近似为0.5;利用修正的大森定律得到的ML5.5余震序列和ML6.0余震序列的p值近似为0.9;利用修正的巴特定律得出ML5.
Yuancheng Shang, Baoping Shi
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Research practices and statistical reporting quality in 250 economic psychology master's theses: a meta-research investigation [PDF]
The replicability of research findings has recently been disputed across multiple scientific disciplines. In constructive reaction, the research culture in psychology is facing fundamental changes, but investigations of research practices that led to ...
Jerome Olsen +3 more
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Not p-Values, Said a Little Bit Differently
As a contribution toward the ongoing discussion about the use and mis-use of p-values, numerical examples are presented demonstrating that a p-value can, as a practical matter, give you a really different answer than the one that you want.
Richard Startz
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Manipulating the Alpha Level Cannot Cure Significance Testing
We argue that making accept/reject decisions on scientific hypotheses, including a recent call for changing the canonical alpha level from p = 0.05 to p = 0.005, is deleterious for the finding of new discoveries and the progress of science.
David Trafimow +67 more
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Central tendency and variability in biological systems: Part 2 [PDF]
This is the second article of a series on fundamental concepts in biostatistics and research. In this article, the author reviews the manner in which researchers characterize data.
Lucien J. Cardinal
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Fragilità, credibilità, controfattuale
Nell’ultimo decennio il p-value è stato sottoposto a notevoli critiche soprattutto per l’uso che se ne fa per raggiungere una conclusione dicotomica circa la significatività del risultato sperimentale (significativo o non significativo). Pertanto, da una
Enrico Ripamonti +2 more
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Diffusion-Weighted MR Imaging in Evaluation of Malignant Lymphoma and Squamous Cell Carcinoma in the Head and Neck Regions [PDF]
Objective: The aim of this study was to evaluate malignant lymphoma and SCC in head and neck region with diffusion-weighted MRI. Patients and methods: Twenty two patients with histologically proven, untreated head and neck malignant lymphoma and SCC ...
Dina Anis +3 more
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مروری بر مفاهیم معنیداری آماری و بالینی با رویکرد آزمون فرضیه (p-value) [PDF]
مقاله مروری کاربرد و تفسیر معنیداری آماری برای اثبات اثربخشی یک مداخله و یا وجود رابطه بین دو متغیر، یک اصل اساسی و ضروری در مطالعات است. بطور سنتی تجزیه و تحلیل دادههای یک مطالعه با استفاده از آزمون فرضیه و گزارش p-value انجام میشود.
مهدی سپیدارکیش +1 more
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