Statistical factorial designs for optimum production of thermostable α-amylase by the degradative bacterium Parageobacillus thermoglucosidasius Pharon1 isolated from Sinai, Egypt [PDF]
Journal of Genetic Engineering and Biotechnology, 2021 Background This study aimed to isolate potent thermophilic and amylolytic bacteria from a hot spring of Pharaoh’s bath, Sinai, Egypt, and screen its degradative activity.
Ali M. Saeed +2 more
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FUNDAMENTAL CONCEPTS AND RECENT APPLICATIONS OF FACTORIAL STATISTICAL DESIGNS
Brazilian Journal of Biometrics, 2022 Factorial designs have been increasingly used in scientific investigations and technological development. The designs, through the use of matrices with all the treatment combinations, have been capable to effectively characterize the relationships between the variables of multi-factor experiments, assess the experimental variabilities, and derive ...
Pedro Henrique Mainardi +1 more
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Statistical Analysis of Efficient Unbalanced Factorial Designs for Two-Color Microarray Experiments [PDF]
International Journal of Plant Genomics, 2008 Experimental designs that efficiently embed a fixed effects treatment structure within a random effects design structure typically require a mixed-model approach to data analyses. Although mixed model software tailored for the analysis of two-color microarray data is increasingly available, much of this software is generally not capable of correctly ...
Robert J. Tempelman
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The comparison of nonparametric statistical tests for interaction effects in factorial design [PDF]
Decision Science Letters, 2019 Correct application of the classical factorial F-test depends on normality and homogeneity of variance assumptions. If these assumptions are violated the type I error rate will be inflated and power of the test will be decreased.
Ampai Thongteeraparp
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Different types of cluster membership in parallel-group cluster-randomised trials, where the clusters are institutions: a classification system to aid identification, with six proposed designs [PDF]
TrialsBackground Four main types of cluster-randomised trial (CRT) are well known: parallel-group (PG), factorial, stepped-wedge and crossover designs. This established typology relates to how clusters are exposed to intervention(s) or control(s) during the ...
L. E. Marsden +5 more
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Advanced row-column designs for animal feed experiments
Indian Journal of Animal Sciences, 2023 Inappropriate statistical designs may misinterpret results of animal feed experiments. Thus complete statistical designs can make animal feed research more appropriate and cost effective.
PRAKASH KUMAR +5 more
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Raw Data Visualization for Common Factorial Designs Using SPSS: A Syntax Collection and Tutorial
Frontiers in Psychology, 2022 Transparency in data visualization is an essential ingredient for scientific communication. The traditional approach of visualizing continuous quantitative data solely in the form of summary statistics (i.e., measures of central tendency and dispersion ...
Florian Loffing, Florian Loffing
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Applied Sciences, 2023 The mixture design of cement-based materials can be complex due to the increasing number of constituent raw materials and multiple requirements in terms of engineering performance and economic and environmental efficiency.
Nara Cangussu +3 more
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Generalizations of the Tests by Kruskal-Wallis, Friedman and van der Waerden for Split-plot Designs
Austrian Journal of Statistics, 2023 Generalizations of the 1-factorial tests by Kruskal-Wallis and Friedman, as well as of the van der Waerden test are proposed for factorial split-plot designs, both allowing interactions.
Haiko Lüpsen
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