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Modelling digestive hydrolysis of nutrients in fish using factorial designs and desirability function. [PDF]

open access: goldPLoS ONE, 2018
Models simulating the in vitro digestive hydrolysis of nutrients by different animal species are frequently used to obtain a better understanding of factors affecting this process.
Neda Gilannejad   +3 more
doaj   +5 more sources

Raw Data Visualization for Common Factorial Designs Using SPSS: A Syntax Collection and Tutorial [PDF]

open access: yesFrontiers 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
doaj   +3 more sources

Factorial Designs Help to Understand How Psychological Therapy Works [PDF]

open access: yesFrontiers in Psychiatry, 2020
A large amount of research time and resources are spent trying to develop or improve psychological therapies. However, treatment development is challenging and time-consuming, and the typical research process followed—a series of standard randomized ...
Edward R. Watkins, Alexandra Newbold
doaj   +3 more sources

Unbalanced 2 x 2 factorial designs and the interaction effect: a troublesome combination. [PDF]

open access: yesPLoS ONE, 2015
In this power study, ANOVAs of unbalanced and balanced 2 x 2 datasets are compared (N = 120). Datasets are created under the assumption that H1 of the effects is true. The effects are constructed in two ways, assuming: 1.
Johannes A Landsheer   +1 more
doaj   +3 more sources

QANOVA: quantile-based permutation methods for general factorial designs [PDF]

open access: hybridTest (Madrid), 2021
Population means and standard deviations are the most common estimands to quantify effects in factorial layouts. In fact, most statistical procedures in such designs are built toward inferring means or contrasts thereof.
Marc Ditzhaus   +2 more
openalex   +3 more sources

Multilevel factorial designs with experiment-induced clustering. [PDF]

open access: yesPsychol Methods, 2018
Factorial experimental designs have many applications in the behavioral sciences. In the context of intervention development, factorial experiments play a critical role in building and optimizing high-quality, multicomponent behavioral interventions. One
Nahum-Shani I, Dziak JJ, Collins LM.
europepmc   +2 more sources

Use of Factorial Designs to Reduce Stability Studies for Parenteral Drug Products: Determination of Factor Effects via Accelerated Stability Data Analysis [PDF]

open access: yesPharmaceutics
Objectives: This study explores the potential of factorial analysis as an alternative strategy for optimizing stability study designs for registration batches—an approach not currently addressed in ICH Q1D, which focuses solely on bracketing and ...
Lara Pavčnik   +3 more
doaj   +2 more sources

Performing Contrast Analysis in Factorial Designs: From NHST to Confidence Intervals and Beyond. [PDF]

open access: yesEduc Psychol Meas, 2017
Because of the continuing debates about statistics, many researchers may feel confused about how to analyze and interpret data. Current guidelines in psychology advocate the use of effect sizes and confidence intervals (CIs).
Wiens S, Nilsson ME.
europepmc   +2 more sources

GFD: An R Package for the Analysis of General Factorial Designs

open access: yesJournal of Statistical Software, 2017
Factorial designs are widely used tools for modeling statistical experiments in all kinds of disciplines, e.g., biology, psychology, econometrics and medicine. For testing null hypotheses in this framework, ANOVA methods are widely used.
Sarah Friedrich   +2 more
doaj   +2 more sources

A Bayesian approach to the selection of two-level multi-stratum factorial designs [PDF]

open access: bronzeAnnals of Statistics, 2018
In a multi-stratum factorial experiment, there are multiple error terms (strata) with different variances that arise from complicated structures of the experimental units. For unstructured experimental units, minimum aberration is a popular criterion for
Ming-Chung Chang, Ching‐Shui Cheng
openalex   +2 more sources

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