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Explorations in statistics: power

open access: yesAdvances in Physiology Education, 2010
Learning about statistics is a lot like learning about science: the learning is more meaningful if you can actively explore. This fifth installment of Explorations in Statistics revisits power, a concept fundamental to the test of a null hypothesis. Power is the probability that we reject the null hypothesis when it is false. Four things affect power:
openaire   +2 more sources

Statistical power to detect violation of the proportional hazards assumption when using the Cox regression model

open access: yesJournal of Statistical Computation and Simulation, 2017
The use of the Cox proportional hazards regression model is wide-spread. A key assumption of the model is that of proportional hazards. Analysts frequently test the validity of this assumption using statistical significance testing.
P. Austin
semanticscholar   +1 more source

Giving less power to statistical power

open access: yesLaboratory Animals
Researchers often need to justify their choice of sample size, particularly in fields such as animal and clinical research, where there are obvious ethical concerns about relying on too many or too few study subjects. The common approach is still to depend on statistical power calculations, typically carried out using simple formulas and ...
Megan Higgs, Valentin Amrhein
openaire   +1 more source

Statistical power in network neuroscience

open access: yesTrends in Cognitive Sciences, 2023
K. Helwegen   +2 more
semanticscholar   +1 more source

OPTIMAL SAMPLE SIZE FOR STATISTICAL ANALYSIS OF WINTER WHEAT QUANTITATIVE TRAITS [PDF]

open access: yesPoljoprivreda, 2009
In the planning phase of every research particular attention should be dedicated to estimation of optimal sample size, aiming to obtain more precise and objective results of statistical analysis.
Andrijana Eđed   +2 more
doaj  

Weighted averaging in spectroscopic studies improves statistical power [PDF]

open access: hybrid, 2017
Jack J. Miller   +3 more
openalex   +1 more source

Wind power prediction models [PDF]

open access: yes
Investigations were performed to predict the power available from the wind at the Goldstone, California, antenna site complex. The background for power prediction was derived from a statistical evaluation of available wind speed data records at this ...
Levy, R., Mcginness, H.
core   +1 more source

Power Estimation in Multivariate Analysis of Variance [PDF]

open access: yesTutorials in Quantitative Methods for Psychology, 2007
Power is often overlooked in designing multivariate studies for the simple reason that it is believed to be too complicated. In this paper, it is shown that power estimation in multivariate analysis of variance (MANOVA) can be approximated using a F ...
Jean François Allaire, Sylvain Chartier
doaj  

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