Results 41 to 50 of about 3,789,491 (216)

Basic Statistical Concepts for Sample Size Estimation

open access: yesIndian Journal of Anaesthesia, 2008
For grant proposals the investigator has to include an estimation of sample size .The size of the sample should be adequate enough so that there is sufficient data to reliably answer the research question being addressed by the study.
Vithal K Dhulkhed   +4 more
doaj  

Basic principles of sample size calculation

open access: yesJournal of the Practice of Cardiovascular Sciences, 2020
The calculation of sample size helps a medical researcher to assess cost, time, and feasibility of his project besides scientific justification and validity. Although frequently reported in journals, the details or the elements of sample size calculation
Shivam Pandey
doaj   +1 more source

AS-PD: An Arbitrary-Size Downsampling Framework for Point Clouds [PDF]

open access: yesarXiv, 2022
Point cloud downsampling is a crucial pre-processing operation to downsample points in order to unify data size and reduce computational cost, to name a few. Recent research on point cloud downsampling has achieved great success which concentrates on learning to sample in a task-aware way.
arxiv  

Sample size calculation

open access: yesAllergologia et Immunopathologia, 2014
When designing any research project, definition is required of the sample size needed in order to carry out the study. This sample size is an estimate of the number of patients required in accordance with the pursued study objective. In this context, it is more efficient in terms of both cost and time to use samples than to work with the entire ...
AR González-Ramírez   +1 more
openaire   +3 more sources

Statistical sensitiveness for science [PDF]

open access: yesarXiv, 2016
Research often necessitates of samples, yet obtaining large enough samples is not always possible. When it is, the researcher may use one of two methods for deciding upon the required sample size: rules-of-thumb, quick yet uncertain, and estimations for power, mathematically precise yet with the potential to overestimate or underestimate sample sizes ...
arxiv  

Lower bounds for the expected sample size in the classical and d-posterior statistical problems

open access: yesУчёные записки Казанского университета: Серия Физико-математические науки, 2018
In this report, the problem of construction of lower boundaries for the expected sample size of statistical inference procedures has been considered. The general methodology for construction of the lower bounds and the review of the main results for the ...
I.A. Kareev, I.N. Volodin
doaj  

Sample size [PDF]

open access: yesJournal of the American Academy of Dermatology, 2018
Deborah Mikyo Oh, Fred Pyrczak
openaire   +3 more sources

The Sample Size

open access: yesJournal of Universal College of Medical Sciences, 2014
Finding an "appropriate sample size" has been the most basic and foremost problem; a research worker is always faced with, in all sampling based analytical researches. This is so, since a very large sized sample results to unnecessary wastage of resources, while a very small sized sample may affect adversely the accuracy of sample estimates and thus in
openaire   +3 more sources

Blinded sample size re-estimation in three-arm trials with 'gold standard' design [PDF]

open access: yes, 2016
The sample size of a clinical trial relies on information about nuisance parameters such as the outcome variance. When no or only limited information is available, it has been proposed to include an internal pilot study in the design of the trial. Based on the results of the internal pilot study, the initially planned sample size can be adjusted.
arxiv   +1 more source

How sample size influences research outcomes

open access: yesDental Press Journal of Orthodontics, 2014
Sample size calculation is part of the early stages of conducting an epidemiological, clinical or lab study. In preparing a scientific paper, there are ethical and methodological indications for its use.
Jorge Faber, Lilian Martins Fonseca
doaj   +1 more source

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