Results 11 to 20 of about 8,978,019 (319)

Multivariate methods and small sample size: combining with small effect size [PDF]

open access: yes, 2010
This manuscript is the author's response to: "Dochtermann, N.A. & Jenkins, S.H. Multivariate methods and small sample\ud sizes, Ethology, 117, 95-101." and accompanies this paper: "Budaev, S.
Budaev, Dr. Sergey V.
core   +1 more source

Permutation-based group sequential analyses for cognitive neuroscience

open access: yesNeuroImage, 2023
Cognitive neuroscientists have been grappling with two related experimental design problems. First, the complexity of neuroimaging data (e.g. often hundreds of thousands of correlated measurements) and analysis pipelines demands bespoke, non-parametric ...
John P. Veillette   +2 more
doaj   +1 more source

Rethinking the Effective Sample Size [PDF]

open access: yes, 2018
The effective sample size (ESS) is widely used in sample-based simulation methods for assessing the quality of a Monte Carlo approximation of a given distribution and of related integrals.
Elvira, Víctor   +2 more
core   +3 more sources

COMPARISON OF FREQUENTIST AND BAYESIAN APPROACHES ON SAMPLE SIZE: METHODOLOGIC STUDY

open access: yesSabiad, 2023
Objective: In the present study, we aimed to evaluate the effects of sample size on results of study by using frequentist and Bayesian approaches.Material and Methods: The small sample consisted of 32 patients with ischemic heart disease (IHD) and 37 ...
Cennet Yıldız   +3 more
doaj   +1 more source

PCA consistency in high dimension, low sample size context [PDF]

open access: yes, 2009
Principal Component Analysis (PCA) is an important tool of dimension reduction especially when the dimension (or the number of variables) is very high. Asymptotic studies where the sample size is fixed, and the dimension grows [i.e., High Dimension, Low ...
Jung, Sungkyu, Marron, J. S.
core   +3 more sources

Understanding Current Methods for Sampling of Aflatoxins in Corn and to Generate a Best Practice Framework

open access: yesToxins, 2022
Aflatoxin contamination in corn is a significant issue, posing substantial health threats to humans and animals. Aflatoxin testing protects consumer health, ensures the safe global trade of corn, and verifies compliance with legislation; however ...
Rossa Donnelly   +4 more
doaj   +1 more source

Female vs Males inmates: Authors' reply and sample size calculation [PDF]

open access: yes, 2019
Bruno and colleagues highlighted the relatively low absolute-percentage of psychiatric morbidity that we found in our sample, as compared to their male sample.
Ferraro L., La Cascia C.
core   +1 more source

Characterising and justifying sample size sufficiency in interview-based studies: systematic analysis of qualitative health research over a 15-year period

open access: yesBMC Medical Research Methodology, 2018
Background Choosing a suitable sample size in qualitative research is an area of conceptual debate and practical uncertainty. That sample size principles, guidelines and tools have been developed to enable researchers to set, and justify the ...
Konstantina Vasileiou   +3 more
doaj   +1 more source

Published correlational effect sizes in social and developmental psychology

open access: yesRoyal Society Open Science, 2022
The distribution of effect sizes may offer insights about the research done and reported in a scientific field. We have evaluated 12 412 manually collected correlation effect sizes (Sample 1) and 31 157 computer-extracted correlation effect sizes (Sample
Josefína Weinerová   +2 more
doaj   +1 more source

Confidence regions for the multinomial parameter with small sample size [PDF]

open access: yes, 2008
Consider the observation of n iid realizations of an experiment with d>1 possible outcomes, which corresponds to a single observation of a multinomial distribution M(n,p) where p is an unknown discrete distribution on {1,...,d}. In many applications, the
Blyth C. R.   +3 more
core   +6 more sources

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