Results 31 to 40 of about 11,717,609 (299)

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

Toxins, 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, Christopher Elliott, Guangtao Zhang, Bob Baker, Julie Meneely   +4 more
doaj   +1 more source

Probabilistic thinking is the name of the game: Integrating test and confidence intervals to plan sample sizes

, 2022
Having high statistical power and good estimated precision are essential to statistical practice; however, this integrative consideration on sample size planning remains limited in the literature, especially for two-group mean comparisons with unequal ...
Luh, Wei-Ming
core   +1 more source

Tamanho da amostra para avaliação de componentes do rendimento na cultura do feijoeiro Sample size to evaluate some bean agronomic characteristics

Ciência Rural, 1996
Com base em resultados de experimentos conduzidos nos anos agrícolas de 1991/92 e 1992/93 no Departamento de Fitotecnia da Universidade Federal de Santa Maria com as cultivares de feijoeiro Iraí e Macanudo, calculou-se o tamanho da amostra necessário ...
Valduíno Estefanel, Jerson Vanderlei Carús Guedes, Wilson Manara   +2 more
doaj   +1 more source

Relative power and sample size analysis on gene expression profiling data [PDF]

, 2009
Background: With the increasing number of expression profiling technologies, researchers today are confronted with choosing the technology that has sufficient power with minimal sample size, in order to reduce cost and time.
Iterson, M. van, Boer, J.M., Boer JM, JM Boer, JT den Dunnen, Iterson, M., van, Hoen, P.A.C., 't, Menezes RX, M van Iterson, den Dunnen JT, van Iterson M, Ommen, G.J.B. van, Pedotti P, Ommen, G.J.B., van, van Ommen, G.J.B., Hoen, P.A.C. (Peter) 't, den Dunnen, J.T., van Ommen GJB, Menezes, R.X., PAC 't Hoen, Hoen, P.A.C. 't, Boer, J.M. (Judith), Dunnen, J.T., den, Pedotti, P., Iterson, M. (Maarten) van, GJEJ Hooiveld, P Pedotti, Dunnen, J.T. den, Hooiveld GJEJ, RX Menezes, Menezes, R.X. (Renee) de, van Iterson, M., van Ommen, G.J.B, Dunnen, J.T. (Johan) den, Hooiveld, G.J.E.J., GJB van Ommen, 't Hoen PAC, 't Hoen, P.A.C., Ommen, G.J.B van   +38 more
core   +2 more sources

The Tokophobia Severity Scale (TSS): measurement model, power and sample size considerations.

, 2021
: To examine the measurement model of the Tokophobia Severity Scale and consider issues of statistical power and sample size from the original instrument development study.
Marshall, Claire A, Huang, Chao, Jones, Catriona, Martin, Colin R, Jomeen, Julie, Boubert, Laura   +5 more
core   +1 more source

Weak Limit of Sample Range and Midrange For Random Sample Sizes [PDF]

The Egyptian Statistical Journal, 1990
The present work deals with the weak convergence of sample range and midrange when the sample size is a positive integer-valued random variable (r.v.).
H. Barakat, E. Nigm
doaj   +1 more source

Published correlational effect sizes in social and developmental psychology

Royal 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, Dénes Szűcs, John P. A. Ioannidis   +2 more
doaj   +1 more source

Ethics and Sample Size [PDF]

American Journal of Epidemiology, 2005
The belief is widespread that studies are unethical if their sample size is not large enough to ensure adequate power. The authors examine how sample size influences the balance that determines the ethical acceptability of a study: the balance between the burdens that participants accept and the clinical or scientific value that a study can be expected
Bacchetti, Peter, Wolf, Leslie E., Segal, Mark R., McCulloch, Charles E.   +3 more
openaire   +2 more sources

How Small Is Big: Sample Size and Skewness [PDF]

, 2018
Sample sizes of 50 have been cited as sufficient to obtain stable means and standard deviations in normative test data. The influence of skewness on this minimum number, however, has not been evaluated. Normative test data with varying levels of skewness
Piovesana, Adina, Senior, Graeme
core   +1 more source

Sample size calculation: Basic principles

Indian Journal of Anaesthesia, 2016
Addressing a sample size is a practical issue that has to be solved during planning and designing stage of the study. The aim of any clinical research is to detect the actual difference between two groups (power) and to provide an estimate of the ...
Sabyasachi Das, Koel Mitra, Mohanchandra Mandal   +2 more
doaj   +1 more source