Results 11 to 20 of about 4,030,855 (263)
COMPARISON OF FREQUENTIST AND BAYESIAN APPROACHES ON SAMPLE SIZE: METHODOLOGIC STUDY
Sabiad, 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
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BMC 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
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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 +4 more
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Sample Size Determination [PDF]
ILAR Journal, 2002 Scientists who use animals in research must justify the number of animals to be used, and committees that review proposals to use animals in research must review this justification to ensure the appropriateness of the number of animals to be used.
Ralph B, Dell +2 more
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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 +3 more
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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 +2 more
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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 +2 more
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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
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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 +2 more
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Methodological considerations for the design and implementation of reliable and valid web surveys
Public Health and Toxicology, 2021 This article examines practical epidemiology principles related to the design and implementation of web surveys. Six practice-oriented items are critically examined: 1) The study question; 2) The target population; 3) Study population needed; 4) Sampling
Israel Agaku
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