Results 21 to 30 of about 11,717,609 (299)
Reporting Sample Size Calculation in Randomized Clinical Trials Published in 4 Orthodontic Journals [PDF]
, 2021 Objective: The purpose of this study was to describe sample size calculations in randomized clinical trials (RCTs) published in 4 orthodontic journals.Methods:This cross-sectional study evaluated 142 RCTs published between 2015 and 2019 in the 4 journals
Carlos Flores-Mir +5 more
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Sample size considerations in research
Endodontology, 2023 “What should be the sample size for my study?” is a common question in the minds of every research at some point of the research cycle. Answering this question with confident is tough even for a seasoned researcher.
Shyam Sivasamy
doaj +1 more source
EDIS, 2009 Perhaps the most frequently asked question concerning sampling is "What size sample do I need?" The answer to this question is influenced by a number of factors, including the purpose of the study, population size, the risk of selecting a "bad" sample ...
Glenn D. Israel
doaj +1 more source
CGHpower: exploring sample size calculations for chromosomal copy number experiments [PDF]
, 2010 Background Determining a suitable sample size is an important step in the planning of microarray experiments. Increasing the number of arrays gives more statistical power, but adds to the total cost of the experiment.
Scheinin, A.I. +24 more
core +3 more sources
The just-about-right pilot sample size to control the error margin [PDF]
, 2023 In practice, the required sample size for a two-arm randomised controlled trial cannot always be determined pre-study with great accuracy. This lack of accuracy has economic, ethical and scientific implications.
Toher, Deirdre +2 more
core +1 more source
Permutation-based group sequential analyses for cognitive neuroscience
NeuroImage, 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
Do Registered Reports Improve Sample Size Planning in Psychology? An exploratory study [PDF]
, 2022 openThe paper aims to investigate whether Registered Reports (RRs) published on OSF used a justified sample size.The paper aims to investigate whether Registered Reports (RRs) published on OSF used a justified sample ...
NORSA, REBECCA
core
International Journal of Ayurveda Research, 2010 Bioactive compounds from marine flora and fauna have extensive past and present use in the treatment of many diseases and serve as compounds of interest both in their natural form and as templates for synthetic modification. Several molecules isolated from various marine organisms (microorganisms, algae, fungi, invertebrates, and vertebrates) are ...
Kadam, Prashant, Bhalerao, Supriya
openaire +6 more sources
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
doaj +1 more source
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
doaj +1 more source