Results 1 to 10 of about 690,202 (278)
Sample size calculation in clinical research [PDF]
Perspectives in Clinical ResearchCalculation of sample size is an essential part of research study design since it affects the reliability and feasibility of the research study. In this article, we look at the principles of sample size calculation for different types of research studies.
Priya Ranganathan +2 more
doaj +5 more sources
Amrita Journal of Medicine, 2023 In the chapter of the book titled "MZ Islam's Research Methodology", the focus is on the crucial aspect of sample size calculation, which plays a key role in designing robust research studies. The chapter outlines the importance of determining an appropriate sample size, as it directly affects the reliability, validity, and generalizability of research
S Saraswathy +3 more
doaj +9 more sources
Sample size calculation in clinical trial using R [PDF]
Journal of Minimally Invasive Surgery, 2023 Since the era of evidence-based medicine, it has become a matter of course to use statistics to create objective evidence in clinical research. As an extension of this, it has become essential in clinical research to calculate the correct sample size to ...
Suyeon Park +3 more
doaj +3 more sources
Reporting Sample Size Calculation in Randomized Clinical Trials Published in 4 Orthodontic Journals [PDF]
Turkish Journal of Orthodontics, 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
Marialicia Calderon-Augusto +2 more
doaj +3 more sources
Sample Size Calculation in Genetic Association Studies: A Practical Approach [PDF]
Life, 2023 Genetic association studies, testing the relationship between genetic variants and disease status, are useful tools for identifying genes that grant susceptibility to complex disorders.
Cristina Politi +3 more
doaj +3 more sources
Principles of sample size calculation
Indian Journal of Ophthalmology, 2010 In most areas in life, it is difficult to work with populations and hence researchers work with samples. The calculation of the sample size needed depends on the data type and distribution.
Gogtay Nithya
doaj +4 more sources
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
doaj +4 more sources
Sample size calculations for indirect standardization [PDF]
BMC Medical Research Methodology, 2023 Indirect standardization, and its associated parameter the standardized incidence ratio, is a commonly-used tool in hospital profiling for comparing the incidence of negative outcomes between an index hospital and a larger population of reference ...
Yifei Wang, Philip Chu
doaj +4 more sources
Tips for troublesome sample-size calculation [PDF]
Korean Journal of Anesthesiology, 2020 Properly set sample size is one of the important factors for scientific and persuasive research. The sample size that can guarantee both clinically significant differences and adequate power in the phenomena of interest to the investigator, without ...
Junyong In +7 more
doaj +5 more sources
Sample size calculation for phylogenetic case linkage. [PDF]
PLoS Computational Biology, 2021 Sample size calculations are an essential component of the design and evaluation of scientific studies. However, there is a lack of clear guidance for determining the sample size needed for phylogenetic studies, which are becoming an essential part of ...
Shirlee Wohl +2 more
doaj +2 more sources