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Sample Size Calculation For Complex Sampling Designs (Version 1.0) [PDF]
Before conducting a survey, researchers frequently ask themselves how large the resulting sample of respondents needs to be to answer their research questions.
Felderer, Barbara +2 more
core +1 more source
ABSTRACT Primary lung carcinomas and bronchial carcinoid tumors (BC) are very rare malignancies in childhood. While typical BC and mucoepidermoid carcinomas are mostly low‐grade, localized tumors with a more favorable prognosis than in adults, necessitating avoidance of overtreatment, adenocarcinomas of the lung are often diagnosed at advanced disease ...
Michael Abele +19 more
wiley +1 more source
Considerations when calculating the sample size for an inequality test [PDF]
Click here for Korean Translation.Calculating the sample size is a vital step during the planning of a study in order to ensure the desired power for detecting clinically meaningful differences.
Junyong In
doaj +1 more source
The power of sample size calculations
Abstract Researchers frequently come across sample size calculations in the scientific literature they read, in projects undertaken by their peers, and likely within their own work. However, despite its ubiquity, calculating a sample size is often perceived as a hurdle and not fully understood.
Marieke S Jansen +2 more
openaire +3 more sources
Sample size calculations for skewed distributions [PDF]
Sample size calculations should correspond to the intended method of analysis. Nevertheless, for non-normal distributions, they are often done on the basis of normal approximations, even when the data are to be analysed using generalized linear models (GLMs).For the case of comparison of two means, we use GLM theory to derive sample size formulae, with
Cundill, B, Alexander, NDE
openaire +4 more sources
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen +23 more
wiley +1 more source
ABSTRACT Background PIK3CA‐related overgrowth spectrum (PROS) includes several rare overgrowth disorders resulting from somatic gain‐of‐function mutations in PIK3CA. Despite treatment advances, including the recent approval of alpelisib for PROS in the United States, literature detailing the patient experience with PROS is limited.
Vamsi Bollu +8 more
wiley +1 more source
Sample size calculations made easy using G*Power [PDF]
G*power is a free software that helps researchers to calculate the sample size needed when conducting a research. The importance of sample size calculation is imperative for the knowledge of researchers.
Wan Ahmad, Wan Muhamad Amir +3 more
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