Results 31 to 40 of about 12,763,770 (297)

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, Eray Yurtseven, Fatma Nihan Turhan Çağlar, Mehmet Güven Günver   +3 more
doaj   +1 more source

Characterising and justifying sample size sufficiency in interview-based studies: systematic analysis of qualitative health research over a 15-year period

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, Julie Barnett, Susan Thorpe, Terry Young   +3 more
doaj   +1 more source

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

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, Steve, Holleran, Rajasekhar, Ramakrishnan   +2 more
openaire   +2 more sources

An investigation of skewness, sample size, and test standardisation [PDF]

, 2014
In psychological assessment, a raw score transformation is the first step in the clinical decision-making process. During this process, clinicians will transform a raw score typically using linear standardised scores and a normative sample with ...
Piovesana, Adina M.
core   +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

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.
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, Hoen, P.A.C. (Peter) 't, van Ommen GJB, Menezes, R.X., PAC 't Hoen, Boer, J.M. (Judith), Dunnen, J.T., den, Pedotti, P., Iterson, M. (Maarten) van, GJEJ Hooiveld, P Pedotti, Hooiveld GJEJ, RX Menezes, Menezes, R.X. (Renee) de, Dunnen, J.T. (Johan) den, Hooiveld, G.J.E.J., GJB van Ommen, 't Hoen PAC   +29 more
core   +1 more source

Sample size.

, 2022
Sample size.
Michel Mainack Dione (11406002), Cheick Abou Kounta Sidibé (12481793), Abdou Fall (12481796), Amadou Séry (12481790), Barbara Wieland (402405)   +4 more
core   +1 more source

Comparative Drug Response Profiling in Neuroblastoma Cell Lines and Patient‐Derived Tumor Organoids

Pediatric Blood &Cancer, EarlyView.
ABSTRACT High‐risk neuroblastoma remains a leading cause of pediatric cancer mortality, and improved preclinical models are needed to guide therapeutic developments. We screened seven high‐risk neuroblastoma cell lines and three patient‐derived tumor organoids with 528 compounds alongside bone marrow controls, and compared them with external datasets ...
Krzysztof Wierbiłowicz, Se Whee Sammy Park, Aironas Los, Ernest Liu, Nona Struyf, Tom Erkers, Sören Lehmann, Jan J. Molenaar, Jakob Stenman, Olli Kallioniemi, Päivi Östling, Brinton Seashore‐Ludlow, Kasper Karlsson   +12 more
wiley   +1 more source

Social Functioning Within the First Years After Pediatric Brain Tumor Diagnosis and the Relationship With Family Psychosocial Risk

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Survivors of pediatric brain tumors (PBTs) can experience long‐term social difficulties, impacting quality of life. Beyond medical and environmental factors, family psychosocial risk may play a role in social outcomes by shaping the caregiving environment and may provide intervention options.
Renske H. Houben, Marisa H. Huisman, Martha A. Grootenhuis, Femke K. Aarsen, Marita Partanen   +4 more
wiley   +1 more source