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A Theoretical Framework for Evaluating Psychiatric Research Strategies

open access: yesComputational Psychiatry, 2017
One of the major goals of basic studies in psychiatry is to find etiological mechanisms or biomarkers of mental disorders. A standard research strategy to pursue this goal is to compare observations of potential factors from patients with those from ...
Kentaro Katahira, Yuichi Yamashita
doaj   +1 more source

How to calculate statistical power for vegetation research [PDF]

open access: yesComputational Ecology and Software, 2020
Calculation of statistical power is important for proper interpretation of research results. Statistical Power depends on the selected significance level, sample size and effect size. Selection of an appropriate formula for calculating power of a test is
Mohammad Mousaei Sanjerehei
doaj  

An effective method for measuring text legibility in XR devices reveals clear differences between three devices

open access: yesFrontiers in Virtual Reality, 2023
Reading is a crucial aspect of the extended reality (XR) experience across various professional and recreational contexts. Legibility, which is defined as the ease with which a character can be recognized, is an essential determinant of readability.
Markku Kilpeläinen, Jukka Häkkinen
doaj   +1 more source

Impacts on study design when implementing digital measures in Parkinson's disease-modifying therapy trials

open access: yesFrontiers in Digital Health
IntroductionParkinson's Disease affects over 8.5 million people and there are currently no medications approved to treat underlying disease. Clinical trials for disease modifying therapies (DMT) are hampered by a lack of sufficiently sensitive measures ...
Jennie S. Lavine   +5 more
doaj   +1 more source

Statistical power: An historical introduction [PDF]

open access: yesTutorials in Quantitative Methods for Psychology, 2007
Despite the funding agencies’ growing demands towards power analyses, we believe researchers are still not fully aware of the statistical power concept, of the possible benefits of power analysis in the planning phase and of the ways to increase the ...
Jean Descôteaux
doaj  

A Review of Sample Size Determination for Common Experi-mental Designs: Further Simplified Equations [PDF]

open access: yesمجلة جامعة النجاح للأبحاث العلوم الطبيعية
Determination of the required sample size is an important step in the planning of any research study. A large number of commercial and online resources are readily available for calculation of sample size required for various research designs.
Jihad M. Abdallah
doaj   +1 more source

Power Analyses for Moderator Effects With (Non)Randomly Varying Slopes in Cluster Randomized Trials

open access: yesMethodology, 2021
Researchers often apply moderation analyses to examine whether the effects of an intervention differ conditional on individual or cluster moderator variables such as gender, pretest, or school size.
Nianbo Dong   +3 more
doaj   +1 more source

Intraoperative Collection of Ascitic Fluid With Intra‐ or Postoperative Reinfusion in Ovarian Cancer: Safety and Feasibility of a Roller Pumping Method

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Patients with ovarian cancer often present with massive ascites, leading to significant protein loss during surgical procedures. Although cell‐free concentrated ascites reinfusion therapy (CART) is used in palliative settings to mitigate protein loss, its application in intraoperative settings remains unexplored.
Yutaka Yoneoka   +7 more
wiley   +1 more source

Normrank Correlations for Testing Associations and for Use in Latent Variable Models

open access: yesOpen Education Studies
Pearson’s correlation is widely used to test for an association between two variables and also forms the basis of several multivariate statistical procedures including many latent variable models. Spearman’s ρ\rho is a popular alternative.
Wright Daniel B.
doaj   +1 more source

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

open access: yesFEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi   +5 more
wiley   +1 more source

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