A note on sampling biases in the Bangladesh mask trial [PDF]
A recent cluster trial in Bangladesh randomized 600 villages into 300 treatment/control pairs, to evaluate the impact of an intervention to increase mask-wearing. Data was analyzed in a generalized linear model and significance asserted with parametric tests for the rate of the primary outcome (symptomatic and seropositive for COVID-19) between ...
arxiv
Analysis of Hi-C datasets is limited by the current existing methods for data normalization, with detection of features such as TADs and chromatin loops being inconsistent amongst different approaches.
Yannick G. Spill+3 more
doaj +1 more source
More accurate tests for the statistical significance of result differences [PDF]
Statistical significance testing of differences in values of metrics like recall, precision and balanced F-score is a necessary part of empirical natural language processing. Unfortunately, we find in a set of experiments that many commonly used tests often underestimate the significance and so are less likely to detect differences that exist between ...
arxiv
Estimation of Variances at Different Significance Levels
AbstractVariance components and their ratios broad‐sense heritability and constancy were estimated for some quantitative traits in northwestern Spain populations of maize. Estimations were carried out at the significance levels of 5% and 25% and without significance limits.
Ron Pedreira, Antonio Miguel de+1 more
openaire +3 more sources
Are University Rankings Statistically Significant? A Comparison among Chinese Universities and with the USA [PDF]
Purpose: We address the question of whether differences are statistically significant in the rankings of universities. We propose methods measuring the statistical significance among different universities and illustrate the results by empirical data. Design/methodology/approach: Based on z-testing and overlapping confidence intervals, and using data ...
arxiv
Understanding statistics—“Is there a significant difference?” [PDF]
BMJ Learning offers online learning resources to help you with your appraisal and revalidation. These resources train and test your skills in a variety of clinical and non-clinical topics. We aim to publish new modules every month, and this month we have published an interactive case history, “Understanding statistics—‘Is there …
openaire +2 more sources
Ethnic Differences in the Developmental Significance of Parentification [PDF]
Using an ecological framework, this 2-wave longitudinal study examined the effects of parentification on youth adjustment across the transition to adolescence in a high-risk, low-income sample of African American (58%) and European American (42%) mother-child dyads (T1 Mage = 10.17 years, T2 Mage = 14.89 years; 52.4% female).
Tamar Y. Khafi+2 more
openaire +3 more sources
Comparison of Network Analysis Approaches on EEG Connectivity in Beta during Visual Short-Term Memory Binding Tasks [PDF]
We analyse the electroencephalogram signals in the beta band of working memory representation recorded from young healthy volunteers performing several different Visual Short-Term Memory (VSTM) tasks which have proven useful in the assessment of clinical and preclinical Alzheimer's disease. We compare network analysis using Maximum Spanning Trees (MSTs)
arxiv +1 more source
FEMORAL NECK ANTEVERSION: IS THE SIDE WISE DIFFERENCE SIGNIFICANT?
Background: Femoral anteversion is one of the most important parameter of femur anatomy and geometry having important clinical implications. The objective of this study was to determine the side wise variation in femoral neck anteversion angle in adult
Wali Ullah Khan+3 more
doaj
On the significance of the excesses in the ATLAS diphoton and four lepton decay channels [PDF]
This note describes an assessment of the statistical significance of the recently released ATLAS data regarding the Higgs search in the decay channels especially suited for the low mass region, in particular the diphoton and four lepton decay channels.
arxiv