Published in PeerJ
In recent years, researchers have attempted to provide an indication of the prevalence of inflated Type 1 error rates by analyzing the distribution of p-values in the published literature. De Winter & Dodou (2015) analyzed the distribution (and its change over time) of a large number of p-values automatically extracted from abstracts in the scienti...
Published in Journal of community hospital internal medicine perspectives
This is the second article of a series on fundamental concepts in biostatistics and research. In this article, the author reviews the manner in which researchers characterize data. Normality, standard deviation, mean, P value, and other concepts related to parametric statistics are discussed in common language, with a minimum of jargon and mathemat...
Published in Frontiers in neuroscience
Published in Journal of community hospital internal medicine perspectives
In this article, the author reviews the manner in which researchers characterize data. Normality, standard deviation, mean, and other concepts related to parametric statistics are discussed in common language, with a minimum of jargon and with clinical examples.
Published in F1000Research
Although thoroughly criticized, null hypothesis significance testing (NHST) remains the statistical method of choice used to provide evidence for an effect, in biological, biomedical and social sciences. In this short tutorial, I first summarize the concepts behind the method, distinguishing test of significance (Fisher) and test of acceptance (New...
The Portuguese Journal of Behavioral and Social Research requires authors to follow the recommendations of the Publication Manual of the American Psychological Association (APA, 2010) in the presentation of statistical information. One of the APA recommendations is that effect sizes should be presented along with levels of statistical significance....
Published in Frontiers in psychology
Published in Statistical Applications in Genetics and Molecular Biology
Conservative statistical tests are often used in complex multiple testing settings in which computing the type I error may be difficult. In such tests, the reported p-value for a hypothesis can understate the evidence against the null hypothesis and consequently statistical power may be lost. False Discovery Rate adjustments, used in multiple compa...
We experimentally evaluated a haptic touch slider in 8 parallel universes. The results were overall similar but exhibited surprisingly high variability in terms of statistical significance patterns. We discuss the general implications of these findings for empirical HCI research.
Published in Gene
Metals are a threat to human health by increasing disease risk. Experimental data have linked altered miRNA expression with exposure to some metals. MiRNAs comprise a large family of non-coding single-stranded molecules that primarily function to negatively regulate gene expression post-transcriptionally. Although several human populations are expo...
