Hi everyone In evolutionary biology, confidence intervals are often used for depicting the statistical uncertainty surrounding various estimates, including evolutionary divergence times, phylogenetic relationships, and effect sizes of biological processes. They help researchers understand the precision of their estimates and make informed inferences about evolutionary processes. However, since their invention in the 1930's, researchers have recognized that readers will try to make inferences comparing estimates by evaluating whether confidence intervals overlap. A long line of research has discussed the pitfalls of this and attempted to build inferences around the probability that confidence intervals overlap under the null hypothesis - essentially burdening the visual display with an additional hypothesis testing function. To improve on this,Instats is offering free seminars on Using Confidence Intervals for Visual Testing for R (Oct 25) and Stata (Nov 1), with professor David Armstrong from the University of Western Ontario. These free seminars will explore new visual tools that allow researchers to understand the precision of their estimates and to visually compare different groups or conditions in a meaningful and statistically defensible way. Designed for researchers across many disciplines, the workshops will equip participants with the expertise needed to leverage confidence intervals effectively using R and Stata: https://instats.org/seminar/using-confidence-intervals-for-visual-testing-in-r-2248 https://instats.org/seminar/using-confidence-intervals-for-visual-testing-in-s-2166 Instats is also offering free seminars on Switching from SPSS to R (Nov 5) and Efficient Programming in R (Jan 27). We look forward to seeing you there! https://instats.org/seminar/switching-from-spss-to-r-free-2-hour-se2 https://instats.org/seminar/efficient-programming-using-r-free-semi2 Best wishes Michael Zyphur Director Institute for Statistical and Data Science instats.org Michael Zyphur (to subscribe/unsubscribe the EvolDir send mail to golding@mcmaster.ca) mzyphur@instats.org (to subscribe/unsubscribe the EvolDir send mail to golding@mcmaster.ca)