Category: Statistical Tests

Anatomy of a Diagnostic Test – an R Shiny Example by Saunak Sen

Written by Tristan Hayes

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BERDOnline ContentStatistical Tests

The positive and negative predictive values of a dignostic test depend not only on its sensitivity and specificity, but also the prevalence of the disease (or the pre-test probability of disease).  This interactive display illustrates that inter-dependence. Move the sensitivity, specificity, and disease prevalence sliders, and watch the positive and negative predictive value sliders change… Read More

Which test to use in what situation [outside article]

Written by Tristan Hayes

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BERDStatistical Tests

Having trouble deciding what statistical test to use for your data? Use this handy flowchart from Penn State to decide. It includes a review of all the statistical techniques provided, as well as a table consisting of inferences, parameters, statistics, types of data, examples, analysis, Minitab commands, and conditions.     https://newonlinecourses.science.psu.edu/stat500/node/67/