Tag: statistical tests

First Annual Survey on Management Software used in Statistical Consulting

Written by Tristan Hayes

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Online ContentStatistical Tests

Abstract: In a survey on software used to manage statistics consulting projects and billing, we received responses from 38 statistics and biostatistics departments. Of these, 31.2 % of departments reported no system for tracking projects and 34.2% reported no software in use for billing; 39.5% of departments used some combination of a REDCap/Google/Microsoft Form to capture client/project information; 8 organizations (21.1%) use… Read More

Seminar Slides | The Perfect Doctor | Dr. Fridtjof Thomas

Written by Tristan Hayes

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Statistical Tests

The-Perfect-Doctor-TN-CTSI-2019-05-28-handout Time: May 28th 12:00-1:00PM Location: Simulation Building Room 102 Presented by Fridtjof Thomas, PhD The Perfect Doctor: An introduction to Causal Inference Consider a Perfect Doctor that has the magical ability to pick from two treatments always the one that is better for each given patient. Can we learn about treatment effects by observing the… Read More

Seminar Slides | Multiple Comparisons and the False Discovery Rate | Dr. Saunak Sen

Written by Tristan Hayes

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Online Contentp-valuesStatistical Tests

Please click below for the slides from Dr. Saunak Sen’s presentation May 21st, 2019. Multiple Comparisons and the Falsefdr Discovery Rate

Seminar Slides: The Bayesian Approach to Data Analysis | Fridtjof Thomas

Written by Tristan Hayes

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Online Content

Please see below the slides from the seminar on May 15th, 2019 by Fridtjof Thomas. Seminar Slides Bayesian Approach to Data AnalysisBayesian-Approach-TN-CTSI-2019-05-14-handout

Seminar Slides: P-Value Discussion | Dr. Saunak Sen

Written by Tristan Hayes

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p-valuesStatistical Tests

Please see below for the sides from Dr. Sen’s seminar discussion. p-value-discussion

P-values – What they are and what they are not – Seminar Presentation Slides – Fridtjof Thomas

Written by Tristan Hayes

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p-valuesStatistical Tests

P-values: What they are and what they are not, will look in detail at good examples of using p-values and how to interpret them. After reviewing widely understood problems with p-values, attention is drawn to regularly encountered use of p-values where it is less clear what their correct interpretation actually is. Furthermore, we demonstrate why… Read More

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

Written by Tristan Hayes

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Online 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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Statistical 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/