This lesson is being piloted (Beta version)

Statistical Comparisons using R

This practical workshop will help participants to choose and use the appropriate standard statistical test for their data by introducing key concepts of inferential statistics in R. Participants will learn how to compute and interpret hypothesis tests for popular statistical models such as correlation, contingency tables, chi-square test, t-test and ANOVA.

The workshop is recommended for researchers wanting to understand how to choose the right statistical test for the context/condition and how to conduct the analysis by themselves using R. The workshop is relevant for all disciplines, although examples and exercises will be based around biological and clinical datasets.

Learning Objectives
During the workshop, participants will learn how to:

Syllabus
Topics covered during the workshop will include:

Prerequisites

Prior knowledge of R is required (the R for Reproducible Scientific Research Software Carpentry workshop is highly recommended) as the basics of R will not be covered.

Schedule

Setup Download files required for the lesson
00:00 1. Introduction to Hypothesis Testing What are inferential statistics?
What is a hypothesis?
How can I test a hypothesis?
00:55 2. Preparation of Data How can I import a dataset into R?
01:50 3. Relationship Between Continuous Variables What are continuous variables?
How do I evaluate the relationship between two continuous variables?
02:45 4. Categorical Variables What is a categorical variable?
What statistical tests are used with categorical data?
03:40 5. Comparison Between Two Groups Do two sample groups differ for a continuous trait?
04:35 6. Testing For More Than Two Groups Are the group means different among three or more groups?
05:30 7. Multiple testing, summary, and final exercises How do we interpret p-values when mutiple comparisons are carried out?
06:25 Finish

The actual schedule may vary slightly depending on the topics and exercises chosen by the instructor.