These lessons are meant to help research assistants and students in Research Methods courses learn to use R to analyze data in Psychology. Instructors can feel free to adapt them for use in your labs or courses.
Installation guide
For those who have never installed R or R Studio, or need to re-install it:
Getting Started with R and R Studio: Installation Guide
Lesson 1: Reading in Data and Basic Descriptives
Lesson 1: Reading in Data, Setting a Working Directory, Making a Project, and Basic Descriptives