This is a tutorial on how to use the R package dplyr for joining two datasets in R. This video video was recorded for the course "Data Science for Psychology: Methods and Applications" of the National University of Singapore. Code used in the slides are available here:
https://gist.github.com/SachaEpskamp/9ed29da6bfdbd6e008d9a6422e6e3449#file-joins-r