These data consist of five simulated datasets and a syntax file written in R. All files were created for use in the recorded COORDINATE Workshop 2 (https://www.youtube.com/watch?v=DeyBKxa894E). In this workshop, Scott Milligan, from the GESIS Leibniz Institute for the Social Sciences, leads participants through a complete data harmonisation exercise. The exercise examines the correlation between experiences with bullying and children’s happiness. Participants may run through the process parallel to the recorded workshop. More information on the project and the Harmonisation Toolbox developed in the project are available on the project’s webpage https://www.coordinate-network.eu/harmonisation or in COORDINATE Harmonisation Workshop 1 (https://www.youtube.com/watch?v=DeyBKxa894E).