All data of this project are deposited on the Open Science Framework Platform, including codebooks and further relevant information. The respective links to the different datasets are as follows:

Longitudinal Survey: https://osf.io/9vgwu/?view_only=0f316d4aae7d43a497e6641a0e83e123;
Diary Study: https://osf.io/fj2m7/?view_only=8a54bc1e53854855838d587fa585d612 
School Social Network Study: https://osf.io/4ea9w/?view_only=d3d3c9cbefb8418ca8b493ba5495628d