Supplementary materials [research data] to: Weigl, K., & Ponocny, I. (2020). Group Sequential Designs Applied in Psychological Research. Methodology, 16(1), 75-91. https://doi.org/10.5964/meth.2811

Data: The data is an extract from the MODUL Studies of Living Conditions (Ponocny et al., 2015, 2016) and must not be used for any other purpose (except with the authors' permission) than (1) tracking and reproducing the results in this tutorial, and (2) teaching and demonstrating interim analyses.