“…Validate user-generated data (Skarlatidou et al, 2019;Musto and Dahanayake, 2021) Enable informal learning through the execution of tasks (Jennett et al, 2016) Empower learners to practically apply their skills to real-world data (Bhargava et al, 2015;Ridsdale et al, 2015;D'Ignazio, 2022) Facilitate entering user-generated data (Newman et al, 2010;Sturm et al, 2018;Skarlatidou et al, 2019) Enable data analysis and visualization (Newman et al, 2010;Wald et al, 2016;Skarlatidou et al, 2019;Musto and Dahanayake, 2021) Support (SU) Provide separate support pages (Skarlatidou et al, 2019) Enable formal learning (Jennett et al, 2016) Provide a guided tool (D'Ignazio and Bhargava, 2016) Provide educational material (Wald et al, 2016) Provide interactive tutorials and information (Jennett and Cox, 2016;Skarlatidou et al, 2019) Communi cation (CO) Enable communication between participants (Newman et al, 2010;Wald et al, 2016;Sturm et al, 2018;Skarlatidou et al, 2019) Enable informal learning through interaction (Jennett et al, 2016) Enable two-sided learning for an empowering effect (De Albuquerque and Almeida, 2020) Enable communication between participants and researchers (Newman et al, 2010;Yadav and Darlington, 2016;Sturm et al, 2018;Skarlatidou et al, 2019)…”