“…Second, data transparency is generally low ( Elson & Przybylski, 2017 ; Wicherts, Borsboom, Kats, & Molenaar, 2006 ). As far as we are aware, only three of the dozens of publications in the gaming disorder literature openly share their data and materials ( Przybylski, 2016 ; Przybylski et al., 2017 ; Weinstein, Przybylski, & Murayama, 2017 ). The fact that so few data sets are publicly available is problematic, because it raises the concern that errors in these data sets will go undetected ( King, Haagsma, Delfabbro, Gradisar, & Griffiths, 2013 ).…”