“…Among the 13 articles were five correlational studies ( Hussain et al, 2012 ; Lee & Kim, 2017 ; Li & Wang, 2013 ; Spekman et al, 2013 ; Volmer et al, 2014;), five literature reviews ( Bass, 2015 ; Freeman, 2008 ; Dong & Potenza, 2014 ; Kuss, 2013 ; Young, 2009 ), one systematic review (29 quantitative studies and seven treatment studies) ( King & Delfabbro, 2014 ), one meta-analysis (on 10 high-quality articles) ( Meng et al, 2014 ), and one qualitative study ( Northrup & Shumway, 2014 ). A summary of the 13 included articles is provided in Table 1 .…”