“…Sample sizes ranged from (n = 3) medical students in one qualitative study (Dharamsi et al, 2010b) to (n = 3450) students from multiple disciplines in a quasi experimental study (Astin & Sax, 1998). Examples of the methodological weaknesses identified included samples from single institutions (Beling, 2004;Bentley & Ellison, 2005;Champagne, 2006;Horacek et al, 2009;Leung et al, 2011;Liang En et al, 2011b;Loewenson and Hunt, 2011) with a variety of potential biases, for example, self-selection bias for students (Ngai, 2009;Green et al, 2011;Reading & Padgett, 2011) possible positive reporting bias (Kearney, 2004;Reynolds, 2005;Brown, 2009;Liang En et al, 2011b;Loewenson & Hunt, 2011) and social desirability bias (Casey and Murphy, 2008;Loewenson & Hunt, 2011). Of the 26 Quasi-experimental studies the majority (n = 20) used some form of self-report measure as did (n = 6) of the mixed method studies.…”