“…It is worth noting that some authors (e.g., Meijer, Goedhart, & Treffers, 1998; de Vito, Ladame, & Orlandini, 1999) have argued against diagnosing borderline pathology during adolescence because of concerns about the instability and/or predictive validity of adolescent personality (see Grilo, Becker, Edell, & McGlashan, 2001; Johnson, Chen, & Cohen, 2004; Levy et al, 1999). However, research with adults has also increasingly revealed that personality disorder symptoms are less stable than once thought but have considerable predictive validity (Gunderson et al, 2011; Grilo et al, 2004; Hopwood et al, 2009; Hopwood & Zanarini, 2010; Samuel et al, 2011; Shea et al, 2002; Zanarini et al, 2007).…”