“…If clinical psychology is going to change the basis for how mental illness is conceptualized, assessed, and treated, then the new system should be better than the old system. At some point, this means moving on from the like-goes-with-like symptom approach to classification and focusing on more progressive, dynamic, novel, and diverse classification strategies and theories (e.g., Barlow et al, 2021; Beck & Haigh, 2014; Berenbaum, 2013; Borsboom, 2017a; Del Giudice & Haltigan, 2021; Follette & Houts, 1996; Gone & Kirmayer, 2010; Luyten & Blatt, 2011; Mansell et al, 2009; Molenaar, 2004; Robinaugh et al, 2021; Smith et al, 2009; Thomas & Sharp, 2019; Wilshire et al, 2021; Zachar & Kendler, 2017).…”