“…Yet, results from studies on the five-factor structure reported in the original manual (Bernstein & Fink, 1998) have been mixed, with some studies supporting it whilst others only obtain partial support or suggest alternative models. A number of studies, based on both clinical and non-clinical samples, and including both adolescents and adults, predominantly from North America and Europe, have obtained support for the five-factor structure reported in the CTQ-SF manual (Bernstein et al, 2003;Dovran et al, 2013;Dudeck et al, 2015;Hernandez et al, 2013;Sacchi, Vieno, & Simonelli, 2018;Thombs, Bernstein, Lobbestael, & Arntz, 2009;Thombs, Lewis, Bernstein, Medrano, & Hatch, 2007). Moreover, some of these studies also tested and demonstrated the structural invariance or measurement equivalence of the original CTQ-SF five-factor structure across gender, age and subsamples (Bernstein et al, 2003;Dovran et al, 2013;Thombs et al, 2007).…”