“…Social anxiety disorder (SAD) (formerly called social phobia) is one of the most common anxiety disorders with up to 13% of people in the United States experiencing this disorder at some point during their lives (Ruscio et al, 2008). Individuals with SAD often present with substantial comorbid psychopathology, includ-Abbreviations: ABIC, adjusted BIC; AIC, Akaike's Information Criterion; BIC, Bayesian Information Criterion; LCA, latent class analysis; LRT, likelihood ratio test; NCS, National Comorbidity Survey; SAD, social anxiety disorder; SE, standard error ing major depressive disorder and substance use disorders (Blanco et al, 2011;Grant et al, 2005;Hoertel et al, 2014;Magee, Eaton, Wittchen, McGonagle, & Kessler, 1996;Schneier et al, 2010;Stein, Torgrud, & Walker, 2000) and constitute a heterogeneous group of patients according to the type of feared social situations, comorbid mental disorders, and quality of life (Bögels et al, 2010;Ruscio et al, 2008).…”