“…Although individual and group formats of CBT for SAD appear to be equally effective in randomized controlled trials (Stangier, Heidenreich, Peitz, Lauterbach, & Clark, 2003), no studies have investigated the differential impact of these two forms of CBT for SAD on weekly changes in emotion regulation and social anxiety. Additionally, to understand the specificity of CBT effects on weekly changes in emotion regulation, it will be helpful to construct RCTs that directly compare weekly changes in different types of clinical interventions for SAD, including applied relaxation (Clark et al, 2006), internet-delivered CBT (Andersson, Carlbring, & Furmark, 2012; Titov, Andrews, Choi, Schwencke, & Mahoney, 2008), online virtual acceptance-based behavioral therapy (Yuen et al, 2013), interpersonal psychotherapy (Stangier, Schramm, Heidenreich, Berger, & Clark, 2011), psychodynamic short-term group treatment (Leichsenring et al, 2013), mindfulness-based interventions (Goldin & Gross, 2010; Jazaieri, Goldin, Werner, Ziv, & Gross, 2012; Piet, Hougaard, Hecksher, & Rosenberg, 2010). …”