Multilevel modeling revealed significant linear decreases in social anxiety during CBGT (cognitive behavioral group therapy), b = −1.83, 95% CI [−2.28, −1.39], t = −8.18, p < .001, and MBSR (mindfulness-based stress reduction), b = −1.42, 95% CI [−1.87, −0.99], t = −6.40, p < .001. The group × session interaction was not significant, b = −0.40, 95% CI = −1.03 to 0.23, t = −1.27, p = .201.