International application of the "Multidimensional Intervention for Social Anxiety" (MISA) program: II. Treatment effectiveness for social anxiety-related problems Salazar Torres, Isabel Cristina Caballo Manrique, Vicente E. MISA Research Team Social anxiety Social skills Self-esteem Quality of life Personal sensitivity Worries Avoidant personality Treatment MISA program Effect size Ansiedad social Habilidades sociales Autoestima Calidad de vida Sensibilidad personal Preocupaciones Personalidad evitativa Tratamiento Programa IMAS Tamaño del efecto This study is part of the I+D+i project with reference RTI2018-093916-B-I00, funded by MCIN/AEI/10.13039/501100011033/and FEDER "A way of doing Europe". Support from the Foundation for the Advancement of Clinical Behavioral Psychology (FUNVECA) is also acknowledged. In a previous work (Caballo et al., 2021) we tested the effectiveness of the Multidimensional Intervention for Social Anxiety (MISA) program in reducing social anxiety symptoms. In this quasi-experimental study, with pre/post-treatment and follow-up measures, we examined the impact of the MISA program on other problems related to social anxiety. 57 people diagnosed with social anxiety disorder (SAD), according to DSM-5, were assessed with a diagnostic interview and questionnaires measuring social skills, depression, avoidant personality disorder symptoms, alcoholism, self-esteem, personal sensitivity, worries, and quality of life. Different therapists carried out the treatment in Ecuador, Spain, and Paraguay. The results showed significant improvements at post-treatment in virtually all measures assessing the above variables, improvements that were maintained at six months. Effect sizes on treatment effectiveness ranged from medium to large. The MISA program was also compared with individual cognitive behavioral therapy and pharmacological treatment, with favorable results for the MISA program. In conclusion, this new program for the treatment of social anxiety has a significant impact on other problems usually related to SAD. In a previous work (Caballo et al., 2021) we tested the effectiveness of the Multidimensional Intervention for Social Anxiety (MISA) program in reducing social anxiety symptoms. In this quasi-experimental study, with pre/post-treatment and follow-up measures, we examined the impact of the MISA program on other problems related to social anxiety. 57 people diagnosed with social anxiety disorder (SAD), according to DSM-5, were assessed with a diagnostic interview and questionnaires measuring social skills, depression, avoidant personality disorder symptoms, alcoholism, self-esteem, personal sensitivity, worries, and quality of life. Different therapists carried out the treatment in Ecuador, Spain, and Paraguay. The results showed significant improvements at post-treatment in virtually all measures assessing the above variables, improvements that were maintained at six months. Effect sizes on treatment effectiveness ranged from medium to large. The MISA program was also compared with individual cognitive behavioral therapy and pharmacological treatment, with favorable results for the MISA program. In conclusion, this new program for the treatment of social anxiety has a significant impact on other problems usually related to SAD. 2022-05-16T07:15:05Z 2022-05-16T07:15:05Z 2022-04-01 journal article Salazar, I. C... [et al.]. International application of the "Multidimensional Intervention for Social Anxiety" (MISA) program: II. Treatment effectiveness for social anxiety-related problems. Behavioral Psychology / Psicología Conductual, Vol. 30, Nº 1, 2022, pp. 19-49 [https://doi.org/10.51668/bp.8322102n] http://hdl.handle.net/10481/74841 10.51668/bp.8322102n eng http://creativecommons.org/licenses/by-nc-nd/3.0/es/ open access Atribución-NoComercial-SinDerivadas 3.0 España Fundación VECA para el Avance de la Psicología Clínica Conductual