Transformation in the Psyche in the Congress 60: A Qualitative Study of Changes in Treatment Outcomes in Substance Use Disorders

Abstract Background: Congress 60, as an NGO, provides services to people with substance use disorders (SUDs). Despite offering services and evaluating their effectiveness in several studies, the underlying theory of interventions and the impact process of these interventions have not been investigated within this organization. The purpose of this study is to obtain the underlying theory of changes in treatment outcomes in this organization. Methods: To achieve this theory, the grounded theory methodology was used. The data for this study