Reliable Change Index as an alternative for assessing the effectiveness of Music Therapy

The recognition of music therapy as an effective intervention is growing, albeit still in its early stages in many contexts. Therefore, the need for robust evaluation methods has become increasingly apparent. This presentation elaborates on a study that employs the Jacobson-Truax Method (JT Method) to assess the effectiveness of music therapy using the Reliable Change Index (RCI) and the analysis of Clinical Significance. The JT Method allows for the calculation of changes between pre- and post-intervention assessments, providing a reliable measure of individual progress. This study leverages data from the Music Therapy in Mental Health project (SIEX/UFMG – 402786), which operates in two distinct settings: a treatment center for individuals with substance use disorders and a therapeutic residence. By utilizing psychometric techniques, the study quantitatively analyzes data collected through standardized measurement instruments, specifically the Assessment Scale for Group Music Therapy in Substance Use Disorders (MTDQ) and the Cognitive Assessment of Elderly in Music Therapy (ACPIM). The primary objective is to explore the JT Method as a viable alternative for evaluating the efficacy of music therapy. The presentation will detail how the RCI was used to detect reliable changes within individuals, even in cases where null hypothesis tests showed no statistically significant group-level changes. Additionally, the study compares clinical significance to statistical significance, offering a comprehensive view of the therapeutic impact. This research is relevant to international music therapists, as it provides a robust framework for evaluating the effectiveness of music therapy across various cultural and clinical settings. By presenting these findings, we aim to encourage the adoption of the JT Method in different parts of the world, enhancing the global practice and research of music therapy.