Changes in the YLS/CMI risk inventory scores as predictors of MST behavioral treatment goals

Purpose This study aims to investigate outcomes of multisystemic therapy (MST) using the Youth Level of Service/Case Management Inventory (YLS/CMI) – part I. Design/methodology/approach This study, using a pre-post design, included a sample of 2,123 Norwegian youths (mean age = 14.7, SD = 1.34). The MST team supervisors assessed the YLS/CMI risk factors in addition to five behavioral treatment goals (Lives at home, Attends school/work, No violence/threats, Law-abiding and Drug-free) before and after treatment. In addition, data included responses from parent interviews six months post treatment. Findings Significant correlations were found between the total and dynamic YLS/CMI change scores and the additive index of behavioral treatment goals. In addition, the YLS/CMI change scores predicted the five treatment goals at the termination of treatment and at six-month follow-up. Research limitations/implications The results indicate that the YLS/CMI is a valuable assessment tool for predicting the achievement of MST behavioral goals in adolescents with serious problem behavior. Practical implications This study provides an evaluation of the YLS/CMI in a Norwegian context and adds support for continued use of the YLS/CMI in MST. Originality/value This paper provides new insights about the YLS/CMI inventory as a tool for examining treatment change in MST. Results show that the YLS/CMI captures relevant risk factors in the youths’ environment.