Translating the Clinical Outcomes in Routine Evaluation Outcome Measure (CORE-OM) into Lithuanian.

Background: There are no standardized tools in Lithuanian feasible for ongoing routine use to measure the effectiveness of psychotherapeutic treatment. The CORE-OM is a widely used 34-item self-report measure for such purpose.

Aims: To explore the reliability, validity and sensitivity of the Lithuanian translation of CORE-OM questionnaire.