Validation of the Spanish Version of the Clinical Outcomes in Routine Evaluation-Outcome Measure (CORE-OM) in Chile

AIM: study the psychometric properties of the Spanish version of the Clinical Outcomes in Routine Evaluation-Outcome Measure (CORE-OM), an instrument that measures psychological distress, in the Chilean population. SAMPLES: two clinical samples (1. outpatients from three psychotherapeutic centers; two university clinics and a family mental health clinic and 2. self-reported clinical) and two non-clinical (1. university students; and 2. general community) samples. Students and community nonstudent participants who reported receiving psychological or psychiatric treatment (exclusion criterion) were excluded from the non-clinical sample and classified as self-reported clinical. DATA COLLECTION: In the clinical sample, data (paper questionnaire) is collected at one point if the patient is undergoing treatment and at four points (at baseline (i.e. before the first session), at 2, 5 and 8-weeks) if the patient is recruited before attending the first psychotherapy session. Participants from the second university outpatient clinic and a family mental health clinic complete a digital version. At baseline, participants are presented with the CORE-OM and the Outcome Questionnaire (OQ-45). At each follow-up point, they are presented with the CORE-OM plus mental health service evaluation items. In the student and community samples, data is collected at two time points (i.e. baseline and retest). At baseline, participants are presented with the CORE-OM and OQ-45. After two weeks (i.e. retest) participants are presented with the CORE-OM. The application modality in the non-clinical samples is mixed: students and general community participants complete paper or digital versions of the questionnaire in the classroom or community, respectively. RECRUITMENT: The clinical sample is recruited at two university outpatient clinics and a family mental health clinic of Santiago. The student sample is recruited in classrooms. The general community sample is recruited using a convenienc