Validation of the Clinical Outcomes in Routine Evaluation-Outcome Measure (CORE-OM) in Chile
The aim is to study the psychometric properties of the Spanish translation of the Clinical Outcomes in Routine Evaluation-Outcome Measure (CORE-OM), an instrument that measures psychological distress, in the Chilean population. To test internal consistency, test-retest stability, and discrimination, the CORE-OM is applied in three samples: a clinical sample (n=200) and two non-clinical samples (1. university students (n=400); and 2. general community (n=300)). Specific modalities of data collection are used for each sample. In the clinical sample, data is only collected at one time point. 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, the Outcome Questionnaire (OQ-45) and a set of sociodemographic and mental health service use items. After two weeks (i.e. retest) participants are presented with the CORE-OM plus an item about mental health service use in the last 30 days. Participants in the clinical sample complete the paper version of the questionnaire in the waiting room of the University Outpatient Clinic. 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. The digital version of the questionnaire is in surveygizmo™ and can be accessed by clicking a Uniform Resource Locator (URL) embedded in an email/message, or by scanning a Quick Response (QR) code with a smartphone. Student and community participants are contacted via email after 2 weeks to respond the online retest questionnaire. The clinical sample is recruited at a University Outpatient Clinic in the Metropolitan Area of Santiago, which provides services to patients of low to medium income. Patients are approached by research assistants in the waiting area, before or after their psychotherapy/psychiatry session. Patients meeting inclusion criteria, and willing to participate, fill out an informed consent before responding the questionnaire. Questionnaire completion and responses to risk items are reviewed within 24 hours. Treating psychiatrists/psychologists are contacted via email when their patients respond "often" or "most of the time" to items signaling self-harm and thoughts of suicide (i.e. items 9, 16, 24 and 34 of the CORE-OM or item 8 of the OQ-45). The student sample is recruited in the classrooms of Pontificia Universidad Católica de Chile. A member of the research team presents the study and invites students to participate. Students agreeing to participate fill out an informed consent form before completing paper/digital versions of the questionnaire. Any student responding "often" or "most of the time" to items signaling self-harm and thoughts of suicide in the CORE-OM/OQ-45 receives an email from the Responsible Investigator with information about the University´s counseling services within 24 hours. The general community sample is recruited using a convenience sampling method (e.g. contacts of research team). As in the other samples, participants sign an informed consent before answering the questionnaire. Since the non-clinical samples serve to test stability, students/general community are asked to provide a valid email address in order to send them an email invitation after two weeks to complete the CORE-OM.
Start: January 2019
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