Psychometric properties of the Spanish version of the Clinical Outcomes in Routine Evaluation Outcome Measure (CORE-OM) in Chile

Abstract

Objective

To examine the psychometric properties of the Spanish version of the 34-item Clinical Outcomes in Routine Evaluation—Outcome Measure questionnaire (CORE-OM).

Method

Psychometric exploration was conducted in two samples: non-clinical (n = 706) and clinical (n = 420) participants. The non-clinical sample comprised a subgroup of community members (n = 308) and students (n = 398). The clinical sample consisted of self-reported patients (n = 209) and outpatients (n = 211). The analysis included both internal and test-retest reliability, convergent validity, and principal component analysis. A reliable change index and clinical cut-off scores were established for assessing clinically significant change.

Results

The Spanish CORE-OM demonstrated good internal consistency and test-retest reliability, along with satisfactory convergent validity against the 45-item Outcome Questionnaire (OQ-45.2). There were strong differentiations between the clinical and non-clinical samples and the four sample subsets. The outpatient group reported the highest scores, while the community group exhibited the lowest scores. There were no marked gender effects. All observed patterns aligned closely with the established Spanish referential data.

Conclusion

Our findings provide support for the utilization of the Spanish CORE-OM as a measure for tracking psychotherapeutic progress in the context of Chile.

Keywords:

• CORE-OM
• outcome measures
• validation
• psychometric properties
• Transcultural Psychology

Acknowledgements

The authors express their gratitude to all participants who generously devoted their time to completing the questionnaire, as well as to the Society for Psychotherapy Research for their invaluable support. Special thanks are extended to Sofía Ramirez for leading the fieldwork in the three psychotherapeutic centers. Appreciation is also extended to the authorities of these centers—Paz Egaña, Vanetza Quezada, and Blanca Peñaloza—for their support. Rodolfo Pino is acknowledged for his expertise in conducting the exploratory statistical analysis. Furthermore, sincere appreciation is extended to Nina Immel and Elyna Gómez-Barris for their insightful contributions to the discussion of preliminary findings.

Disclosure Statement

No potential conflict of interest was reported by the author(s).

Supplemental data

Supplemental data for this article can be accessed online at https://doi.org/10.1080/10503307.2024.2356195

Additional information

Funding

This project was made possible through funding from the Small Research Grants Program of the Society for Psychotherpy Research (SPR).