BACKGROUND: Although measures of psychopathology are designed for use in clinical populations, their meaning derives from comparison with normal populations. AIMS: To compare the distribution of scores on the Clinical Outcomes in Routine Evaluation-Outcome Measure (CORE-OM) from a general population sample with the distribution in an aggregated clinical sample to derive recommended cut-off points for determining clinical significance. METHOD: The CORE-OM general population sample was based on a weighted subsample of participants in the psychiatric morbidity follow-up survey who completed valid CORE-OM forms following their interview (effective n=535). RESULTS: Comparison of the CORE-OM general population sample with a clinical sample aggregated from previous studies (n=10761) yielded a cut-off score of 9.9 on the 0-40 scale of the CORE-OM. The CORE-OM was highly correlated (r=0.77) with the Clinical Interview Schedule-Revised, supporting convergent validity. CONCLUSIONS: We recommend rounding the CORE-OM cut-off score to 10. However, cut-off scores must be used thoughtfully and adjusted to fit context and purpose.
BACKGROUND: Although measures of psychopathology are designed for use in clinical populations, their meaning derives from comparison with normal populations. AIMS: To compare the distribution of scores on the Clinical Outcomes in Routine Evaluation-Outcome Measure (CORE-OM) from a general population sample with the distribution in an aggregated clinical sample to derive recommended cut-off points for determining clinical significance. METHOD: The CORE-OM general population sample was based on a weighted subsample of participants in the psychiatric morbidity follow-up survey who completed valid CORE-OM forms following their interview (effective n=535). RESULTS: Comparison of the CORE-OM general population sample with a clinical sample aggregated from previous studies (n=10761) yielded a cut-off score of 9.9 on the 0-40 scale of the CORE-OM. The CORE-OM was highly correlated (r=0.77) with the Clinical Interview Schedule-Revised, supporting convergent validity. CONCLUSIONS: We recommend rounding the CORE-OM cut-off score to 10. However, cut-off scores must be used thoughtfully and adjusted to fit context and purpose.
Authors: Fabia Cientanni; Kevin Power; Christopher Wright; Fabio Sani; Diane Reilly; Marie-Louise Blake; Kerry Hustings; David Morgan; Stella Clark Journal: Internet Interv Date: 2019-04-27
Authors: Aileen O'Reilly; Nicholas Peiper; Lynsey O'Keeffe; Robert Illback; Richard Clayton Journal: Int J Methods Psychiatr Res Date: 2016-01-12 Impact factor: 4.035