clinical outcomes in routine evaluation core om

Clinical Outcomes in Routine Evaluation (CORE-OM)

Instructions:

This form has 34 statements about how you have been OVER THE LAST WEEK. Please read each statement and think how often you felt that way last week. Then tap the box which is closest to this.

Not at allOnly occasionallySometimesOftenMost or all the time
 I have felt terribly alone and isolated01234
I have felt tense, anxious or nervous01234
I have felt I have someone to turn to for support when needed43210
I have felt O.K. about myself43210
I have felt totally lacking in energy and enthusiasm01234
I have been physically violent to others01234
I have felt able to cope when things go wrong43210
I have been troubled by aches, pains or other physical problems01234
I have thought of hurting myself01234
Talking to people has felt too much for me01234
Tension and anxiety have prevented me doing important things01234
I have been happy with the things I have done43210
I have been disturbed by unwanted thoughts and feelings01234
I have felt like crying01234
I have felt panic or terror01234
I made plans to end my life01234
Not at allOnly occasionallySometimesOftenMost or all the time
 I have felt overwhelmed by my problems01234
I have had difficulty getting to sleep or staying asleep01234
I have felt warmth or affection for someone43210
My problems have been impossible to put to one side01234
I have been able to do most things I needed to43210
I have threatened or intimidated another person01234
I have felt despairing or hopeless01234
I have thought it would be better if I were dead01234
I have felt criticised by other people01234
I have thought I have no friends01234
I have felt unhappy01234
Unwanted images or memories have been distressing me01234
I have been irritable when with other people01234
I have thought I am to blame for my problems and difficulties01234
I have felt optimistic about my future43210
I have achieved the things I wanted to43210
I have felt humiliated or shamed by other people01234
I have hurt myself physically or taken dangerous risks with my health01234

Description

The CORE Outcome Measure (CORE-OM) was conceived as a self-report measure of psychological distress designed to be administered before and after therapy. The client is asked to respond to 34 questions about how they have been feeling over the last week, using a 5-point scale ranging from ‘not at all’ to ‘most or all of the time’. The 34 items of the measure cover four dimensions: – Subjective well-being – Problems/symptoms – Life functioning – Risk/harm The questionnaire is repeated after the last session of treatment; comparison of the pre-and post-therapy scores offers a measure of ‘outcome’ (i.e. whether or not the client’s level of distress has changed, and by how much).

Validity and Reliability

Since its development the CORE-OM has been validated with samples from the general population, NHS primary and secondary care, and in older adults. Clinical normative data came from 21 sites from England, predominately within the NHS. The clinical population comprising users waiting for or receiving a wide variety of psychological interventions in a wide variety of settings (total n = 890). This normative data is reported in the CORE SYSTEM USER MANUAL and is used to compute percentile ranks.

Interpretation

Higher total raw scores total (range 0-136) represent poorer overall functioning and scores are also presented as a the mean score (from 0 – 4) which represents the clients average answer. In addition, scores are presented as a percentile compared to a clinical normative sample, where a percentile of 50 represents the average psychological distress of someone seeking psychological intervention.
There are 4 subscales: –
  • Subjective well-being (items 4, 14, 17, 31) –
  • Problems/symptoms (items 2, 5, 8, 11, 13, 15, 18, 20, 23, 27, 28, 30) –
  • Life functioning (1, 3, 7, 12, 10, 19, 21, 25, 26, 29, 32, 33) –
  • Risk/harm (9, 6, 16, 22, 24, 34)

Developer

Evans C, Connell J, Barkham M, Margison F, McGrath G, Mellor-Clark J, Audin K. Towards a standardised brief outcome measure: psychometric properties and utility of the CORE-OM. Br J Psychiatry. 2002 Jan;180:51-60.

Number Of Questions

34

References

Evans C, Connell J, Barkham M, Margison F, McGrath G, Mellor-Clark J, Audin K. Towards a standardised brief outcome measure: psychometric properties and utility of the CORE-OM. Br J Psychiatry. 2002 Jan;180:51-60.

Cite this article

mohammad looti (2026). Clinical Outcomes in Routine Evaluation (CORE-OM). PSYCHOLOGICAL SCALES. Retrieved from https://scales.arabpsychology.com/s/clinical-outcomes-in-routine-evaluation-core-om/

mohammad looti. "Clinical Outcomes in Routine Evaluation (CORE-OM)." PSYCHOLOGICAL SCALES, 2 Apr. 2026, https://scales.arabpsychology.com/s/clinical-outcomes-in-routine-evaluation-core-om/.

mohammad looti. "Clinical Outcomes in Routine Evaluation (CORE-OM)." PSYCHOLOGICAL SCALES, 2026. https://scales.arabpsychology.com/s/clinical-outcomes-in-routine-evaluation-core-om/.

mohammad looti (2026) 'Clinical Outcomes in Routine Evaluation (CORE-OM)', PSYCHOLOGICAL SCALES. Available at: https://scales.arabpsychology.com/s/clinical-outcomes-in-routine-evaluation-core-om/.

[1] mohammad looti, "Clinical Outcomes in Routine Evaluation (CORE-OM)," PSYCHOLOGICAL SCALES, vol. X, no. Y, ص Z-Z, April, 2026.

mohammad looti. Clinical Outcomes in Routine Evaluation (CORE-OM). PSYCHOLOGICAL SCALES. 2026;vol(issue):pages.

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