Scale Overview
The Clinical Outcomes in Routine Evaluation – Outcome Measure (CORE-OM) was developed by Evans, C., Connell, J., Barkham, M., Margison, F., McGrath, G., Mellor-Clark, J., & Audin, K. (2002). It is designed to measure Psychological Distress. The scale is intended for use with Adults.
Scale Structure
This instrument consists of 34 items organized into 4 factors/subscales: Subjective well-being, Problems/symptoms, Life functioning, Risk/harm.
| Factor / Subscale |
Items |
N |
| Subjective well-being |
4,14,17,31 |
4 |
| Problems/symptoms |
2,5,8,11,13,15,18,20,23,27,28,30 |
12 |
| Life functioning |
1,3,7,10,12,19,21,25,26,29,32,33 |
12 |
| Risk/harm |
6,9,16,22,24,34 |
6 |
Response Format
Respondents rate each item using a custom response format.
Response anchors: 0 = Not at all, 1 = Only occasionally, 2 = Sometimes, 3 = Often, 4 = Most or all the time.
The scale includes 8 reverse-scored items to reduce acquiescence bias.
Scoring
Items are scored by subscale, with each subscale sum representing a distinct dimension.
Total scores range from 0 to 136. Interpretation guidelines:
- Total Score Range (Higher scores represent poorer overall functioning): 0 – 136
Administration
The scale is self-administered and typically takes approximately 5 minutes to complete. It can be administered individually or in group settings. No special training is required for administration.