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Information about the CORE-10
Although the original launch of the CORE instruments included the two 18 item Short Forms (SF/A and SF/B), it became clear that a major shift was occurring in expectations of the length of measures and it was also clear that in routine practice many practitioners found keeping track of which short form to use, week on week, complicated and so a shorter short form was lobbied for by practitioners and resulted in the CORE-10.
The CORE-10 has no wellbeing items, six problem domain items, three functioning domain items and one risk item; given the small numbers of items, no domain scores are used from the CORE-10. It can be prorated if only one item is omitted but clearly prorated scores should be interpreted cautiously as omission of any item from a short but broad coverage measure can affect the relationship of a prorated score to a score based on all the items. However, the CORE-10 has proved a very popular measure for sessional use in the UK.
The key reference that introduced the CORE-10 with some UK psychometric exploration is:
Barkham, M., Bewick, B., Mullin, T., Gilbody, S., Connell, J., Cahill, J., Mellor-Clark, J., Richards, D., Unsworth, G. & Evans, C. (2012). The CORE-10: A short measure of psychological distress for routine use in the psychological therapies. Counselling and Psychotherapy Research, 1–11. http://doi.org/10.1080/14733145.2012.729069.
Download the English language PDF of the CORE-10 using link below, for other languages, go to Translations page.