Research and analysis

Work Capability Assessment: evidence based review

Evidence based review examining the performance of the Work Capability Assessment and an alternative assessment for ESA claims.



The evidence based review of the Work Capability Assessment (WCA) is a study to examine the performance of the assessment criteria for Employment and Support Allowance and alternative criteria developed by specialist disability representative groups. The study arose from a recommendation in Professor Harrington’s second independent review of the WCA. It looks at the validity and reliability of the assessment criteria.

Published 12 December 2013
Last updated 17 July 2014 + show all updates
  1. Replaced PDF. A transposition of figures in Table 5.3 was found. This table has been revised in chapter 5 on the correspondence between expert panel opinion and assessment outcomes. Text that describes Negative and Positive predictive values in this chapter has also been amended.
  2. First published.