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.

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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.