Criticism of the Work Capability Assessment the "written" guidance contained in the 255-page instruction manual issued to all assessors: The foreword to the WCA Handbook states: On 22 July 2013, the DWP announced that all Atos WCA assessors would be retrained, as part of a "quality improvement plan" that followed "a DWP audit which identified an unacceptable reduction in the quality of written reports produced following assessments." In 2006, the New Labour government set out its plans for welfare reform: over the course of a decade, it expected the deployment of the WCA to shrink the number of people on out-of-work sickness benefits by one million,
Criticism of the Work Capability Assessment of policy from 2010 until 2015, declared: "We need to think again about how we assess work capability" because "capability assessors too often have a culture of disbelief about disability, especially mental illness". Parliament's Office of Science and Technology has analysed the WCA's performance; it found that "the number of fit-for-work decisions being overturned on appeal has led to questions about the reliability of the assessment process". Between 2011 and 2013, around 40% of claimants found 'fit for work' appealed to a tribunal and around 40% of those appeals were successful. A 2012 study of 28,000 tribunal hearings analysed the