9 September Case Updates Reliance on performance validity tests administered by psychiatrists 11. Report Writing, 10. Records Assessments and Site Visits, performance validity testing, symptom validity testing This is a very important judgment for psychiatrists and psychologists who employ validity testing when assessing litigants. There were two experts, both psychiatrists. One employed validity tests. The other did not and she professed no experience of their use. The psychiatrist who employed them was a registered user of the tests for the administration of which he had been trained and had paid for a licence. Brown v Morgan Sindall Construction and Infrastructure Ltd [2025] EWHC 2204 (KB)