Performance and Symptom Validity Assessment in Patients with Apathy and Cognitive Impairment.
Brechje Dandachi-FitzgeraldAnnelien A DuitsAlbert F G LeentjensFrans R J VerheyRudolf W H M PondsPublished in: Journal of the International Neuropsychological Society : JINS (2019)
In patients with cognitive impairment or apathy, failing one validity test is not uncommon. Validity tests are differentially sensitive to cognitive impairment and apathy. However, the rule that at least two validity tests should be failed to identify non-credibility seemed to ensure a high percentage of correct classification of credibility.