When specificity was set to.90, sensitivity was higher for M-FAST and the CBS performed the best (sensitivity =.42).
AUC effect sizes were moderate across the WMT-classified groups (.650–.676) and large across M-FAST-classified groups (.816–.854). Results: Group differences were significant with moderate effect sizes for all cognitive bias scales between the WMT-classified groups (d =.52–.55), and large effect sizes between the M-FAST-classified groups (d = 1.27–1.45). Area under the curve (AUC), sensitivity, specificity, and hit rate across various scale point-estimates were used to evaluate classification accuracy of the CBS and CB-SOS scales. Independent samples t-tests compared mean differences on cognitive bias scales between valid and invalid groups on the M-FAST and WMT. Method: 371 Veterans (88.1% male, 66.1% White) completed a battery including the Miller Forensic Assessment of Symptoms Test (M-FAST), the Word Memory Test (WMT), and the PAI.
Objective: The present study evaluated the function of four cognitive, symptom validity scales on the Personality Assessment Inventory (PAI), the Cognitive Bias Scale (CBS) and the Cognitive Bias Scale of Scales (CB-SOS) 1, 2, and 3 in a sample of Veterans who volunteered for a study of neurocognitive functioning.
