Clinical myths of forensic neuropsychology.
Clinical myths and lore are unfounded beliefs that still influence practice decisions. I examine the validity of six beliefs commonly encountered in forensic neuropsychology practice: the admissibility of test batteries; avoidance of practice effects; forewarning insures good effort; average deficits in bright persons; 15% chronic impairment in mild brain injury; and examiner bias causing malingering. I show these beliefs are invalid because of material misunderstandings of case law and literature, falsification by empirical findings, and lack of authoritative sources. The benefits, costs, and persistence of clinical myths are discussed.
Greiffenstein
Manfred F
MF
Psychological Systems, Inc., Royal Oak, MI 48073, USA. mfgreiff@comcast.net
D003072:Cognition Disorders / Q000175:diagnosis* / Q000523:psychology; D019317:Evidence-Based Medicine; D005495:Folklore; D005554:Forensic Medicine; D005555:Forensic Psychiatry; D006801:Humans; D007360:Intelligence; D007361:Intelligence Tests; D008306:Malingering / Q000175:diagnosis* / Q000523:psychology; D009483:Neuropsychological Tests / Q000592:standards*; D009484:Neuropsychology / Q000379:methods / Q000592:standards*; D015588:Observer Variation; D015203:Reproducibility of Results