Trueblood W, Schmidt M
J Clin Exp Neuropsychol. 1993 Jul;15(4):578-90. doi: 10.1080/01688639308402580.
Eight malingerers (MPs) were identified via significantly below-chance symptom validity testing (SVT) within a sample of 106 consecutive admissions for neuropsychological evaluation. The resulting incidence of 7.5% is seen as a minimal estimate of malingering within the sample. Eight individuals who "passed" SVT but produced neuropsychological data of questionable validity were also identified (QVs). MPs and QVs were compared with matched controls on 14 measures that have been previously suggested as indicators of invalid neuropsychological data. MPs and QVs differed from controls on General Neuropsychological Deficit Scale, Fingertip Number Writing, and Digit Span. CVLT Recognition, Finger Agnosia, and Speech Perception differed for one of the target groups versus controls and had trends toward significance in the other group. However, many of the previously suggested invalidity signs were rare or absent. Reliance on these measures could result in overconfidence in the validity of neuropsychological data.
在连续106例接受神经心理学评估的样本中，通过显著低于随机水平的症状效度测试（SVT）识别出8名诈病者（MPs）。7.5%的发生率被视为该样本中诈病的最低估计值。还识别出8名“通过”SVT但产生了效度存疑的神经心理学数据的个体（QVs）。将MPs和QVs与匹配的对照组在14项先前被认为是无效神经心理学数据指标的测量上进行比较。MPs和QVs在一般神经心理学缺陷量表、指尖数字书写和数字广度方面与对照组不同。线索回忆测验识别、手指失认症和言语感知在其中一个目标组与对照组之间存在差异，而在另一组中有显著趋势。然而，许多先前提出的无效迹象很少出现或不存在。依赖这些测量可能会导致对神经心理学数据效度的过度自信。
