This study evaluated symptom validity scales from the Neurobehavioral Symptom Inventory (NSI) and mild Brain Injury Atypical Symptom Scale (mBIAS) in a sample of 338 combat veterans. Classification statistics were computed using the Structured Inventory of Malingered Symptomatology (SIMS) as the validity criterion. Symptom distress was assessed with the Patient Health Questionnaire-9 and Posttraumatic Stress Disorder (PTSD) Checklist-5. At SIMS > 14, the NSI total score resulted in the highest area under the curve (AUC; .91), followed by Validity-10 (AUC = .88) and mBIAS (AUC = .67). At SIMS > 23, both NSI total and Validity-10 AUCs decreased to .88; in contrast, mBIAS AUC increased to .75. The NSI total score and Validity-10 were interpreted to reflect symptom magnification, whereas the mBIAS may reflect symptom fabrication. There was a subsample with elevated Patient Health Questionnaire-9 (PHQ-9) and PTSD Checklist-5 scores who were significantly distressed but not deemed invalid on the NSI; however, there appears to be an upper threshold on the NSI total score (>69) beyond which nobody produced an invalid score on the SIMS. A recommended approach is provided for using NSI-related validity measures. (PsycInfo Database Record (c) 2021 APA, all rights reserved).

中文翻译：

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退伍军人自我报告的神经行为症状：使用 mBIAS 症状有效性量表检查 NSI 和心理困扰的潜在影响。

本研究以 338 名退伍军人为样本，评估了神经行为症状量表 (NSI) 和轻度脑损伤非典型症状量表 (mBIAS) 的症状有效性量表。分类统计是使用欺诈症状结构化清单 (SIMS) 作为有效性标准来计算的。使用患者健康问卷 9 和创伤后应激障碍 (PTSD) 检查表 5 评估症状困扰。在 SIMS > 14 时，NSI 总分导致曲线下面积最高 (AUC; .91)，其次是 Validity-10 (AUC = .88) 和 mBIAS (AUC = .67)。在 SIMS > 23 时，NSI 总数和 Validity-10 AUC 均降至 0.88；相反，mBIAS AUC 增加到 0.75。NSI 总分和 Validity-10 被解释为反映症状放大，而 mBIAS 可能反映症状捏造。有一个患者健康问卷 9 (PHQ-9) 和 PTSD 检查表 5 分数升高的子样本，他们非常痛苦，但在 NSI 上未被视为无效；然而，NSI 总分似乎有一个上限（>69），超过该上限就没有人在 SIMS 上产生无效分数。提供了使用 NSI 相关有效性度量的推荐方法。（PsycInfo 数据库记录 (c) 2021 APA，保留所有权利）。