Abstract

Objective

This project was designed to cross-validate existing performance validity cutoffs embedded within measures of verbal fluency (FAS and animals) and develop new ones for the Emotion Word Fluency Test (EWFT), a novel measure of category fluency.

Method

The classification accuracy of the verbal fluency tests was examined in two samples (70 cognitively healthy university students and 52 clinical patients) against psychometrically defined criterion measures.

Results

A demographically adjusted T-score of ≤31 on the FAS was specific (.88–.97) to noncredible responding in both samples. Animals T ≤ 29 achieved high specificity (.90–.93) among students at .27–.38 sensitivity. A more conservative cutoff (T ≤ 27) was needed in the patient sample for a similar combination of sensitivity (.24–.45) and specificity (.87–.93). An EWFT raw score ≤5 was highly specific (.94–.97) but insensitive (.10–.18) to invalid performance. Failing multiple cutoffs improved specificity (.90–1.00) at variable sensitivity (.19–.45).

Conclusions

Results help resolve the inconsistency in previous reports, and confirm the overall utility of existing verbal fluency tests as embedded validity indicators. Multivariate models of performance validity assessment are superior to single indicators. The clinical utility and limitations of the EWFT as a novel measure are discussed.

中文翻译：

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情感词流利度测试作为嵌入式性能效度指标——单独和多元效度组合

摘要

客观的

该项目旨在交叉验证嵌入在语言流畅度（FAS 和动物）测量中的现有性能有效性截止值，并为情感词流畅度测试（EWFT）开发新的，这是一种新的类别流畅度测量。

方法

根据心理测量学定义的标准测量，在两个样本（70 名认知健康的大学生和 52 名临床患者）中检查了语言流利度测试的分类准确性。

结果

FAS 上 ≤31 的人口统计调整T分数对两个样本中的不可信响应具有特异性 (.88–.97)。动物 T ≤ 29 在学生中以 0.27-.38 的敏感性达到高特异性 (.90-.93)。在患者样本中需要一个更保守的截止值 (T ≤ 27)，以获得相似的敏感性 (.24–.45) 和特异性 (.87–.93) 组合。EWFT 原始分数≤5 具有高度特异性 (.94–.97)，但对无效性能不敏感 (.10–.18)。多个临界值失败提高了特异性（0.90-1.00）在可变敏感性（0.19-.45）。

结论

结果有助于解决以前报告中的不一致问题，并确认现有语言流利度测试作为嵌入式有效性指标的整体效用。绩效有效性评估的多变量模型优于单一指标。讨论了 EWFT 作为一种新措施的临床效用和局限性。