a Department of Mental Health Services , VA Ann Arbor Healthcare System , MI , USA .
Clin Neuropsychol. 2013;27(8):1362-72. doi: 10.1080/13854046.2013.845248. Epub 2013 Oct 7.
Reliable Digit Span (RDS) is a measure of effort derived from the Digit Span subtest of the Wechsler intelligence scales. Some authors have suggested that the age-corrected scaled score provides a more accurate measure of effort than RDS. This study examined the relative diagnostic accuracy of the traditional RDS, an extended RDS including the new Sequencing task from the Wechsler Adult Intelligence Scale-IV, and the age-corrected scaled score, relative to performance validity as determined by the Test of Memory Malingering. Data were collected from 138 Veterans seen in a traumatic brain injury clinic. The traditional RDS (≤ 7), revised RDS (≤ 11), and Digit Span age-corrected scaled score ( ≤ 6) had respective sensitivities of 39%, 39%, and 33%, and respective specificities of 82%, 89%, and 91%. Of these indices, revised RDS and the Digit Span age-corrected scaled score provide the most accurate measure of performance validity among the three measures.
可靠数字跨度（Reliable Digit Span，RDS）是一种源自韦氏智力测验数字跨度分量表的努力程度测量指标。一些作者认为，年龄校正的量表分数比 RDS 提供了更准确的努力程度衡量标准。本研究比较了传统的 RDS、包含韦氏成人智力测验第四版中新序列任务的扩展 RDS 以及年龄校正量表分数这三种方法，以测试记忆伪装测验确定的表现效度，来评估它们的相对诊断准确性。研究数据来自创伤性脑损伤诊所就诊的 138 名退伍军人。传统的 RDS（≤7）、修订后的 RDS（≤11）和数字跨度年龄校正量表分数（≤6）的灵敏度分别为 39%、39%和 33%，特异性分别为 82%、89%和 91%。在这三个指标中，修订后的 RDS 和数字跨度年龄校正量表分数提供了最准确的表现效度衡量标准。
