Lowering the Floor on Trail Making Test Part B: Psychometric Evidence for a New Scoring Metric
Lowering the Floor on Trail Making Test Part B: Psychometric Evidence for a New Scoring Metric
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DOI：
10.1093/arclin/acv040
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发表时间：
2015-11-01
影响因子：
2.6
通讯作者：
Deoni, Sean C. L.
中科院分区：
文献类型：
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作者：
Correia, Stephen;Ahern, David C.;Deoni, Sean C. L.
连线测验部分B（TMT-B）作为执行功能的测量方法广泛用于临床和研究环境。标准给药允许最大时间评分（即，地板得分）300秒。这种做法可能掩盖了无法完成任务的认知受损个体的表现差异。例如，几乎完成的表演与只有几个动作的表演获得相同的300-s分数。这种性能差异可能在研究和临床环境中具有实用性。为了解决这个问题，我们提出了一个新的TMT-B效率指标，旨在捕获临床相关的性能变异低于标准管理层。我们的衡量标准考虑了时间、正确的动作以及委员会和遗漏的错误。我们证明该指标具有并行有效性，允许对低于测试下限的性能进行统计分析，并捕获替代方法错过的临床相关性能变异性。
The Trail Making Test Part B (TMT-B) is widely used in clinical and research settings as a measure of executive function. Standard administration allows a maximal time score (i.e., floor score) of 300 s. This practice potentially masks performance variability among cognitively impaired individuals who cannot complete the task. For example, performances that are nearly complete receive the same 300-s score as a performance of only a few moves. Such performance differences may have utility in research and clinical settings. To address this, we propose a new TMT-B efficiency metric designed to capture clinically relevant performance variability below the standard administration floor. Our metric takes into account time, correct moves, and errors of commission and omission. We demonstrate that the metric has concurrent validity, permits statistical analysis of performances that fall below the test floor, and captures clinically relevant performance variability missed by alternative methods.