In this paper measures of interrater absolute agreement for quantitative measurements based on the standard deviation are proposed. Such indices allow (i) to overcome the limits affecting the intraclass correlation index; (ii) to measure the interrater agreement on single targets. Estimators of the proposed measures are introduced and their sampling properties are investigated for normal and non-normal data. Simulated data are employed to demonstrate the accuracy and practical utility of the new indices for assessing agreement. Finally, an application to assess the consistency of measurements performed by radiologists evaluating tumor size of lung cancer is presented.

本文提出了基于标准差的定量测量的参与者间绝对一致性的测量方法。这些指数允许 (i) 克服影响类内相关指数的限制；(ii) 衡量单个目标的参与者间一致性。引入了所提出的测量的估计量，并研究了它们对于正态和非正态数据的采样特性。采用模拟数据来证明新指标评估一致性的准确性和实用性。最后，提出了一种用于评估放射科医生评估肺癌肿瘤大小的测量一致性的应用程序。