Anal Methods. 2016 Jul 14;8(28):5553-5555. doi: 10.1039/c6ay90078j.
z-Scores were devised to provide a transparent but widely-applicable scoring system for participants in proficiency tests for analytical laboratories. The essential idea is to provide an appropriate scaling of the difference between a participant's result and the 'assigned value' for the concentration of the analyte. Interpretation of a z-score is straightforward but some aspects need careful attention to avoid misconception. Over time several related scores have been devised to cope with a diversified range of applications. The main types of score have recently been codified in ISO 13528 (2015).
z分数的设计目的是为分析实验室能力验证测试的参与者提供一个透明但广泛适用的评分系统。其基本思想是对参与者的结果与分析物浓度的“指定值”之间的差异进行适当的缩放。z分数的解释很简单，但有些方面需要仔细注意，以避免误解。随着时间的推移，人们设计了几个相关分数来应对各种各样的应用。最近，主要类型的分数已在ISO 13528（2015）中进行了编纂。
