Spray J A
American College Testing Program, Iowa City, IA 52243, USA.
J Mot Behav. 1986 Jun;18(2):225-38. doi: 10.1080/00222895.1986.10735379.
When target accuracy is defined as the probability that an individual will respond to an accuracy task within a fixed distance around the target, then the composite error measures, E and AE, are shown to be fairly strong indicators of target accuracy in a relative sense. When AE and E are compared, AE is shown to be an even stronger accuracy indicator than E for most reasonable accuracy requirements. This, plus the fact that AE has certain desirable properties in ANOVA procedures, suggests that AE is a good, composite measure of target accuracy and should be analyzed first to determine if target accuracy differences exist. Subsequent analyses of bias and/or variability are then recommended.
当将目标精度定义为个体在目标周围固定距离内对精度任务做出响应的概率时，那么综合误差度量E和AE在相对意义上显示为目标精度的相当强的指标。当比较AE和E时，对于大多数合理的精度要求，AE显示为比E更强的精度指标。这一点，再加上AE在方差分析过程中具有某些理想特性这一事实，表明AE是目标精度的一个很好的综合度量，应该首先进行分析以确定是否存在目标精度差异。然后建议随后对偏差和/或变异性进行分析。
