Newell K M
a Institute for Child Behavior and Development , University of Illinois at Urbana-Champaign.
J Mot Behav. 1976 Jun;8(2):139-42. doi: 10.1080/00222895.1976.10735064.
It is argued on statistical and conceptual grounds that absolute error can be a meaningful measure of performance. When approximately half of each group performs consistently on either side of the criterion, groups can have equal algebraic error and variable error means, leaving absolute error as the only dependent variable to discriminate between the groups. Additionally, absolute error is invariably the dependent variable subjects are asked to minimize in the experimental situation. If researchers persist in measuring motor performance through error scores, judicious use of absolute error is appropriate. Requests for reprints should be sent to K.M. Newell, Institute for Child Behavior and Development, University of Illinois, Champaign, IL 61820.
基于统计学和概念性依据，有人认为绝对误差可以成为衡量表现的一个有意义的指标。当每组中大约一半的人在标准的两侧持续表现一致时，各小组可能具有相等的代数误差和可变误差均值，这样绝对误差就成为区分各小组的唯一因变量。此外，在实验情境中，绝对误差始终是要求受试者尽量减小的因变量。如果研究人员坚持通过误差分数来衡量运动表现，那么明智地使用绝对误差是合适的。如需索取重印本，请寄至伊利诺伊大学儿童行为与发展研究所的K.M. 纽厄尔，地址为伊利诺伊州厄巴纳市61820。
