Ratcliff R, McKoon G, Tindall M
Department of Psychology, Northwestern University, Evanston, Illinois 60208.
J Exp Psychol Learn Mem Cogn. 1994 Jul;20(4):763-85. doi: 10.1037//0278-7393.20.4.763.
The experiments presented in this article examined the slope of the zeta-ROC (receiver-operating characteristic) function for recognition memory. The slope was examined as a function of strength and the variables study time, list length, word frequency, and category membership. For normal distributions of familiarity, the slope of the zeta-ROC is the ratio of the new-item to old-item standard deviations. R. Ratcliff, C.-F. Sheu, and S. D. Gronlund (1992) found that the slope was constant within standard error as a function of strength of encoding, which is inconsistent with the predictions of the global memory models. The results presented here extend this finding: The slope was constant as a function of strength of encoding, list length, and the number of related items from a category in the study list. Word frequency did affect the slope, but within a frequency class the slope was constant as a function of strength. The implications of these data for the global memory models, the attention likelihood model, and variants of these models are discussed.
本文所呈现的实验研究了用于识别记忆的zeta-ROC（接收者操作特征）函数的斜率。该斜率作为强度以及变量学习时间、列表长度、词频和类别归属的函数进行了研究。对于熟悉度的正态分布，zeta-ROC的斜率是新项目与旧项目标准差的比率。R. 拉特克利夫、C.-F. 薛和S. D. 格伦隆德（1992年）发现，作为编码强度的函数，斜率在标准误差范围内是恒定的，这与全局记忆模型的预测不一致。此处呈现的结果扩展了这一发现：作为编码强度、列表长度以及学习列表中来自某一类别相关项目数量的函数，斜率是恒定的。词频确实会影响斜率，但在一个频率类别内，斜率作为强度的函数是恒定的。讨论了这些数据对全局记忆模型、注意力似然模型以及这些模型变体的意义。
