Unequal-strength source zROC slopes reflect criteria placement and not (necessarily) memory processes.
Unequal-strength source zROC slopes reflect criteria placement and not (necessarily) memory processes.
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不等强度的源 zROC 斜率反映了标准放置，而不是（必然）内存过程。
DOI：
10.1037/a0032328
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
Macmillan,NeilA
中科院分区：
文献类型：
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作者：
Starns,JeffreyJ;Pazzaglia,AngelaM;Rotello,CarenM;Hautus,MichaelJ;Macmillan,NeilA
源记忆zROC斜率从1以下变化到1以上，这取决于哪个源获得最强的学习。这种效应归因于记忆过程，要么是阈值源回忆过程，要么是连续源证据可变性的变化。我们提出了两种可以产生斜率效应的决策机制，并通过3个实验对其进行了检验。证据混合帐户假设人们根据哪个来源更强来改变他们对项目和源证据的权重，而聚合标准帐户假设参与者更愿意对具有更高项目强度的测试探测做出高置信度的源响应。结果不能支持证据混合解释，因为即使项目证据不能提供来源判断的信息（即在包括来自两个来源的强和弱项目的测试中），斜率效应也会出现。相比之下，结果显示了对趋同标准说的强烈支持。这一解释不仅适应了不等强度斜率效应，而且还对未经研究的（新）项目进行了预测，这一预测得到了经验证实：当参与者对新项目更有信心时，他们会对新项目做出更高的置信度源反应。与基于源回忆或证据可变性的描述相比，聚合标准描述具有优势，因为后者描述不能预测新项目的识别和源置信度之间的关系。
Source memory zROC slopes change from below 1 to above 1 depending on which source gets the strongest learning. This effect has been attributed to memory processes, either in terms of a threshold source recollection process or changes in the variability of continuous source evidence. We propose 2 decision mechanisms that can produce the slope effect, and we test them in 3 experiments. The evidence mixing account assumes that people change how they weight item versus source evidence based on which source is stronger, and the converging criteria account assumes that participants become more willing to make high confidence source responses for test probes that have higher item strength. Results failed to support the evidence mixing account, in that the slope effect emerged even when item evidence was not informative for the source judgment (ie, in tests that included strong and weak items from both sources). In contrast, results showed strong support for the converging criteria account. This account not only accommodated the unequal-strength slope effect but also made a prediction for unstudied (new) items that was empirically confirmed: participants made more high confidence source responses for new items when they were more confident that the item was studied. The converging criteria account has an advantage over accounts based on source recollection or evidence variability, as the latter accounts do not predict the relationship between recognition and source confidence for new items.