Karlsson Linea, Juslin Peter, Olsson Henrik
Umeå University, Umeå, Sweden.
Psychon Bull Rev. 2007 Dec;14(6):1140-6. doi: 10.3758/bf03193103.
The majority of previous studies on multiple-cue judgment with continuous cues have involved comparisons between judgments and multiple linear regression models that integrated cues into a judgment. The authors present an experiment indicating that in a judgment task with additive combination of multiple continuous cues, people indeed displayed abstract knowledge of the cue criterion relations that was mentally integrated into a judgment, but in a task with multiplicative combination of continuous cues, people instead relied on retrieval of memory traces of similar judgment cases (exemplars). These results suggest that people may adopt qualitatively distinct forms of knowledge, depending on the structure of a multiple-cue judgment task. The authors discuss implications for theories of multiple-cue judgment.
以往大多数关于连续线索多重线索判断的研究都涉及到将判断与将线索整合到判断中的多重线性回归模型进行比较。作者进行了一项实验，结果表明，在一个多重连续线索进行加法组合的判断任务中，人们确实表现出了线索标准关系的抽象知识，这种知识在心理上被整合到了一个判断中，但在一个连续线索进行乘法组合的任务中，人们反而依赖于对类似判断案例（范例）记忆痕迹的检索。这些结果表明，根据多重线索判断任务的结构，人们可能会采用性质不同的知识形式。作者讨论了这些结果对多重线索判断理论的启示。
