Abstract: The purpose of this paper is to investigate whether there are two criteria in reasoner′s mind when they are trying to solve syllogistic problems. The results supports the viewpoint of Dual Structure Model of Item and Knowledge, namely, too criteria of form and content exist when the reasoners make a conclusion to the deduction.

Key words: syllogism, mental-logic, mental model, dual structure model of item and knowledge

摘要： 本文试图探求人们在进行三段论推理加工时是否存在形式和内容双重标准。由既掌握形式逻辑推理规则又知道构成推理题的两个前提是否正确的被试所进行的推理结果支持下述观点：人们在进行三段论推理过程中,在判定推理结论的正误时,存在着与试题结构相应的两种内在的判定标准,即“形式标准”和“内容标准”。

关键词: 三段论推理, 心理逻辑, 心理模型, 知识和试题双重结构模型