Three-Component Psychological System:A New Theory of Transitive Inferece
三成分心理系统：诠释传递性推理的新理论

Since Wright presented the three-component psychological system in the field of transitivity inference, the model has come to be one of the focuses in the transitivity inference researches. This article chiefly introduces its theoretical background, basic hypotheses and structure. The three-component psychological system is based on the classic Piagetian theory and information processing theory. This represents three main processing mechanism (the transitive-switch mechanism, the order-extraction mechanism and the coordinative response mechanism ) in the transitive inference, and each processing mechanism has different strategy. Furthermore, future research orientation is probed in the article.