[目的/意义]通过实验研究考察不良行为改变过程中信息行为作用机理及中介变量，为有针对性地提出并验证不良健康行为干预方案，更好地进行个体行为干预从而促进健康管理水平提供依据。[方法/过程]基于跨理论模型和相关测量工具，将受试者进行行为阶段划分。结合不同阶段信息行为特点，对不同阶段的受试者信息行为进行干预并考察中介变量。[结果/结论]三个组中，信息行为干预组的改变最为显著，优于自然组和单纯的跨理论模型干预，证明信息行为干预策略和方案是有效的，信息行为干预对促进不良健康行为的改变有积极影响。建议未来在不良健康行为干预中强化信息行为变量，提高行为不良者的信息水平，促进不良行为的改变。
[Purpose/significance] This paper uses the experiment research to reveal the influence of information behavior and self-efficacy on a transformation course of undergraduates' unhealthy behavior, pertinently suggests and verifies the intervention proposals for unhealthy behavior, so as to intervene in individuals' behavior more effectively and raise the level of health control. [Method/process] This paper mainly adopted the experimental method to divide the subjects' behavior phases based on the trans-theoretical model and related measurement vehicles. It combined the characteristics of information behavior in different phases to intervene in the information behavior of subjects in different phases and appraise the effect. [Result/conclusion] Among three groups, the intervention group of information behavior witnessed the most significant transformation which outperformed the natural group and the simple trans-theoretical model intervention. It proves the effectiveness of the policy and proposal of information behavior intervention and shows the positive influence of information behavior intervention on the transformation of unhealthy behavior. It is recommended to intensify information behavior variables in intervention in unhealthy behavior in future, improve the information level of bad actors to promote the transformation of bad behavior.
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