本研究采用10题大五人格量表的中文版、问题性手机使用量表、适用于青少年的时间管理倾向量表和自我控制量表调查了北京市两所中学初一、初二、高一、高二共1200名青少年尽责性在影响问题性手机使用过程中的作用机制，力求探讨时间监控观和自我控制能力是如何以及在什么程度上对这一过程产生影响。研究结果显示，尽责性能够通过时间监控观和自我控制的链式中介作用，反向预测问题性手机使用行为的产生；同时尽责性也能够通过直接影响自我控制能力进而影响问题性手机使用行为的产生，但这一条影响的路径相比前者来讲显得微不足道。综合研究结果我们可以得出如下结论，高尽责性的个体，在较强的时间监控观和自我控制能力的推动下能够在一定程度上控制问题性手机使用行为的产生。

This research collected self-reported data from 1200 teenagers in one high school and one middle school in Beijing, which included the grade of junior one and two together with senior one and two. We measured the level of conscientiousness by the Chinese version of the Ten Items Personality Inventory(TIPI-C). The short version of Mobile Phone Problematic Use Scale(MPPUS) was used to gather the current situation about mobile phone use. Time monitoring was assessed by Adolescence Time Management Disposition Scale(ATMD). Adolescence Effortful Control Scale from Early Adolescent Temperament Questionnaire-Revised was used to assessed the level of Self-control. The major problem we focused on was how and to what extent time monitoring and self-control can influence this process. The results show that conscientiousness can be used to predict the use of mobile phone through the chain mediator effect of time monitoring and self-control. What’s more, conscientiousness can also influence the production of problematic mobile phone use through self-control directly, but the path of this influence is insignificant compared with the former. What comes to the result is as the level of conscientiousness increasing, the stronger perception of time monitoring and higher ability of self-control can lead to a certain reduction of problematic mobile phone use.