短视频问题性使用指个体因为长时间和高强度使用短视频，导致其在生理、心理和行为等方面受到消极影响，但尚未达到精神疾病的临床诊断标准的使用行为。大学生是短视频重要的用户群体之一，研究发现短视频问题性使用对大学生的心理健康、社交行为和学业表现等方面产生负面影响，因此探究短视频问题性使用的内涵和影响因素十分有必要。已有的短视频问题性使用的研究存在一定的不足，包括对短视频问题性使用的内涵认识得不充分，缺乏有效的短视频问题性使用的测量工具，对短视频问题性使用的影响因素的探索有待进一步细化等。针对上述不足，本研究以探索大学生的短视频问题性使用行为内涵及结构为目的，编制了《大学生短视频问题性使用量表》，并结合媒介依赖理论和社会认知理论，探究个体因素（压力感知）、平台因素（个性化推荐算法）和社会因素（社会规范）对大学生短视频问题性使用的共同影响。研究包括大学生短视频问题性使用量表的编制与评价和大学生短视频问题性使用的影响因素探索两个部分：在大学生短视频问题性使用的内涵探索与量表编制方面，研究首先通过半开放式问卷调查，收集并整理出短视频问题性使用的典型表现，并基于质性分析的结果，对测量短视频问题性使用的已有题目进行补充和修订。研究进一步通过探索性因素分析、验证性因素分析，探索和验证了大学生短视频问题性使用的结构，最终形成《大学生短视频问题性使用量表》。量表包括18个题目，由短视频沉迷、短视频依赖、强迫性使用和下意识使用4个维度构成。量表具有较高的信效度，总量表的Cronbach’s α系数为0.92，各维度的Cronbach’s α系数分别为0.80（短视频沉迷）、0.72（强迫性使用）、0.69（短视频依赖）和0.84（下意识使用）；量表的验证性因素分析结果拟合较好，各维度分数之间（rs > 0.60）、量表总分与效标之间（rs > 0.50）存在显著正相关。在大学生短视频问题性使用的影响因素探索方面，研究以研究一编制的《大学生短视频问题性使用量表》为测量工具，结合媒介依赖理论和社会认知理论，将影响因素具体分为个体（压力感知）、平台（个性化推荐算法）和社会（社会规范）三个方面，来深入探究短视频问题性使用与影响因素之间的关系。研究发现，压力感知能够正向预测大学生短视频问题性使用水平；在这一影响关系中，个性化推荐算法和社会规范分别起到调节的作用。具体来说，大学生短视频问题性使用水平会随着社会规范水平的提升而有所升高，相较于低社会规范水平，在高水平下，压力感知对短视频问题性使用的影响有所减弱。大学生短视频问题性使用水平也随个性化推荐算法水平的提高而有所升高，相较于低个性化推荐算法水平，在高水平下，压力感知对短视频问题性使用的影响减弱。

Problematic use of short videos refers to the use of short videos for a long time and high intensity, resulting in a negative impact on the physical, psychological and behavioral aspects of the individual, but has not yet met the clinical diagnostic criteria for mental illness. undergraduates are one of the important user groups of short videos, and the research finds that the problematic use of short videos has a negative impact on the mental health, social behavior and academic performance of undergraduates, so it is necessary to explore the connotation and influencing factors of the problematic use of short video. There are some shortcomings in the existing research on problematic use of short video, including insufficient understanding of the connotation of problematic use of short video, lack of effective measuring tools for problematic use of short video, and exploration of influencing factors of problematic use of short videos needs to be further refined. In view of the above deficiencies, this study aims to explore the connotation and structure of problematic use behavior of short videos for undergraduates, and compiled the Problematic Use Scale of Short videos for undergraduates. Combining with the Media Dependency Theory and the Interaction of Person-Affect-Cognition-Execution Model, the present study also explored the influence of individual factors (stress perception), platform factors (personalized recommendation algorithms) and social factors (social norms) on the problematic use of short videos among undergraduates. The research included two parts. One is the development and validation of the Problematic Use Scale for Undergraduates, and the other one is the exploration of the influencing factors of problematic use of short videos for undergraduates.In terms of the connotation exploration and scale compilation of problematic use of short videos by undergraduates, the research first collected and sorted out the typical manifestations of problematic use of short videos through a semi–open questionnaire survey, and supplemented and revised the existing problems of measuring problematic use of short videos based on the results of qualitative analysis. Through exploratory factor analysis and confirmatory factor analysis, the paper further explored and verified the structure of problematic use of short videos for undergraduates, and finally formed the Problematic Use Scale of short videos for undergraduates. The scale includes 18 questions and consists of 4 dimensions: short videos addiction, short videos dependence, compulsive use and unconscious use. The Cronbach's α coefficient of the total volume table was 0.92, and the Cronbach's α coefficients of each dimension were 0.80 (short videos addiction), 0.72 (compulsive use), 0.69 (short videos dependence) and 0.84 (unconscious use), respectively. The results of confirmatory factor analysis of the scale were well fitted, and there was significant positive correlation between the scores of each dimension (rs > 0.60) and the total score of the scale and the criterion (rs > 0.50).In terms of the exploration of influencing factors of problematic use of short videos by undergraduates, this study takes the Problematic Use Scale of Short videos by undergraduates compiled by Study 1 as a measuring tool, combines the Media Dependency Theory and the Social cognitive theory, and divides the influencing factors into three aspects: individual (pressure perception), platform (personalized recommendation algorithm) and environment (social norms). To explore the relationship between problematic use of short videos and influencing factors. The results show that pressure perception can positively predict the level of problematic use of short video. In this relationship, personalized recommendation algorithm and social norms play a regulating role respectively. Specifically, the problematic use level of undergraduates' short videos will increase with the improvement of social norms. Compared with the low level of social norms, the influence of pressure perception on the problematic use of short videos will be weakened at the high level. The problematic use level of undergraduates' short videos also increases with the improvement of the level of personalized recommendation algorithm. Compared with the level of low personalized recommendation algorithm, the influence of pressure perception on the problematic use of short videos is weakened at high level.