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本研究以媒体接触程度为自变量,以公众关注议题的多少为因变量,并在分析过程中引入了性别、年龄、教育程度三个人口学指标作为控制变量,采用时间序列分析、T检验及多元回归等多种统计分析方法,检验媒体接触程度对公众关注议题数量的影响。研究发现,公众对与个人生活密切相关的议题,媒体接触程度越高,关注的持续时间越短;相反,对于城市公共领域的问题,媒体接触的程度越高,持续关注的时间越长;媒体接触程度高的群体在不同时段关注议题的数量相对稳定,媒体接触程度低的群体在不同时段关注议题数量有显著性差异。男性和女性关注议题的数量上没有显著性差异,不同年龄和不同文化程度的群体,关注议题的数量具有显著性差异。
In this study, the degree of media exposure as an independent variable, the number of public concerns as the dependent variable, and in the analysis of the introduction of gender, age, educational level three demographic indicators as a control variable, using time series analysis, T test and Multiple regression and other statistical analysis methods to test the extent of media exposure on the number of issues of public concern. The study found that the public has more and more short-term media attention on issues closely related to personal life. On the contrary, the higher the level of media contact, the longer the media’s attention; The groups with high level of exposure paid relatively more attention to topics at different time points, while the groups with low level of media exposure showed significant differences in the number of topics of concern at different periods of time. There was no significant difference in the number of topics of interest between men and women. There were significant differences in the number of topics of concern among groups of different ages and different education levels.