藏汉双语儿童学业成绩影响因素的结构方程模型

Analysis on Factors Influencing the Tibet-Hart Bilingual Children＇s Academic Performance Under the Structural Equation Model

以甘南藏族自治州的468名小学生为对象，采用问卷、访谈法对影响藏族双语儿童学业成绩的各种因素进行研究。通过验证性因子分析构建测量模型，ML法估计参数，经过评价修正确定最佳模型，该模型效果拟合较好。研究结果表明，对双语儿童学业成绩主要有五个因素，其中起直接作用的是学校因素、自身因素、社区文化因素、家庭因素，间接作用有第二语言发展因素。其作用排序为：社区文化因素〉学校因素〉家庭因素〉自身因素〉第二语言发展因素。

In this study, 468 students from the Gannan Tibetan Autonomous Prefecture take questionnaires and interviews were used to analyze the various factors affecting the Tibetan bilingual children＇s academic studies. Measurement models were built by confirmatory factor analysis and parameter were estimated by ML method. The final structural equation model was determined by the comprehensive evaluation and necessary modification. The goodness of fit for the structural equation was satisfactory that all indices had met responding requirements. The results show that there are five main factors affecting the academic performance of bilingual children. Four factors （school, children, community culture, and family） were directly affecting the children＇s academic studies, while another one factor （Second language development） had indirect impacts. According to the percentage of their contribution, the factors were ranked as follows： community culture, school, family, children and second language development.