基于TPB-TAM整合模型的健康城市建设中居民参与意愿的影响因素分析

Analysis on influential factors of residents’ willingness to participate in healthy city construction based on TPB-TAM integrated model

目的 建立预测居民参与健康城市建设影响因素的整合模型并进行验证,探索影响居民参与健康城市建设意愿的可能因素,为进一步采取有效的干预措施提供理论依据。方法 2021年6月采用方便抽样法抽取489名成都市居民进行问卷调查,整合技术接受模型和计划行为理论构建结构方程模型对整合模型进行验证。结果 经修正后的整合模型具有较好的拟合度,卡方自由度比值(χ^(2)/df)为1.289,近似误差均方根(root-mean-square error of approximation,RMSEA)为0.024,比较适配指数(comparative fit index,CFI)、标准适配指数(normed fit index,NFI)、非标准适配指数(Tucker-Lewis index,TLI)、增值适配指数(incremental fit index,IFI)均达到0.9以上的标准。感知有用性是参与意愿最直接的预测变量,路径系数为0.230,参与态度是感知有用性和感知易用性预测参与意愿的中介变量,中介效应分别占总效应的25.76%和34.84%,主观规范是所有参与意愿预测变量中影响最小的因素,路径系数为0.113。结论 整合模型能够很好地预测健康城市建设中的居民参与意愿,感知价值和参与态度作为个体因素,对居民参与健康城市建设意愿的影响总体上要大于主观规范等社会因素。

Objective To establish and verify an integrated model for predicting the influencing factors of residents’ participation in healthy city construction,explore the possible factors influencing residents’ willingness to participate in healthy city construction,and provide theoretical basis for further carrying out effective intervention measures.Methods In June 2021,the convenience sampling method was used to select 489 residents in Chengdu City to conduct a questionnaire survey,the integrated technical acceptance model and structural equation model based on the theory of planned behavior were used to verify the integration model.Results The modified integration model had a good fitting degree,the Chi square degrees of freedom χ^(2)/df was 1.289,rootmean-square error of approximation(RMSEA) was 0.024,and comparative fit index(CFI),normed fit index(NFI),Tucker-Lewis index(TLI) and incremental fit index(IFI) were all above 0.9.The perceived usefulness was the most influential predictor of participation intention with the path coefficient of 0.230.The participation attitude was an intermediary variable between perceived usefulness and perceived ease of use to predict participation intention,and the intermediary effect accounted for 25.76% and 34.84% of the total effect respectively.The subjective norm was the least influential predictor of participation intention with the path coefficient of 0.113.Conclusion The integrated model can well predict the participation intention of residents in healthy city construction,perceived value and participation attitude,as individual factors,have greater impact on residents’ willingness to participate in the construction of healthy city than social factors such as subjective norm.