| The degree of aging in China is becoming more and more serious.Popular science education for the elderly is an important aspect of realizing the healthy aging.With the development of mobile Internet,the main position of popular science for the elderly has gradually turned to mobile micro video.Compared with the increasing needs of the elderly,the popular science micro video for the elderly is insufficient in both quantity and quality.Most of the research related to popular science micro video is also conducted for young people,lacking a scientific user evaluation index system of popular science micro video for the elderly and a theoretical basis to guide the design practice and optimization of popular science micro video for the elderly.This thesis starts with the characteristics of the elderly and popular science micro video,and combs the technology acceptance theory to provide guidance on methods and contents for follow-up research;Secondly,based on the theory of technology acceptance model,the views and needs of the elderly on popular science micro videos are obtained through interviews,to find the factors affecting their perceived experience when watching.This research gets the evaluation index of popular science micro video for the elderly by using KJ method to summarize the data obtained from the interview,and then preliminarily establishes the evaluation index system of popular science micro video for the elderly through classifying the index in combination with relevant literature and theoretical research;Thirdly,the obtained indicators and classification latitude are verified and adjusted by using the questionnaire survey method.The GI method is used to give weights to the indicators at all levels to obtain the users evaluation index system of the popular science micro video for the elderly with 3 first-class indicators,9 second-class indicators and 27 third-class indicators;Finally,on the basis of the evaluation index system,this thesis puts forward the optimization strategy of popular science micro video design for the elderly,completes the design practice,and makes a useful exploration for improving the effectiveness of popular science micro video design for the elderly. |