中文摘要
本研究以中高齡者使用網路醫學健康資訊搜尋為出發點，探討中高齡者之網路醫學健康資訊判準能力、科技接受認知信念、主觀規範以及網路醫學健康資訊使用態度對網路醫學健康資訊使用意圖之影響。
本研究採問卷調查法，一共發出380份問卷，回收283份，回收率為74%。問卷調查結果經探索性因素分析、敘述統計、信度分析、t檢定、單因子變異數分析、皮爾森積差相關分析、多元迴歸等方法進行資料分析。研究結果顯示：個人社經背景部分，中高齡的網路醫學健康資訊判準之內容、功能部分為低教育程度者表現較佳；網路使用時間越多之中高齡的精緻化探索、科技接受認知信念之易用性以及網路醫學健康資訊使用態度表現越佳。中高齡網路醫學健康資訊判準、科技接受認知信念、主觀規範對於網路醫學健康資訊使用態度有顯著影響。網路醫學健康資訊使用態度對於網路醫學健康資訊使用意圖有顯著影響；而網路醫學健康資訊使用意圖對於網路醫學健康資訊判準、科技接受認知信念、主觀規範之關係係透過網路醫學健康資訊使用態度之中介效果。
最後，依據研究發現與討論，對於中高齡網路搜尋使用者、相關教學單位以及未來研究上提出參考與建議。

Abstract
The purpose of this research was to investigate the relationships among the utilization of health-related information on internet and information commitment of elderly adults, technology acceptance model, subjective norms, and the effect of the attitude towards intention to use health-related information in the future.
The samples were collected from those who are 45years old (and above). “The Attitude and Intention of Health-related Information on the Internet Questionnaire” was developed and distributed to 380 users. After collection of survey samples, exploratory analysis of factors, descriptive statistics, analysis for credibility, t-test, analysis of variance (ANOVA), Pearson correlation, and multiple regression analysis were adapted to run the procession of analysis. A total of 283 valid questionnaires was collected and organized. The results of the study showed that:
1. The lower educational level of samples performed better in the content and function of information commitment than the other levels.
2. The longer length of using the internet, selective exploration, accessibility of belief in acceptance of technology, and attitude toward utilization of health-related information on internet would be better.
3. Information commitment, technology acceptance, and subjective norms have significant influences on the attitude toward intention to use health-related information for higher aged adults.
4. Attitude toward intention? to use health-related information would cause significant influence on attitude toward intention to use health-related information.
5. Attitude toward internet medical information mediated the relationships between intention of use and the information commitment, technology acceptance and subjective norms for higher aged adults.
Finally, the result and the suggestions of the research were also proposed to the website users, the web designers, and the future researchers.

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