在數位時代中，大眾接收新聞的方式變得多元，生活充斥著各種訊息，民眾所得到的資訊未必都是正確的，許多不實與錯誤的報導一再的出現在新聞媒體中，因此，新聞可信度已經成為大眾選擇新聞的重要因素，對於新聞價值更扮演著關鍵的角色。
本研究以醫藥新聞為例，採用實驗法，為2（專業性消息來源：官方來源、專業人士）× 2（內容呈現形式：文字搭配圖片、文字搭配圖表）二因子組間設計，共4組實驗組合，依變數為新聞可信度，探討專業性消息來源與內容呈現形式對新聞可信度的影響。
研究結果顯示，不同專業性消息來源對新聞可信度的影響有顯著差異，且專業人士影響高於官方來源，不同內容呈現形式對新聞可信度的影響無顯著差異。此外，專業性消息來源、內容呈現形式組合，無交互作用影響新聞可信度。

In the digital age, the way of publics receiving news is diverse. Life is filled with all kinds of information. People may not always receive the correct information. Many false and incorrect reports appear repeatedly in news media. Therefore, news credibility has become an important factor in the public's choice of news and plays a key role in the value of news.
The study uses medical news as an example, and applies two factors between-subjects design: 2 (professional source: official source/professional) × 2 (content presentation form: text with picture/text with informational graphics). The news credibility is a dependent variable. There are four kinds of experimental combinations in total. By conducting the experiment, we understand how the influence factors of professional sources and content presentation form affect the news credibility.
The results show that different professional sources effect significantly on the news credibility, and the influence from professional is higher than official sources. Different content presentation form has no significant effect on the news credibility. Besides, professional source and content presentation form doesn’t have significant interaction effect on the news credibility.

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