網路技術的發展與進步，改變了人們日常生活中的溝通習慣，也讓網路成為人際溝通與獲取資訊的主要來源。對於尋求日常生活不論食、衣、住、行各類資訊的民眾而言，網路無疑是一種既快速又便利的取得資訊來源。透過彼此使用、購買經驗分享與傳授，網友們相互提供的口碑資訊得以在網路的虛擬空間裡不斷地累積擴散。其中，香水虛擬社群成員間的互動與口碑訊息交流，為本研究所感興趣欲進一步研究的議題。 本研究以虛擬社群台大PTT Perfume 板的成員為調查對象，以社會資本理論歸結出的成員特性: 相似性、認同感及信任感三構念，來探討影響社群使用者知識分享交流的動機與其對網路口碑訊息傳遞的影響；另以訊息訴求與訊息框架二構念來研究其對社群使用者溝通效果及後續口碑傳播意願的關聯。本研究以「問卷調查法」進行資料的蒐集，共蒐集有效樣本問卷227 份，使用SPSS 18.0 來進行資料分析，以檢驗本研究模型和相關假說。 研究結果發現: (一)、社群成員的「相似性」不論對成員間的「知識貢獻」、「知識欲求」與「口碑傳播意願」，均有顯著正向的影響。社群成員的「認同感」對成員間的「知識貢獻」與「口碑傳播意願」，有顯著正向的影響；但對成員的「知識欲求」則無顯著影響。社群成員的「信任感」對成員間的「知識欲求」有顯著正向的影響；但對成員的「知識貢獻」與「口碑傳播意願」則無顯著影響。(二)、「正面框架」的訊息表達方式，以及不論「理性」、「感性」、或「自我象徵」的訊息訴求，對於社群使用者均能帶來正向顯著的「溝通效果」；另外，訊息的「溝通效果」，會對社群成員網路口碑傳播的意願帶來顯著正向的影響。(三)、最後，Perfume 板虛擬社群成員間的「知識交流」程度，亦會對社群內的「口碑傳播意願」帶來顯著正向的影響。 / The development and progress of Internet technology has changed human communication, especially interpersonal communication and information searching. Moreover, the Internet has become a convenient communication channel in our daily life for gathering product-related information. Product users can share their purchase and usage experience with one another over the virtual network and the impact of online word-of-mouth is escalating. Accordingly, this study is to discuss the sharing and transmission of the online word-of-mouth about perfume among the virtual community members. Data were collected by an online questionnaire survey from 227 members of PTT_Perfume, which is one of the most famous virtual communities in the area of BBS. The study incorporates similarity, identification, and trust from the perspective of the social capital theory to discuss the knowledge sharing intention and their influences on the word-of-mouth transmission；Besides, it investigates how the message appeals and message framing affect the communication effect and how online word-of-mouth spreads among the virtual community. The data analysis was conducted using SPSS 18.0. The findings of this research reveals that community similarity is positively associated with the knowledge sharing and the intention of online word-of-mouth transmitting；Identification is positively associated with the knowledge contribution and the intention of online word-of-mouth transmitting；Trust is only positively associated with the knowledge acquisition. Second, positive framing, rational, emotional and self-expressive appeals all have positive influences on communication effect. Finally, the communication effect of messages and the degree of knowledge sharing both have positive impacts on the intention of online word-of-mouth transmission.

現今社群媒體已經是人們生活的一大部分，而網路提供了更容易與消費者接觸的平台給廠商呈現其廣告訴求，廣告訴求是一種策略，利用其所呈現的訴求說服消費者作出購買決策，或是改變消費者對於品牌的態度。本研究探討廣告內容的訊息訴求對於消費者購買決策的影響，並利用推敲可能性模型分析消費者的決策路徑。 因為先前針對推敲可能性模型的決策路徑主要都是以推論為主，本研究設計了一個測量中央及邊陲路徑的問卷，藉此了解受測者實際感受到的決策路徑。而整體的問卷透過一個網路實驗收集資料，結果發現廣告訴求對思考路徑有顯著的關係，理性的廣告訴求會使消費者傾向於使用中央路徑；感性的廣告訴求則會使消費者傾向於使用邊陲路徑，而認知需求會對這個關係有交互作用的影響。同時也發現思考路徑對於購買意願會有顯著影響，不同的產品類型會對於這個關係有交互作用的影響。 / Social media and the Internet are inseparable elements of modern human life. Online advertising becomes a popular method for vendors to access their consumers. Advertising appeals are important in attracting consumers’ attention of products and services. In this study, we investigate the effect of online advertising appeals on consumer’s purchase decision using the Elaboration Likelihood Model (ELM) that proposes a central-peripheral dual-route persuasion mechanism. We designed an instrument to measure the perceived route in decision processes and applied it in an online experiment to examine how different appeals affect the central and peripheral routes in consumers’ decision processes. The results indicate that advertising appeals have significant effect on decision routes. Cognitive needs are found to have interaction effects. Decision through different routes also have significant effect on consumers’ decision, while product types have moderation effects.

軟體專案承諾升級現象發生時，可能會造成更多資源成本的投入，若投入更多的資源，而專案依然失敗，則會造成更多的浪費，是企業界最不希望看到的情形。本研究利用推敲可能性理論探討此現象，了解不同的說服方式如何影響受測者的決策過程。根據遇到專案的狀況，依照訊息訴求分成理性訴求與感性訴求的敘述方式，加入框架效應 (正向／負向) 以及訊息強度 (低／中／高) 兩變數，以自我責任作為調節變項進行探討，研究在不同情況敘述下，決策制定者接收專案訊息描述後其決策過程中的推敲可能性，以及推敲可能性與決策之間的關係。 研究發現如下： 1. 單一效果影響下，訊息強度中比起其他兩個強度較容易引起訊息接收者運用中央路徑思考。 2. 訊息訴求、訊息框架以及訊息強度會交互影響受測者推敲可能性，在正向框架下，訊息訴求與訊息強度對訊息接收者運用中央路徑做決策有顯著的交互作用。 3. 在訊息強度中與強的情況下訊息訴求與訊息框架對訊息接收者運用中央路徑做決策有顯著的交互作用。 4. 在感性訴求、正向框架與訊息強度強的訊息描述下，訊息接收者運用中央路徑思考時，較不容易做出承諾升級的決定。 5. 在自我責任調節下，則是感性訴求、負向框架與訊息強度弱的訊息描述，會引起訊息接收者運用中央路徑思考時，較不容易做出專案繼續的決策。 / Escalation of commitment is common in software project development. There are a few theories that have been used to explain this behavior, including the framing effect and self-responsibility. This study investigates the issue from the dual-path elaboration likelihood model (ELM) to examine how different persuasion routes may play roles in the decision process. An experiment was designed to study the effect of different descriptions of project status that may lead to different decision routes (central versus peripheral routes). The experiment design includes message appealing (rational vs emotional appealing), message strength (strong, medium and weak), and framing (positive vs. negative) as main variables and the responsibility as a moderator. The subject was asked to decide whether s/he would continue the project under a given scenario. Our results includes the following: 1. Message appealing, message framing, and message strength have significant interaction effect on the subject’s decision routes; 2. In positive framing, message appealing and strength has significant interaction effect on the use of the central route; 3. When message strength is medium or strong, message appealing and framing has significant interaction effect on the use of the central route; 4. Regarding to decision escalation, the likelihood of escalation is lower when the decision route is central (thinking) under the emotional appealing, positive framing, and strong message; 5. The likelihood of escalation is lower when the decision route is central under the emotional appealing, negative framing, and weak message description.