現今電子菸所帶來的隱藏的危害在生活中難以察覺，本研究透過路徑分析法評估電子菸及其二手菸和第三人效果的相關性。以社會距離和涉入度檢驗閱聽人是否會對電子菸及其二手菸產生第三人效果，並以其所產生的認知差距探討對於後續支持管制及社會可欲行為的關係。
研究結果發現社會距離確實會擴大第三人效果的認知差距，然而，涉入度
與第三人效果認知呈現負相關並與第一人效果有正相關，當涉入度越高時，對
自己的影響較大。而後續第三人效果認知及涉入度僅能預測部分實際行為。
 

Nowadays, the hidden harm brought by e-cigarettes is hard to be detected in daily life. This study used path-analysis to evaluate the correlation between e-cigarettes, second- hand smoke and third-person effects. Social distance and involvement were used to test whether the audience would have a third-person effect on e-cigarettes and second-hand smoke. In addition, we also predict that whether the reaction of audience can support for law regulations, and take those preventive activities into account.
The results show that social distance have impacts on the third-person effect, however, the involvement is negatively correlated with the third-person effect and positively correlated with the first-person effect. The higher the involvement degree is, the greater the effect is on oneself. The third-person perception, involvement can only predict part of the behavior to supporting law regulation and taking those preventive activities into account.