本研究以延伸平行反應模式，檢驗恐懼訴求對大學生的核電態度與行為意圖之影響，研究方法採用前後測實驗法，受測者為 211 位來自八個大學的大學生。研究發現，無論是支持或反對核電，同時有高感知威脅和高感知效能的受測者，其態度或行為意圖的影響最為顯著，而感知威脅和感知效能皆為低度者，影響的效果最小，甚至會負向的影響節約能源行為意圖和反對核電的態度，故相關訊息應盡量使用高威脅+高效能的訊息，避免低威脅+低效能的訊息。

This study used extended parallel process model to examine the effect of fear appeals on college students’ attitudes and behavioral intentions toward the issue of nuclear power. A pretest-posttest quasi-experimental design was adopted. Two hundred eleven college students from eight universities were recruited for this experiment. The data analysis shows that: Among the four groups, the HH group (high perceived threat +high perceived efficacy) resulted in the greatest positive attitudes and behavioral changes, while the LL group (low perceived threat +low perceived efficacy) resulted in negative changes in attitudes and behavioral intentions. This study suggests that when designing persuasive message for nuclear power, messages should contain both threat and efficacy information, but messages with low threat and low efficacy be avoided.