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证言法

证言法,又称为名人证言法或代言,是一种普遍使用于广告及宣传的手法,让知名公众人物或一般民众利用书面或实际演说的方式,替特定事物证明或背书,借此提高事物的可信度。

证言法现在最常被使用在电视广告中,尤其是资讯型广告。例如一个中产阶级家庭的妇女,可能会在广告中兴奋地介绍某个厂牌的洗衣皂是多么的好用,借此广告主可以塑造产品平易近人而且广泛被使用的形象。

一般来说,证言法最好能找与目标群众较为接近的人物来代言。但对于名人证言法而言,则是将名人的形象移转至产品、品牌或公司,也就是希望产生所谓的月晕效应。名人证言法有一个最大的致命伤,也就是当代言人在公众有负面形象时,负面形象同时也会回头去伤害所代言的产品或品牌价值。

宣传批判网站认为,适当地引用知名人物或一般民众对于某件事物的看法其实并没有错,也可以建构一个平衡的论述,但实际上证言法却经常被使用在一个不当而且误导的情境中,例如请一位名人来为某项事物背书,事实上这位名人并不具备评判该事物的足够能力,例如请艺人来替政治人物背书。

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证言法
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