slogan
noun 1. a distinctive cry or phrase of any party, class, body, or person; a catchword.
2. a war cry or gathering cry, as formerly used among the Scottish clans. [Scottish Gaelic sluagh-ghairm army cry]
-The Macquarie Dictionary Online © Macquarie Dictionary Publishers Pty Ltd. All rights reserved.
The receptivity of the masses is very limited, their intelligence is small, but their power of forgetting is enormous. In consequence of these facts, all effective propaganda must be limited to a very few points and must harp on these in slogans until the last member of the public understands what you want him to understand by your slogan.
-Adolf Hitler
In an election campaign, especially a short one, simplistic slogans that appeal to the public's fear and negativity are usually more effective than nuanced positions or explanations of policy...
-Jacqueline Kent
Simplistic ideas ... often become badges of identity for groups of like-minded people, who repeat certain phrases to each other and eventually mistake repetition for truth.
-Paul Krugman
Research has shown that in general, three to five repetitions is enough (Briñol et al, 2008) and after that its effects either tail off or lead to reactance.
-ChangingMinds.org (Limits to Repetition)
Thus strings of unconnected words, and constant repetitions of words and phrases, are very properly condemned in written speeches: but not in spoken speeches-speakers use them freely, for they have a dramatic effect.
-Aristotle
Is repetition a panacea, a factor that always works? No way! Mere exposure is most effective under certain conditions. First, it works best for neutral products and issues - those to which we have not yet developed a strong attitude. It explains how advertising forms attitudes towards products, not how it changes them. Second, once people have developed an especially negative attitude toward a product, company, or politician, repetition cannot change the attitude. In fact, it may have the opposite effect, producting more negative affect toward the issue as people ruminate about how much they they hate the fast-food product, big corporation, or obnoxious politician (Tesser, 1978).
-The Dynamics of Persuasion by Richard M. Perloff