Explain how advertising persuades people most effectively, and also explain some of the ways in which it might fail.

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Section A, Question 2

Explain how advertising persuades people most effectively, and also explain some of the ways in which it might fail.

Advertising is a form of social influence. Social influence is defined as when “one person’s behaviour causes another person to change an opinion or to perform an action that he or she would not otherwise perform”. This can be open (as used in adverts) or manipulative (the attempt is hidden from the target).

   Advertising is all around. It is defined as “paid communication through a non-personal medium in which the sponsor is identified and the message is controlled” Advertisements can be made from all sorts of sources, from individuals to large companies and are made usually through the media. Although word of mouth is not strictly advertising, "buzz advertising" is a recent term used to describe an attempt by advertisers to simulate word-of-mouth communications.

   There are many things which can affect the success of advertising. Firstly, the elaboration likelihood model (Petty et al, 1986), states that there are two routes a persuasive message can go through to produce attitude change. The central route involves evaluating and elaborating on the information that the advertisement has given them, comparing it with what you already know and coming to a decision about it. The attitudes as a result are more strongly held and more resistant to change. The strength and quality of the arguments are the determinants of whether the message is accepted. The peripheral route and the identity and credibility of the source determine its effectiveness.

   Next, the communication persuasion paradigm displays the components that affect successful advertising. The theory differentiates between the source (advertiser), the message, the target (person receiving advertisement) and the effect. The characteristics of all of these depend on the success.

   The source’s identity is sometimes more important than the actual message in determining an adverts’ effectiveness. If the source is considered to be credible and believable, the message is more likely to be effective. This can be expressed through confidence and appearance. The source is considered credible if they are an expert in the field and they are trustworthy. If the source is a perceived expert, the target is more accepting of what they say. However, even if a source is thought to be an expert it doesn’t make them trustworthy. Often, to decide if they are trustworthy, an individual will look at their motives for persuading. If they appear to have a lot to gain from it, many will discard the message. Yet if they seem to share the same goals as you and are providing a counterargument for their own position they are perceived as trustworthy.

   The source’s attractiveness is also a big predictor of message success. As it is rewarding to look at an attractive person, the advert gains attention and we like the person more. However, with a weak argument it makes little difference how attractive the source is. Also, the social impact theory suggests that the target will be more influenced when the sources are strong, physically close and there are numerous sources. However, the sources must be independent from each other; otherwise it will have no more impact than if it was from a single source. Also, it only works up to an extent, if there are too many sources it may prove artificial.

The properties of the message also affect success. For a message to cause attitude change, it must be at least slightly discrepant from what the target already believes, but if it is too discrepant it becomes unbelievable. However, if it is highly discrepant it is more believable if it comes from a high credibility source. A study by Bochner and Insko (1966) demonstrates this. They gave participants a message on how many hours of sleep the average person needs per night. People in the first condition were told that it was written by a physiologist (high credibility) and in the second condition were told it was written by a YMCA director (medium credibility). Also, some from each condition had the ‘8’ hour message, some the ‘7’ hour message, all the way to ‘0’ hours. The results showed that the physiologists ideas were accepted more the higher the discrepancy was between what the individual believed and what the physiologist suggested. However, the YMCA director was only believed up to a moderate discrepancy. Therefore, the source with the highest credibility caused the most attitude change at higher levels of discrepancy.

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   Another message property is fear arousal. This comes in two forms. Rational appeals present facts, and provide the missing solution to the target audience’s problems. Emotional appeals on the other hand intend to arouse basic drives. Often they involve creating fear by giving a negative consequence of not changing your attitudes or behaviour as the source suggests (Higbee, 1969). However, creating too much fear causes people to become too frightened and the desired behaviour change ceases to happen.

   Finally, the characteristics of the target can affect a message’s success. Johnson and Eagly (1989) believe that a targets’ ...

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