Chapter 8 Studies And Terms Flashcards
Elaboration Likelihood Model
-people in certain contexts process persuasive messages rather mindlessly and effortlessly, and on other occasions deeply and attentively (analogous with automatic and controlled processing)
-some persuasive appeals are more effective when target audience is largely on autopilot, others are more effective when target audience is alert and attentive
Central route of Persuasion
-occurs when people think carefully and deliberately about content of persuasive message - attend to logic and strength of arguments and evidence presented in message - rely on relevant info of their own to evaluate message
Dual-Process Approach to Persuasion
-two routes: central and peripheral
-routes are engaged by different levels of motivation and ability to attend to message, and different types of persuasive appeals are more effective through one route than another
Peripheral Route of Persuasion
—attend primarily to peripheral aspects of a message - superficial, easy to process features of a communication that are tangential to persuasive info itself
-peripheral cue examples: apparent expertise, credibility, or attractiveness of person communicating persuasive message
-can be forms of evidence when processed in a deliberate, thoughtful fashion - when persuasion occurs through peripheral route, person is swayed by cues without engaging in much thought
-this cue can also change person’s emotional reaction to attitude object (focus of the persuasive appeal) leading to change in attitude on the basis alone
Motivation for processing route chosen
-motivation to devote time and energy to a message: when message has personal consequences, we’re more likely to go the central route and carefully work through arguments and relevant info
Ability for processing route chosen
Ability to process the message in depth: when we have sufficient cognitive resources and time, we’re able to process persuasive messages more deeply - the more we know, the more thoughtfully we’re able to scrutinize a persuasive message
-when ability is low (argument is presented too quick or is hard to comprehend) more apt to rely on easy-to-process peripheral cues associated with message (such as credentials or message source0
-being tired or distracted also makes peripheral processing more likely
Sarah an, Spencer and Zanna study: thirst study
-participants arrived at study, half allowed to drink water, other half left thirsty
-all were subliminally primed - some with words related to thirst, others with neutral words
-were then allowed to drink as much as they wanted of each of 2 beverages
-those primed with thirst related words drank significantly more than thirst participants primed with neutral words
-primes had no influence on non-thirsty individuals
-subliminal studies are low on external validity as outside world makes subliminal effects weaker in daily life
-stimuli are presented right before assessment of target attitude or behaviour in lab experiments and participants also encounter no competing messages in the interim - is almost never the case in the real world
-subliminal messages don’t make people do things they are opposed to doing
Petty, Cacioppo and Goldman study: comprehensive exam
-P’s read either 8 weak or 8 strong arguments in support of implementing policy requiring comprehensive exam for graduating seniors at a university
-personal relevance manipulated by varying time policy would be initiated (either the following year or in 10 years)
-source of expertise was also varied: half of P’s told arguments were generated by local high school class and half told arguments were generated by Carnegie commission on higher education
-when message is personally relevant to students (implemented next year) - students more likely to pay attention to strength of arguments - no personal relevance, strength of arguments didn’t matter much
-participants were predominantly influenced by expertise of course
-students taking test following year were far less influenced by expertise of course
-therefore: high personal relevance led participants to be persuaded by strength of arguments (central route of persuasion) lack of relevance to person led participants to be persuaded by expertise of source (peripheral route persuasion)
Elements of Persuasion
Created by Carl Hovland - Yale University
Persuasion has 3 elements: source of message, content of message, intended audience of message
Source characteristics
Attractiveness of person delivering message
Credibility of person delivering message
Certainty (confidence) of person delivering message
Attractiveness
-attractive communicators can promote attitude change through peripheral route
-attractive sources are particularly persuasive when message isn’t personally important to those hearing it and when those people don’t have much knowledge in the domain
-attractive sources can lead to persuasion through central route by increasing favourability of people’s effortful thinking about position being endorsed for example
Credibility
-credible sources: are expert and trustworthy -advertisers take advantage of those
-credibility alone can sway opinions under circumstances that promote peripheral route of persuasion
-when using central route and are highly motivated and able to think carefully, sourced credibility can be taken as a strong argument in favour of moving toward position credible source is endorsing
-highly credible source linked to weak message? - weakness of message hurts persuasion initially but message can get dissociated from credible source over times so that persuasion is ultimately effective in long run solely because of sources credibility - the sleeper effect (get delayed persuasion by credible sourced who is initially linked to weak message, but down the road is dissociated from it)
Hovland and Weiss study: nuclear submarine study
-rated likelihood that nuclear submarine would be built in near future, 5 days later participants read essay about imminence of nuclear submarines and were told essay was written by highly credible physicist or non-credible journalist even thought content of essay was the same
-4 weeks later participants who read essay by non-credible writer shifted attitudes toward position he advocated (sleeper effect - messages from unreliable sources have very little influence initially, but over time have potential to shift attitudes)
Certainty
-expresses views with certainty and confidence - these sources tend to be more persuasive because people generally judge certain and confident sources to be more credible and source credibility is persuasive
-research in real-world contexts supports this idea
-study of jurors shows that people judge how credible eyewitnesses are based on confidence they express when given testimony - true despite fact that actual association between eyewitness confidence and accuracy is rather weak
Message Characteristics
What are message characteristics that make persuasive appeal most effective - depends on audiences motivation and ability to process message
-characteristics: message quality, vividness, fear, culture
Message quality
-high quality messages more persuasive in genera, especially for those with strong motivation and ability
-are of higher quality when they appeal to core values of audience, when they’re straightforward, clear, and logical and when they articulate desirable consequences of taking actions suggested by message
-more attitude change if conclusions are explicit in message
-also more persuasive when sources argue against their own interest (message and source are seen as more sincere)
Vividness
-when message is colourful, interesting, and memorable, its more effective
-vivid but misleading info can trump more valid and relevant info that isn’t flashy
-vivid images abound in media is evident in identifiable victim effect (tendency to be more moved by vivid plight of a single individual than by a more abstract number of people)
-vivid flesh and blood victims more powerful sources of persuasion than abstract stats
-recognizable victims more apt to elicit feelings of empathy, thereby leading to willingness to donate to worthy cause
- limitations of identifiable victim effect: in cases where its possible to blame victim for their plight, making person identifiable can breed negative perceptions of victim and decrease rather than increase aid
Hamill, Wilson, and Nisbett study: welfare
-attitudes toward welfare
-one condition - p’s read vivid story about woman who was a lifetime welfare recipient, story based on one that former US president Ronald Reagan told about a welfare queen: lifetime recipient of welfare who exploited system to enjoy life of comfort and leisure
-another condition: P’s read facts about welfare
3rd condition: participants read both: in this condition it should have been clear that case was not typical to welfare recipients in general
-which message led more to attitude change - participants changed attitudes more with vivid story even when they had the cold statistics - facts do little to alter attitudes