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Persuasion
a message induces change in beliefs,attitudes, or behaviors
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Central Route to Persuasion
occurs when interested people focus on the arguments and respond with favorable thoughts
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Peripheral Route to Persuasion
occurs when people are influenced by incidental cues such as a speaker's attractivness
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Credibility
- belivability
- viewed as an expert and trustworthy
- Gain credibility by:–saying things the audience agrees with
- –arguing against self-interest
- –saying something unexpected having knowledge of the topic (drug use from parents vs. from a doctor
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Sleeper Effect
- delayed impact of a message that occurs when an initially discounted message becomes effective such as when we remember the message but forget the reason for discounting it
- People forgot the source of the message; all they remembered was the message
- Remind people of the sources and credibility matters again
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attractiveness
having qualities that appeal to an audience. an appealing communicator often someone similar to the audience is the most persuasive on matters of subject preference
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Primacy Effect
other things being equal information presented first usually has the most influence
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Recency Effect
Information presented last sometimes has the most influence. less common than primacy
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Channel of Communication
the way the message is delivered whether face to face, in writing, on film or in some other way
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Two Step Flow of Communication
media influence occurs through opinion leaders who in turn influence others
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Need for Cognition
- the motivation to think and analyze.
- Assessed by agreement with items such as "The notion of thinking abstractly is appealing to me." and disagreement with items such as "I only think as hard as I have to."
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Cult (also called new religious movement)
- a group characterized by distinctive rituals and beliefs related to its devotion to a god or a person
- isolation from the surrounding "evil" culture
- charismatic leader a sect by contrast is spinoff from a major religion
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Attitude Inoculation
exposing people to weak attacks upon their attitudes so that when stronger attacks come they will have refutations available
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Altruism
motive to increase another's welfare without conscious regard for ones self interest
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Social Exchange Theory
human interactions are transactions that aim to maximize ones rewards and minimize ones costs
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egoism
motive supposedly underlying all behavior to increase ones own welfare
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Reciprocity Norm
expectation that people will help, not hurt, those who have helped them
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Social Capital
mutual support and cooperation enabled by a social network
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social responsibility norm
expectation that people will help those needing help
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Kin Selection
idea that evolution has selected altruism towards ones close relatives to enhance the survival of mutually shared genes
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empathy
putting oneself in another's shoes
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bystander effect
finding that a person is less likely to provide help when there are other bystanders
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Door in the Face Technique
strategy for gaining a concession. After someone turns down a large request the same requester counteroffers with a more reasonable offer
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Moral Exclusion
perception of certain individuals or groups as outside the boundary within which one applies moral values and rules of fairness.
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Moral Inclusion
regarding others as within ones circle of moral concern
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Over justification Effect
result of bribing people to do what they already like doing, they may then see their actions as externally controlled rather then intrinsically appealing
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Yale Model of Attitude Change
- –Source: Who is communicating
- –Message: What is being said
- –Channel: How is it being said
- –Audience: Who is listening
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Why does persuasion work
- Elaboration Likelihood Model assumes people want to have the “correct” attitudes
- Important to communicate message to person in a way that they will analyze and attempt to comprehend
- Depends on their willingness to elaborate (think deeply) about what is being sa
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Central route
- –Make person think carefully about what is being said
- –Best when person can think carefully–Influenced by strength and quality of arguments
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Peripheral route
- –Influence person through cues that are irrelevant to the actual message
- –Person is unwilling or unable process message content carefully
- –Influence by cues that irrelevant to the message itself (amount of information or attractiveness of communicator)
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Source Variables
- §Who is trying to do the persuading?–Credibility and the sleeper effect–Attractiveness
- Especially important when person is not motivated or lacks the ability to process the message carefully
- People arguing with the same exact words can have different effect (Liberal vs. Socialist leaders in Dutch parliament)
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SleeperEffect Hovland and Weiss (1951)
- Read article that nuclear-powered submarines were safe
- Written by either Oppenheimer or Pravda
- At first, people were more persuaded when they thought Oppenheimer wrote it
- Four weeks later, Oppenheimer lost persuasive power, while Pravda gained it
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Source Conclusion
- Who is communicating is important
- Credibility matters, especially at the beginning
- Attractive communicators are more persuasive than unattractive ones
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MessageContent
- What makes a message persuasive, independent of the source
- –Vividness
- –Fear and humor
- –One-sided vs. two sided arguments–Repeating a message
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Vividness
- use of graphic message as opposed to data and facts to persuade (reason vs. emotion)
- See both on TV (comparing detergents vs. Choosy mothers choose Jif)
- This is your brain on drugs commercials are vivid, but not very fact filled.
- §Vivid and colorful stories can help persuade, especially when facts are dry (energy efficiency study: 15% vs. 61%)
- Well-educated or analytical people are less persuaded by vivid appeals
- §Sometimes vividness can backfire
- Vividness can distract from point of message, especially when the images are incongruent with the theme of the message
- Humor works much the same way. The humor should be related to the message, which leads to more processing
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Fear
- §can be either vivid or evidence-based
- Mixed evidence for fear appeals
- Examples:–Cigarette smoking–This is your brain on drugs–DWI
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Protection-Motivation Theory
- Fear leads to both a self-protective response and an attempt to avoid the fear-arousing threat (Rogers, 1983)
- –threat is serious–
- threat is probable–
- recommendations to avoid threat will be effective–
- have the ability to follow these recommendations
- Need to convince people that they should change (points 1 and 2)
- Able to change (points 3 and 4)
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Repeating a Message
- Mere exposure effect: The more you see something, the more you like it
- Don’t even have to consciously be aware of the stimuli
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Onesided
present only your arguments
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Two-sided
- acknowledge opposition’s case and refute it
- more effective when people initially disagree or when they are well-informed
- Two sided messages are better with people who initially disagree
- Also those who are well-informed or going to be exposed to opposing viewpoints in the future
- –Appear fair, objective, and thus more trustworthy
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One sided vs. Two sided Appeals
- Convince American soldiers who won the war in Germany of the need to fight in Japan
- One sided vs. two sided argument
- Effectiveness depended on who is listening
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Content Conclusion
- Overlapping vivid information with the theme of the message is most effective
- Fear can also be effective, providing a way of avoid the undesirable outcome is given
- Repeating a message works
- Have to match arguments to audience
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Channel Variables
- How is the message being sent?
- The medium itself
- Self-generated persuasion
- Rapid speech
- Powerful speech
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Medium
- Actively created attitudes are stronger and more persuasive (remember section on attitude-behavior link?)
- The more lifelike the medium, the more persuasive, in order: live, videotaped, audiotaped, written
- Messages are best comprehended and recalled when written, so that medium is best for complex messages
- Lifelike messages draw attention to communicator and away from the message itself
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Self-Generated Persuasion
- Persuasion can’t change people’s minds; persuasion just sets up the proper conditions where people are willing to change their attitudes
- Have people list their own reasons for changing their attitudes
- Self-generated ideas are highly persuasive–Highly credible source-yourself
- –Very life-like
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Gregory et al (1982)
- Had salesmen either use the self-generated technique or simply listed reasons for having cable
- Less than 20% bought cable when passively given information
- Almost 50% subscribed when they imagined the reasons for owning cable
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Rapid Speech
- People who speak quickly are generally more persuasive because they convey the impression that they are more credible
- Peripheral cue, thus works best when audience is not processing deeply (no time to think of counterarguments)
- When audience is in favor of speaker’s position they can’t process information, so the message is wasted
- Drinking age study (Smith and Shaffer, 1991).–IVs
- Fast, normal or slow speech
- Pro or counter attitudinal speech–DV
- How persuaded were underage drinkers–Outcomes
- Rapid counter attitudinal speech worked
- Rapid pro attitudinal speech had no effect
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Powerful Speech
- Confidence matters
- Powerful vs. powerless speech–Hesitation (um, you know)
- –Disclaimers (I’m not an expert, but)–Qualifiers (sort of, I guess)
- –Tag questions (don’t you think?)
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Powerful Speech and Gender
- Women are less likely to use powerful speech
- Men are more persuaded by women using powerless speech, whereas women are more persuaded by women using powerful speech
- Possible solution: use powerful speech with friendly and affiliative non-verbal style
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Channel Conclusion
- The medium matters
- Rapid speech can either help or hurt, based on the audience
- Powerful speech increase effectiveness; powerless decreases persuasion
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Audience Variables
- Who is listening?
- –Mood
- –Age
- –Need for cognition
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Mood
- Good moods appear to increase persuadability
- Janis (1965) had people read persuasive messages while eating or without snacks. Those eating were more persuaded (also works with music)
- Why?–Mood as information
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Mood as information approach
- Mood as information–Negative moods: something is wrong and action is necessary–Positive moods: everything is okay, no need to think
- People in a positive mood think less hard
- Does not mean that people in a bad mood will react negatively, just that they will think more deeply, need better arguments
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Individual Differences and Persuasion
- Some other characteristics predict who is most likely to be persuaded
- –Need for cognition
- –Age (life cycle vs. generational arguments)
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Audience Variables Conclusion
- The audience is important in determining the outcome of a persuasive message
- Moods affect central vs. peripheral processing
- Individual differences matter (age, need for cognition)
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Helping
- Many extreme examples of failure to help:–Kitty Genovese murder–New Bedford rape in “The accused”
- Many extreme examples of helping:–Carnegie “Hero” awards–Oskar Schindler in “Schindler’s List”
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Helping in an Emergency
- Latané & Darley studies
- 1.Notice the event
- 2.Define as an emergency
- 3.Take personal responsibility
- 4.Have ability to help
- 5.Decide to intervene
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Define as an emergency
- Sometimes obvious:
- –Arrive on the scene at a car wreck
- –Professor has seizure
- Sometimes much less so:
- –Is that blind person lost?–
- Is that couple fighting or
- playing?
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How to resolve the ambiguity
- Look to other people (Social Comparison):–Do others seem concerned for the blind woman?–Do others seem concerned by the couple fighting?
- If they seem concerned, then I should be concerned
- If not, then I should not be concerned
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Big Problem
- What if they are looking to you to determine if this is an emergency?
- –You look calm because they look calm
- –They look calm because you look calm
- This is an example of pluralistic ignorance
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Pluralistic Ignorance
- We are doing the same thing, for the same reason, but we think its for different reasons
- Example
- What I think:–I don’t look worried because I don’t want to look foolish–They don’t look worried because there is no emergency
- In truth:–I don’t look worried because I don’t want to look foolish
- –They don’t look worried because they don’t want to look foolish
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Faulty Inferences
- No one else is helping--- Must not be an emergency
- Another example: Confusing lectures
- Why didn’t I ask a question
- –I don’t want to look stupid
- Why didn’t anyone else ask a question?
- –They understood the lecture
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Pluralistic Ignorance in an Emergency
- Smoke-Filled Room Experiment
- Goal:–Present people with an ambiguous emergency – smoke filling into a room
- Hypothesis:–When alone, more likely to interpret as a fire than with passive bystanders
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Smoke Filled Room
- Subjects arrive to a room
- Two conditions
- –Alone
- –Two passive confederates
- After several minutes, smoke
- Dependent Variable:
- –Leave room to report smoke
- Conclusions
- People were less likely to define smoke as an emergency in presence of passive others
- Question: What if the others in the room are not instructed to be passive?
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Smoke-Filled Room Experiment
- Additional Condition–Three real subjects
- Results–Real subjects reduced helping
- –Also affected interpretation of smoke
- Conclusion
- The presence of passive others can be interpreted as evidence that event is not an emergency
- Passiveness can arise from pluralistic ignorance in response to ambiguous emergencies
- Remember: Pluralistic ignorance only happens when the event is ambiguous!!
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Take Personal Responsibility
- Even when the event is unambiguous, may not help if they do not feel personally responsible
- Presence of others can lead to diffusion of responsibility
- Latané and Darley – overhearing an epileptic having a seizure
- –This is unambiguously an emergency situation
- –As a result, cannot be pluralistic ignorance
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Epilepsy Study: Conclusion
- Presence of others reduces helping even when an event is unambiguous
- This appears to be on account of diffusion of responsibility
- NOTE: The presence of others does not always reduce personal responsibility
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Experimenter in distress
- Subject arrives to laboratory
- Experimenter goes to get something from other room
- Hear crash and scream
- “I have broken my foot and I can’t get up”
- Conditions:
- –Alone
- –Passive confederate
- –Another subject (stranger)
- –Close friend
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Experimenter in distress
- Why did subjects help more with a friend?
- It was possible to communicate
- Can devise a strategy – lessens diffusion of responsibility
- Conclusions
- More likely to help if take personal responsibility
- Less likely to take responsibility if in presence of others who are:
- –Unresponsive – Epilepsy study
- –Strangers – Experimenter in distress
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Have ability to help
- How many of you know how to help if: –Professor Muraven starts choking on a chicken bone
- –Professor Muraven “blacks out”
- –Professor Muraven has a heart attack–Professor Muraven falls and experiences a compound fracture
- Conclusion:–It may be an emergency, it may be up to you, but you won’t help if you can’t
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Decide to intervene
- Even if …–Notice
- –Interpret as an emergency
- –Feel personally responsible,–Know how to help …
- –may decide NOT to help:
- If the cost of helping is high
- Embarrassment
- In a hurry
- If the victim does not “deserve” help–Attractiveness/similarity of person
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The Seminarian Study
- Seminary students
- All scheduled to give a sermon on the Good Samaritan after the study
- Half were made to run late by study
- On the way to the seminary, encounter someone slumped in a doorway
- Situation is important, not disposition. Example of the fundamental attribution error
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Altruism
- Helpinganother even when no benefits are offered or expected in return
- Isthis altruism?
- –Mary,an attorney, stops to aid the victim of an automobile accident
- –Bill calls the police when he sees his next door neighbor leave the house with a
- handgun
- –Gerald,a volunteer firefighter, is nearly overcome by smoke in a burning building as
- he saves the life of an elderly woman
–Bradand Cynthia donate 20% of their annual salaries to their church
–Yolandaanonymously donates $500 to a local charity
–Markrisks social ostracism to give a complete stranger the Heimlich maneuver, onlyto have everyone at the restaurant think he is a complete idiot
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Why
Do We Help?
- Selfish reasons
- Genetic benefits
- Social exchange
- Altruistic reasons
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Evolutionary Psychology
why help others if our goal is to ensure our own survival?
- Kin selection(“genetic determinism”):
- –To protect our kin
- –To look after the “pack”
- Positive
- take: Helping is human nature
- Negative
- take: Helping is for personal gain
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New York Times
- NEW YORK – The skeleton of a dwarf who died about 12,000 years ago indicates that
- cave people cared for physically disabled members of their communities …
- Frayer, a professor of anthropology at
- the University of Kansas at Lawrence, said in a telephone interview that the
- youth "couldn’t have taken part in normal hunting of food or gathering
- activities so he was obviously cared for by others”
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Social Exchange Theory
- Helping is motivated to maximize
- rewards and minimize costs
- We help because there are“rewards”associated with helping
- “Altruism,” then, is simply disguised self-interest
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Rewards of Helping
- Reciprocity
- Satisfying relationships
- Positive public image
- Positive private image
- Mood Enhancement
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Feel Bad? Do Good
- Cialdini’s negative-state relief
- model: We help to relieve distress
- Helping makes us feel better
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Manucia, Baumann, and Cialdini (1984)
- Mood freezing study
- Independent Variables
- –Reminisce about happy, sad or neutral life event
- –Mood is “frozen” or not
- Dependent Variable:
- –Call to recruit blood donors
- Conclusion
- Negative mood leads to helping
- We help to relieve our own distress (and not someone
- else’s)
- Other evidence:
- –The more sadness one feels, more
- one helps
- –However, if one anticipates a future good mood, one does not help
- –Only help when helping is easy and when it will make us feel better
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Feel Good? Do Good
- When people are in a good mood, they act so as to maintain that good mood
- Baron (1997)
- Get people either by Cinnabun or Macy’s at Crossgates
- Ask for change for a dollar
- Conclusion
- Helping often reflects self-interest
- –Negative State-Relief
- –Positive Mood Enhancement
- Dan Batson: There is true altruism
- –Some helping often is self-interested
- –But,true altruism arises from empathy
- Empathy causes us to put others’ concerns over own
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Empathy
- Two reactions to seeing someone suffer
- –Personal distress-preoccupied with our own anxiety
- –Empathy-compassion and tenderness for victim
- Personal distress leads to negative state relief or flight
- Empathy leads to helping, even if there is no personal gain
- How can you tell when a behavioris not motivated by self-interest
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Toi & Batson (1982)
- Read about “Carol” who needs lecture notes following a car wreck
- Empathy IV
- –Half instructed to “adopt Carol’s perspective”
- –Half instructed to “be objective and not worry how Carol feels”
- Self-Interest IV
- –Half lead to believe would encounter Carol next week
- –Half lead to believe that they would never meet her
- DV:
- –Helping Carol
- Conclusion
- Empathy can over-ride self-interest
- In subsequent studies, empathy
- effects not eliminated by positive mood
- induction (e.g., $1)
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