March 30, 2020
Science Of Persuasion

Science Of Persuasion

Researchers have been studying
the factors that influence us to say yes to the request of others
for over 60 years. And there can be no doubt that there’s
a science to how we are persuaded. And a lot of the science is surprising. When making a decision it’d be nice to think that people consider
all the available information in order to guide their thinking. But the reality is very often different. In the increasingly overloaded
lives we lead, more than ever we need shortcuts or rules of thumb
to guide our decision-making. My own research has identified
just six of these shortcuts. As universals that guide human behavior, they are: Reciprocity, Scarcity, Authority, Consistency, Liking, and Consensus. Understanding these shortcuts and
employing them in an ethical manner, can significantly increase the chances that
someone will be persuaded by your request. Let’s take a closer
look at each in turn. So the first universal principle
of influence is Reciprocity. Simply put, people are obliged to give
back to others the form of behavior, gift, or service that they
have received first. If a friend invites you to their party, there’s an obligation for you to invite
them to a future party you are hosting. If a colleague does you a favor
then you owe that colleague a favor. And in the context
of a social obligation people are more likely to say
yes to those that they owe. One of the best demonstrations
of the principle of reciprocation comes from a series of studies
conducted in restaurants. So the last time you visit a restaurant, there’s a good chance that the waiter
or waitress will have given you a gift. Probably about the same
time that they bring your bill. A liqueur perhaps or a fortune
cookie or perhaps a simple mint. So here’s the question. Does the giving of a mint have any influence
over how much tip you’re going to leave them? Most people will say no. But that mint can make
a surprising difference. In the study, giving diners a single
mint at the end of their meal, typically increased tips by around 3%. Interestingly if the gift is doubled and two
mints are provided, tips don’t double. They quadruple, a 14% increase in tips. But perhaps most interestingly of all,
is the fact that if the waiter provides one mint, starts to walk away from the
table, but pauses, turns back and says, “For you nice people, here’s an extra
mint,” tips go through the roof. A 23% increase influenced not by what
was given, but how it was given. So the key to using the principle
of reciprocation is to be the first to give and to ensure that what you give
is personalized and unexpected. The second universal principle
of persuasion is Scarcity. Simply put, people want more
of those things they can have less of. When British Airways announced in 2003 that they would no longer be operating the twice
daily London-New York Concorde flight because it had become uneconomical
to run, sales the very next day took off. Notice that nothing had changed
about the Concorde itself. It certainly didn’t fly any faster, the service didn’t
suddenly get better, and the airfare didn’t drop. It had simply become a scarce resource. And as a result, people wanted it more. So when it comes to effectively persuading others
using the scarcity principle, the science is clear. It’s not enough simply to tell people
about the benefits they’ll gain if they choose your products and services. You’ll also need to point out what
is unique about your proposition and what they stand to lose if they fail to consider your proposal. Our third principle of influence
is the principle of authority. The idea that people follow the lead
of credible knowledgeable experts. Physiotherapists for example are
able to persuade more of their patients to comply with recommended
exercise programs if they display their medical diplomas
on the walls of their consulting rooms. People are more likely to give change for
a parking meter to a complete stranger if that requester wears a uniform
rather than casual clothes. What the science is telling us is that
it is important to signal to others what makes you a credible knowledgeable
authority before you make your influence attempt. Of course this can present problems. You can hardly go around telling potential
customers how brilliant you are. But you can certainly arrange
for someone to do it for you. And surprisingly the science tells us that it doesn’t
seem to matter if the person who introduces you is not only connected to you but also likely
to prosper from the introduction themselves. One group of real estate agents were able to increase
both the number of property appraisals and the number of subsequent
contracts that they wrote by arranging for reception staff
who answered customer enquiries to first mention their colleagues’
credentials and expertise. So, customers interested in letting
a property were told “Lettings? Let me connect you with Sandra who has over 15
years’ experience letting properties in this area.” Customers who wanted more information
about selling properties were told “Speak to Peter, our head of sales. He has over
20 years’ experience selling properties. I’ll put you through now.” The impact of this expert introduction led
to a 20% rise in the number of appointments and a 15% increase in the
number of signed contracts. Not bad for a small change in
form from persuasion science that was both ethical and
costless to implement. The next principle is Consistency. People like to be consistent with the
things they have previously said or done. Consistency is activated by looking for and asking
for small initial commitments that can be made. In one famous set of studies researchers
found rather unsurprisingly, that very few people would be willing
to erect an unsightly wooden board on their front lawn to support a Drive
Safely campaign in their neighborhood. However in a similar
neighborhood close by, four times as many homeowners indicated that they
would be willing to erect this unsightly billboard. Why? Because ten days previously, they had
agreed to place a small postcard in the front window of their home that signaled
their support for a Drive Safely campaign. That small card was the initial commitment
that led to a 400% increase in a much bigger but still consistent change. So when seeking to influence
using the consistency principle, the detective of influence looks for voluntary,
active and public commitments and ideally gets those
commitments in writing. For example, one recent study reduced missed
appointments at health centers by 18% simply by asking the patients,
rather than the staff to write down appointment details
on the future appointment card. The fifth principle is the principle of Liking. People prefer to say yes
to those that they like. But what causes one
person to like another? Persuasion science tells us that
there are three important factors. We like people who are similar to us, we like people who pay us compliments and we like people who cooperate
with us towards mutual goals. As more and more of the interactions
that we are having take place online it might be worth asking whether these
factors can be employed effectively in let’s say online negotiations. In a series of negotiation studies carried out between
MBA students at two well-known business schools, some groups were told, “Time is money.
Get straight down to business.” In this group around 55% were
able to come to an agreement. A second group however, were told, “Before you begin negotiating, exchange
some personal information with each other. Identify a similarity
you share in common then begin negotiating.” In this group 90% of them were able to come
to successful and agreeable outcomes that were typically worth
18% more to both parties. So to harness this powerful
principle of liking, be sure to look for areas of similarity
that you share with others and genuine compliments you can give
before you get down to business. The final principle is Consensus. Especially when they are uncertain, people will look to the actions and behaviors
of others to determine their own. You may have noticed that hotels often
place a small card in bathrooms that attempt to persuade guests
to reuse their towels and linen. Most do this by drawing
a guest’s attention to the benefits that reuse can
have on environmental protection. It turns out that this is a pretty effective
strategy leading to around 35% compliance. But could there be an even
more effective way? Well it turns out that about 75% of people who
check into a hotel for four nights or longer will reuse their towels at some
point during their stay. So what would happen if we took a lesson
from the principle of consensus and simply included that
information on the cards and said that 75% of our guests reuse
their towels at some time during their stay. So please do so as well. It turns out that when we do this,
towel reuse rises by 26%. Now imagine the next time you stay
in a hotel you saw one of these signs. You picked it up and you
read the following message: Seventy-five percent of people
who have stayed in this room have reused their towel. What would you think? Well here’s what you might think. “I hope they’re not the same towels.” And like most people
you’d probably think that this sign will have no influence
on your behavior whatsoever. But it turns out that changing
just a few words on a sign to honestly point out what comparable
previous guests have done was the single most effective message
leading to a 33% increase in reuse. So the science is telling us that rather than
relying on our own ability to persuade others we can point to what many others are already
doing especially many similar others. So there we have it. Six scientifically validated principles of persuasion
that provide for small practical, often costless changes that can lead
to big differences in your ability to influence and persuade others
in an entirely ethical way. They are the secrets from
the science of persuasion.

100 thoughts on “Science Of Persuasion

  1. Our video on the Six Universal Principles of Persuasion has over ten million views! Thank you for supporting Dr. Robert Cialdini and INFLUENCE AT WORK. We’re thrilled to help so many people maximize their professional success!

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  2. I don't find scarcity to be ethical, it's actually unethical. Pyramid schemes use this business model and so do people trying to sell you random products, it could be a shirt online at 60% off for a limited time or a car cleaner which cleans any part of your car for $200 but for today only it's $60.

    That kind of business relies on people to impulse buy and isn't ethical in the slightest.

    I have had several friends come to me with "business opportunities" aka pyramid schemes trying to tell me they're giving me this opportunity because I'm a good friend and they wanted to give me this opportunity. They all the say the same thing, how great it is but being very vague to any questions concerning their business.
    The scarcity is that you they're giving you the opportunity and you won't have it later on. I always try to let them down gently by saying I can't afford it when I easily can and their response is always the same, you need to spend money to make money.

  3. Habe Beckers Manipulationstrick selbst einmal ausprobiert Beckers Manipulationssystem ist wohl eines der ganz wenigen Systeme die heute noch Geld in die Kasse spühlen

  4. Very Fascinating! Thank you so much for sharing this informative and beneficial video that can be used in pretty much any business setting whether it be a restaurant, hotel, gas station, or even an online store.

    I however am now going to be consciously noticing when businesses are trying to persuade me, which may have the opposite effect of me paying more, but nonetheless it was still a great video! ^_^

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  6. People are more persuasive if you present it with ethical arguments
    1. Reciprocity
    Obligation to give when you recieve. Gift personalised (for you extra) and unexpected
    2. Scarcity, people want more of where is less from. Tell benefits + what's unique, what they stand to lose
    3. Authorithy, people follow credible, knowledgeable experts (display uniform, diploma), let the receptionist tell the customer first about the credentials of the "salesman"
    4. Consistency, asking/looking for small volumtary, active, public commitments that can be made, before asking a bigger commitment. Asking the patient to write down the apointment on the card in stead of the doctor (helps 18%).
    5. Liking of the asking person, we like people who are simular to us, give us genian conpliments, are cooperative to mutal goals
    6. Concesus, point to what others are already doing

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  8. i want to understand that the small card in the bathroom means that the guest dont use the hotel towels?
    i want to understand what he means when he say reuse ? or she meant that should the guest clean it after use ?
    please tell me about the meaning ????

  9. 10:22 I would think, "Do they really have custom signs and statistics for each room? I wonder what the signs in the other rooms say." And then they would successfully get me to stay there again.

  10. Yeah this used to be called the cheap con and the petty Hustler. Now if you guys try real hard you can perfect these tools of the new trade in the new America man that's pretty Jewish of ya

  11. regarding to authority, how about those cherrie-picking studies lol
    And maybe most of the studies or research in the video is just cherry picking

  12. 1. Reciprocity. We are obliged to give if we have been given something.
    2. Scarcity. If it's scarce, we want it more. Use this by highlighting the Benefits, Uniqueness and Possible Loss.
    3. Authority. We are more likely to comply with a request if it is coming from a perceived authority/expert.
    4. Consistency. We want to be consistent with our past commitments, even if the initial commitment is much smaller.
    5. Liking. We like people who are similar, who give us compliments and who co-operate with us.
    6. Consensus. If others (especially similar others) are doing it, then we are more likely to do it ourselves.

  13. Not interested in the giveaway, but. . .i do want to give praise on a great video. Makes perfect sense. By the way my favorite is the Reciprocity/Liking (Personal) aspects. 👍

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  15. Reciprocity: mints is a bad example, how do we know the mints or "gifts" were the cause of the increase tip? Was there a control group? Also how do we know the servers who used mints weren't just better at their job?

    I believe it works but I just feel like that's a shitty example.

  16. 95% of the people who would have watched this video, watched something else instead because of the lack of a audio cues at the very beginning.

  17. Fabulous information. I knew the one about the towels from a book YES! 50 secrets about the power of persuasion. Another tip is to tell a lie for long enough till people actually believe it: science, politics, food industry, drug industry can use it but even yourself you can use it too. You can tell yourself "I am smart…I am smart…I am smart" or beautiful or likeable or musically talented…or whatever else. If you say this often enough and long enough you will start to believe in it. Let's call it self-persuasion. People who will like this comment are on average 87% smarter and better looking than those who will not like it.

  18. I love this book!

    Influence: The Psychology of Persuasion (2006) by Robert B. Cialdini

    This is interesting, Cialdini writes, "What I'm talking about is pre-suasion, directing their minds to the moment before they experience the content. There's this interesting study. A guy goes to a shopping mall in France. And he tries to get women's phone numbers as they pass various shops so he could call for a date. But in neither of those cases was he very successful. He only got a number 13% of the time. But there was one kind of shop that doubled his success rate when women were passing it, a flower shop. Why? Because flowers put women in the mindset of romance." Wow! I love to learn psychology and the human mind. When I listened to Les Brown, my favorite motivational speaker, he had a list of books he recommended. Top 10 on his list was this book, which was a really fascinating and enlightening read. It reminds me why being a skeptic and a cynic sometimes are so valuable and necessary – particularly in today's world.


  19. Going to a job fair tomorrow with a rag tag thing of a resume so watching this so I can use my persuading powers instead lol

  20. Wow. Now i get it. The reason why i cant convince my mother to quit chemo is because a doctor who is an "authority" on health has told him despite all the explanation i told to my mother that chemo would do more harm than good to her because i have read tons of comments in the internet about people who regret having chemo. Maybe i just give up on convincing my mother to quit chemo because i am just a simple guy who loves to read about natural health remedies on the internet and the doctor has already cast a spell on my mother using scare tactics.

  21. 1. Reciprocity
    People are more persuaded to give when they have received something unexpected as a way to return their gratitude.
    2. Scarcity
    People are more persuaded to buy when the service or good is limited supply.
    3. Authority
    People are more easily persuaded to buy from someone with credentials, even if the credentials being given to them are from someone in the same company.
    4. Consistency
    People are more persuaded to do an action when it’s not much of a stretch from an action they’ve taken previously.
    5. Liking
    People are more easily persuaded to buy from people they like. People like someone that is similar to them, offers genuine compliments, and works toward a similar goal as them.
    6. Consensus
    People will be more persuaded to do something if they are told everyone else is doing it.

  22. If anyone applies this in communication with me, I consider it as a manipulation attempt, and quit the conversation.

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  27. A very compelling explanation of what actually causes people to make a decision. Highly useful in the sales world.

  28. Amazing video. I don't need anyone to validate what you said because I see those behavioral patterns in everyday life.

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