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The Peak-End – What drives customers' memory of an experience?

What moments will have the greatest impact on your customer?

I want you to remember the last time you had a great experience. Maybe it was a great meal at a restaurant, or a flight on an airline. Now think of the last time you had a bad experience – maybe it was an online order that went missing or being charged for the mini bar in your hotel that you definitely didn’t touch. 


What do you remember? Whether good or bad, what springs to mind isn’t the whole experience but snippets of that experience.

 

Our memory of life’s events isn’t a movie reel or a complete catalogue of what we’ve been through, but rather a highlight reel of key moments. And we are hardwired to focus on key moments of an experience; we’re programmed to heavily weight the most emotionally intensive moments of an experience, and the final moments of an experience. This forms the basis of our memory of an experience, and is known as the Peak-End rule.


What’s the implication for customer experience? Well it’s not the experience itself that influences our future behaviour and likelihood to re-engage with a brand, but our memory of the experience. And by understanding which moments matter most to that memory we can make massive strides in improving our customer’s remembered experience by focusing our efforts for greater impact. 


The Peak-End rule 

The Peak-End rule comes from work by Daniel Kahneman, who won the 2002 Nobel Prize in Economics, and his colleague Donald Redelmeier.  In a series of very uncomfortable studies involving people putting their hands in ice buckets or studies with colonoscopy patients having cameras inserted inside their rectum, they were able to demonstrate that:


“The peak-end rule is a psychological heuristic in which people judge an experience largely based on how they felt at its peak (i.e. its most intense point) and at its end, rather than based on the total sum or average of every moment of the experience.”


For example, in Kahneman & Redelmeier’s 1996 study 154 colonoscopy patients were asked to rate their levels of discomfort at 60 sec intervals throughout the procedure, and then asked to retrospectively describe how uncomfortable the procedure was after it had finished. What they found was that the average level of discomfort had no correlation with how uncomfortable they reported the procedure retrospectively. What was relevant was the level of discomfort in the final moments of the procedure, and the highest (peak) level of discomfort. 


In an interesting follow-up, and one with implications for customer experience, Kahneman & Redelmeier did something unusual. They divided a group of colonoscopy patients into two different conditions: one group went through the standard procedure where the camera was immediately removed after an extremely painful procedure, but the second group had the camera remain inside them for an extra three minutes in an uncomfortable but not painful position. The second group, whose experience lasted longer in reality but had less discomfort at the end, evaluated the procedure as being less painful and were more likely to return for subsequent procedures.


A graph with two lines zig zagging, showing how we based experiences at their peak and how they ended.

What does this mean? People don’t evaluate an experience based on some average measure of satisfaction/ happiness/ discomfort. What drives their memory of an experience is the peak levels of emotional intensity (whether good or bad) and how they felt at the end of an experience. And this can be influenced by carefully engineering the experience.


Engineering great peak and end moments

Brands are in a race to build better and better experiences for customers mapping out journeys in a desire to build brand advocates and ensure they’re not pushing away potential customers. And long may it continue. 


But not all moments are created equal, and some brands are more aware of this than others. 


AT&T for example has identified two peak moments that they focus on when customers visit their store – the initial entry to the store, and when they are waiting to speak to someone. And if they miss these moments they know it has a dramatic impact on customer satisfaction – “not gradually but off the cliff” according to AT&T’s President of Retail Sales and Service, Paul Roth. So, their expectation is that a member of staff will greet all customers within 10 feet and 10 seconds of entering the store, and customers names are placed on a list to be served, giving reassurance that they will be seen to in a fair order.

 

For a local example, Air New Zealand’s coffee app in the Koru lounge is often mentioned as an example of great customer experience design. By carefully understanding the customer journey, where there was an opportunity to create an emotional high point, they’ve been able to engineer a moment that has disproportionally affected people’s perception of their journey (a flat white vs 14-hour flight to LA?). While getting everything else in the journey is undoubtably important – it’s this one simple emotional trigger that is being recalled by travelers.


You could also argue that a rock concert is a similar example of a “brand” demonstrating the Peak-End rule. Whether it’s U2, The Foo Fighters or some other big arena band, your memory typically relates to the one or two key songs (peak moments) and the mandatory encore (end moment), building an exceptional memory of getting it right.

 

So, what’s next? Focus your attention of what matters

There’s a clear implication from this rule. Rather than spreading your resources too thin, trying to deliver a uniformly good experience, try creating a smaller number of moments of great experience. Look for an opportunity with your brand, one thing you can engineer (preferably at the end of the experience) to create a moment of delight for a customer.



Best thing, these moments don’t always have to be expensive or resource heavy, as demonstrated by my local café and the design they left on the top of my flat white. It just takes commitment to delivering a moment of splendor at key moments in time.


By Cole Armstrong 15 Mar, 2024
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By Cole Armstrong 19 Jul, 2023
If I asked you to think back about an event, maybe a holiday or your last plane trip, your last dinner out, or a shopping experience, what would you remember? If I asked you to describe the experience, chances are you’d feel pretty confident about your memory, or at least some of the key elements. It turns out though, that confidence you’re feeling - it doesn’t relate to the accuracy of your memory. Faulty memories You’re not losing your mind, it’s just that your mind is playing tricks... sort of. We’ve spent quite a bit of time using eye tracking technology through our client projects. It enables us to see a participant’s behaviour – what they actually see and engage with - and the journeys people take through a physical environment, like a mall or retail setting. One project saw participants navigating a store with eye tracking glasses, getting items off a shopping list. As soon as they’d completed their journey, we asked which way they’d walked. Participants confidently recounted their route, and yet despite having literally just finished their journey, consistently missed out details. In another project we asked focus group participants about an image we’d shown them 20 minutes earlier. This elicited quite a spirited conversation about skin colour and how the illustrator’s choice of using a dark skin colour for all of the characters pointed to the racism of the illustrator and client. The thing was though, the characters weren’t dark skinned. Not one of them. And yet all of the participants convinced themselves this was the case. We’re certainly not the first to have encountered this phenomenon. There’s quite an active scene looking into issues with eyewitness testimony, and under which conditions our memory maybe unduly swayed or prone to errors. As you can imagine, the consequences of this could be huge. How can we stop getting it wrong? We’re not saying that our memories are always wrong – clearly that’s not the case! But there’s a rhyme and reason behind how our memory operates – both for good and bad. Our brains are BUSY. It’s like a hamster wheel going full on 24/7. Even when sleeping our brain is taking stock of the day, filing away moments into short and long-term memory. In order to look after us, our brains have to prioritise its resources, and it essentially takes shortcuts wherever possible, driving the same way to work each day, ordering the same coffee and so on. Imagine the fatigue we would face if we had to make every decision and action consciously, rather than letting our brains run the show. Which moments matter? So when our brain – a lazy but efficient workaholic – is sorting through events and the happenings of our day, it throws out the mundane, peripheral information it deems unimportant. It instead focuses on creating a highlight reel, and takes the moment of the events and experiences that were the most emotionally intensive, and the final moment. The concept is known as The Peak-End rule, and comes from Daniel Kahneman and his colleague Donald Redelmeier. Their 1996 study, which I am very pleased to not have been a participant in, involved 154 colonoscopy patients rating their level of discomfort at 60-second intervals throughout the procedure, as well as being asked to retrospectively describe how uncomfortable the procedure was. The level of discomfort during the procedure had no correlation to the discomfort they reported retrospectively. As an aside, they followed-up this study with yet more colonoscopy patients, who were split into two groups. One group had the standard procedure and experience of the camera being somewhat painfully removed, and the other had an amended experience that lasted three minutes longer, but which the camera removal was more uncomfortable than painful. The second group – with a longer procedure but less discomfort in the final moments – rated the procedure as less painful than the first group and were more likely to return for subsequent procedures. What was relevant was the peak level of discomfort experienced, as well as the level of discomfort in the final, end moments of the procedure. So what does this tell us? Firstly, that our memory is more fallible than we’d like to realise, more often made up of a series of stitched together moments and thoughts that can be revised and reinterpreted after the fact. Here’s an example - one of the best flights I’ve had was on Air New Zealand to Sydney – the first time we’d flown with my then-infant daughter (you can imagine our nerves!). At the end of the flight we apologised to the man next to us who’d (somehow) been working the whole 3.5 hours. We were suitably self-conscious at the amount of screaming he’d been subjected to but were greatly surprised at how nice he was – telling us that she’d been great, and how his (now teenage) children had subjected him through worse. Then some of the other passengers near us congratulated us on surviving a flight with an infant and how good a flyer she’d been – alongside the cabin staff who were making faces at our daughter to get her to laugh. It's honestly one of the best flights I remember – but clearly it wasn’t that pleasant at the time! The Peak-End rule in action – our actual and remembered experiences diverting wildly. How to apply these learnings to your work Don’t rely on people providing an accurate testimony of their experience. It’s more important to look at what a customer does vs what they say they do. When reviewing a process, journey or customer experience, focus on the moments that matter – the peak emotional moment and the final moment. This provides direction, stopping you from spreading your resources too thin and helping concentrate efforts on the moments most likely to have an impact. Be creative when designing experiences. Because our remembered experience is more important than our actual experience, you have a unique opportunity where you can creatively leave customers with an experience perhaps better than what they had… If you know there’s a frustration or issue during a process, while working on a fix for that, make sure your final moment knocks their socks off.
08 Nov, 2022
JCDecaux is one of the largest Out-of-Home businesses worldwide; in New Zealand it specialises in high quality Large Format and Airport touchpoints. JCDecaux is committed to delivering research-led validation to its partners regarding Out-of-Home effectiveness and looks for partners who can deliver neuro or behavioural methodologies that can deliver on this objective.
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