The Design Psychologist | Psychology for UX, Product, Service, Instructional, Interior, and Game Designers
Published by Thomas Watkins
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Welcome to The Design Psychologist, a podcast where we explore the intersection of psychology and design. The show is hosted by Thomas Watkins, a design psychologist who has spent years applying behavioral science principles to the creation of digital products. We sit down with a variety of experts who apply psychology in different ways to the design of the world around us. Thomas uses his expertise to guide conversations that provide practical advice while illuminating the theory behind why designs succeed. Tune in if you are a design practitioner who seeks to understand your work on a deeper level and craft experiences that are intuitive, effective, and delightful.
Season 1 Finale: Design for a Better World (w/ Don Norman)
Go to thedesignpsychologist.substack.com to get episode summaries right in your inbox so you can easily reference, save, and apply what you learn. What happens when human-centered design is no longer enough? Designers are trained to make things easier to use—but what if ease and elegance are no longer the point? What if the systems we need to change go far beyond screens and interfaces, touching global structures and collective futures? Our guest, Don Norman, coined the term "Norman Door" to describe a door that gives the wrong signal about how to open it—pull vs. push—highlighting poor affordances and feedback in everyday objects. This simple yet profound observation helped launch a new era of design awareness, making him one of the most influential voices in the psychology of design. His decades-long career has shaped the fields of human-computer interaction, design thinking, and usability. He is the author of the seminal book The Design of Everyday Things , and now, Design for a Better World , a work that challenges us to design for the full complexity of human and planetary needs. WHAT WE COVER IN THIS EPISODE What makes some errors easy to catch and others dangerously hard to detect How decades of design decisions have shaped today’s global challenges What it means to shift from human-centered to humanity-centered design How co-design empowers communities over outside experts The surprising design lessons learned from nuclear accidents, faucets, and guinea pigs The role of failure in progress—and why we should embrace it KEY TAKEAWAYS Designing for ease is not enough—today’s challenges demand designing for systems and long-term impact . User-centered design can fall short when it fails to consider environmental, societal, and ethical dimensions. Human error is not always a failure of attention—it’s often a byproduct of bad design. To scale real change, we need dandelion models —spreading seeds of knowledge and training others to do the same. Participatory design ensures that communities are not passive recipients but active creators of their own solutions. The service economy offers a path toward sustainability—if companies rethink profit and longevity. The future of design psychology isn’t about better buttons—it’s about understanding people so deeply that we can redesign society itself. Find The Design Psychologist on your favorite podcasting platforms (or share this link with a friend): https://designpsychologist.buzzsprout.com/2395044/follow
The Power of Social Proof (Part 2): 18 Methods Across 5 Psychological Drivers
Go to thedesignpsychologist.substack.com to get episode summaries right in your inbox so you can easily reference, save, and apply what you learn. Why does social proof work? And, what are some practical tips on how to use it to create better designs? In part one of these Social Proof episodes, we started with the foundations of social psychology. We looked at the history, key studies, and some helpful frameworks. Now in part two, we’re picking up where we left off—at the five-point framework I mentioned at the end of Part One. This is where things get practical. We’ll connect the social psychology research with actual strategies for implementing social proof. We’ll explore how social proof methods like testimonials, expert endorsements, and more, have an impact on our psychology, in particular, when we’re making buying decisions. By the end, you’ll have a framework to decode social proof and a toolkit to apply it thoughtfully. What You’ll Learn Five core psychological drivers— including our need to fit in, our fear of missing out, and so on How social proof methods like testimonials, expert endorsements, and more, have an impact on our psychology, in particular, when we’re making buying decisions. A framework to decode social proof and a toolkit to apply it thoughtfully. Key Takeaways We relate to other humans, and shared experiences matter. We want to fit in—and social proof taps into that drive. We trust experts when making decisions under uncertainty. We’re motivated by FOMO (fear of missing out). Imagination helps us take action when we see others doing the same. These drivers explain why social proof works. We respond to stories, signals, and shared experiences because they tap into how our minds are wired. We also explored how to use social proof in design. Whether it’s testimonials, expert endorsements, client logos, or user-generated content, each method works best when it feels real, relevant, and respectful. The goal isn’t to trick users—it’s to guide them with clarity, trust, and connection. Find The Design Psychologist on your favorite podcasting platforms (or share this link with a friend): https://designpsychologist.buzzsprout.com/2395044/follow
The Power of Social Proof (Part 1)
Go to thedesignpsychologist.substack.com to get episode summaries right in your inbox so you can easily reference, save, and apply what you learn. Have you ever been in a crowd where no one clapped until one brave soul started the applause? Or walked past two restaurants—one bustling with a line out the door, the other nearly empty—and felt pulled toward the busy one? These small, everyday moments reveal something big: we are profoundly influenced by the people around us, often without even realizing it. This episode kicks off a two-part deep dive into social proof , one of the most powerful concepts in social psychology. Over a century of research shows that humans are wired to pick up on social cues, and these cues quietly shape our behavior, decisions, and preferences. In Part 1, you’ll learn: Why simply being around others can change how we perform. How reviews, testimonials, and follower counts tap directly into our social wiring. The fascinating story of a 19th-century psychology professor who first noticed how cyclists behaved differently when riding together. How social proof research has evolved from early experiments in social psychology to today’s social neuroscience. The key psychological principles that explain why social proof works. This episode is about more than just marketing or design tricks—it’s about understanding the deep human need to notice, follow, and be influenced by others. By grasping the science, you’ll build a foundation for creating products, experiences, and messages that feel natural, trustworthy, and even irresistible. What’s next: In Part 2, we’ll move from theory to practice. You’ll get concrete methods and examples to put social proof to work in your own designs and projects. Find The Design Psychologist on your favorite podcasting platforms (or share this link with a friend): https://designpsychologist.buzzsprout.com/2395044/follow
Align Before Design: The Psychology of Strategic Alignment (with Tamara Adlin)
Get episode summaries right in your inbox so you can easily reference, save, and apply what you learn: thedesignpsychologist.substack.com Why do so many user personas fail in practice, and what can we do about it? Have you ever worked on a team where everyone had a different idea of who the user was? Or watched a beautifully crafted persona become ignored or misused? You're not alone. In this episode, we explore why traditional personas often fall short—and how alignment personas can change everything. You'll learn how to cut through organizational chaos, align stakeholders, and get your team moving in the same direction. You'll also discover a fast, psychology-informed method to surface assumptions, prioritize goals, and build products that stay focused on what really matters. Meet Our Guest: Tamara Adlin Tamara Adlin is a UX legend. She's the co-author of The Persona Lifecycle and The Essential Persona Lifecycle , played a key role in shaping Amazon's UX strategy, and now leads the charge with her new concept: alignment personas. Her work helps teams avoid derailment, align faster, and make smarter design decisions. She also hosts the podcast Corporate Underpants , tackling the organizational dynamics that show up in bad products. What We Cover: Why personas started off strong—and where they went wrong What makes alignment personas radically different and more effective How executives act like "tornadoes" and what that means for your designs Why assumptions are more powerful than data—and what to do about it A five-step alignment process you can run in a single workshop Practical tools like the strategy wedge and purpose slide How to use design psychology on your own team to influence strategy Key Takeaways: Most personas fail because they gather dust, get misused, or don’t align with actual business priorities. Executives often bring strong, unspoken assumptions. Unless you surface them, those assumptions will quietly shape everything your team builds. Data alone doesn’t change minds. But alignment personas help teams reveal what they believe—and align around it. You don’t need months of research. Just five conversations can expose misalignment, clarify direction, and build shared understanding. Design psychology isn’t just for users. It’s a powerful tool for navigating organizations, aligning teams, and protecting your product from chaos. This episode is packed with real talk, powerful analogies (Greek gods and all), and methods you can use immediately. If you're ready to turn misalignment into momentum, this conversation with Tamara Adlin is your guide. Find The Design Psychologist on your favorite podcasting platforms (or share this link with a friend): https://designpsychologist.buzzsprout.com/2395044/follow
Why Games Work: Emotional Arcs, Flow States, and Meaningful Play (with Jesse Schell)
Why are games so deeply engaging? What psychological principles make game design such a powerful tool for shaping attention, emotion, and learning? Game design is not a niche skill. It's one of the most refined disciplines we have for designing attention, emotion, and motivation. If you're designing anything for people, game design can sharpen your craft. This episode reveals how the craft of game design can teach us to build more immersive, emotionally resonant experiences. Whether you're designing products, learning experiences, or interactive systems, the lessons from games can help you design for joy, focus, and transformation. About Our Guest: Jesse Schell is a legendary figure in game design. He’s designed games for Disney, pioneered virtual reality, built theme park attractions, created award-winning educational games, and teaches at Carnegie Mellon’s Entertainment Technology Center. His book, The Art of Game Design , is one of the most widely recommended texts in the field. What You'll Hear: Why game designers focus on creating experiences, not just products The surprising power of introspection in understanding users How "toy-first" thinking leads to more meaningful play The science behind flow and how it keeps players engaged How to use emotional arcs and tension-release patterns in your designs Why gamification often fails—and what to do instead The psychology of challenge, curiosity, and fun What designers in other fields can borrow from games Questions Explored: What is the difference between a toy and a game? How do we design for emotional resonance? Can introspection really be a reliable design method? What does it mean to balance choices and desires? Why is iteration crucial to creating fun? Key Takeaways: Games are machines for generating experiences. That means the psychology of the player is central to every design decision. Designers must understand not just what people do—but why they feel, focus, and engage. Play is not trivial. It's one of the most powerful modes of learning and transformation. Flow, balance, and emotional arcs aren't just game design tools—they're experience design tools. To make things more engaging, don’t just "gamify"—design for meaningful engagement. Find The Design Psychologist on your favorite podcasting platforms (or share this link with a friend): https://designpsychologist.buzzsprout.com/2395044/follow
Advance Without Alienating: How MAYA Drives Adoption
What is the sweet spot between new and familiar, and how do you design for it? Create products that feel groundbreaking and instantly intuitive by applying the psychology of the MAYA Principle. By unpacking how humans respond to familiarity and novelty, you’ll gain practical guidance for designing experiences that spark excitement without overwhelming users. WHAT WE COVER IN THIS EPISODE What is the MAYA Principle, and why does it matter for product and experience design? How do familiarity and novelty interact to shape user adoption? Why did products like the iPad feel revolutionary and intuitive to use? When should you release a big innovation versus gradually introducing features? How psychological barriers like loss aversion affect how people receive new ideas. How designers can pace innovation to keep users comfortable and engaged. KEY TAKEAWAYS The MAYA Principle stands for "Most Advanced Yet Acceptable"—a formula for balancing innovation with usability. People adopt new ideas more readily when they resemble something they already understand. Successful products often anchor new concepts in familiar mental models (e.g., Uber reimagined the taxi). Understand your audience: tech-savvy users tolerate faster change than general users. Manage the speed of innovation—disruptive or incremental—based on what your users can handle. Incorporate user feedback early and often to gauge readiness and reduce risk. Frame change as a gain , not a loss, to overcome psychological resistance like loss aversion. Design psychology empowers us to bridge users into the future—delighting without alienating them.
Frontstage, Backstage: How Service Design Really Works (with Marc Stickdorn)
What’s the real impact of service design on customer experiences? In this episode of The Design Psychologist, host Thomas talks with service design expert Marc Stickdorn, PhD, author of "This is Service Design Doing," about the evolution and holistic nature of service design. They discuss the importance of community involvement and collaboration in shaping effective strategies and enhancing user interactions across various touchpoints. WHAT WE COVER IN THIS EPISODE: - The role of community contributions in redefining service design. - Examples of service design addressing real-world challenges, like improving grocery store experiences. - Integrating digital transformation for cohesive customer interactions. - Strategies to bridge organizational silos for better engagement. - The importance of prototyping and feedback in the iterative design process. - Adapting service design methodologies to navigate a VUCA (Volatility, Uncertainty, Complexity, and Ambiguity) landscape. Find The Design Psychologist on your favorite podcasting platforms (or share this link with a friend): https://designpsychologist.buzzsprout.com/2395044/follow
The Peak-End Rule in Design: What We Take Away
What shapes the memory of an experience, and how can designers use that insight to create better, more human-centered products? Design more memorable and emotionally resonant experiences by understanding how people actually remember what they go through. It turns out we do not remember experiences by their length, but by their intensity and how they end. By uncovering the psychological principle known as the peak-end rule, you will learn how to shape experiences that stand out in people’s minds, leading to better outcomes and more impactful design. WHAT WE COVER IN THIS EPISODE Why do we forget most of what we live through? What is the peak-end rule, and how does it influence memory? Why do people sometimes prefer longer discomfort over shorter pain? Should designers focus on the peaks and endings of an experience instead of the whole journey? Which types of experiences are a poor fit for the peak-end rule? How do memory and actual experience compare when it comes to decision-making? What are the two different selves described in happiness research, and how do they shape our reactions? KEY TAKEAWAYS The peak-end rule suggests we remember the most intense moment and the ending of an experience. Most of the rest fades from memory. Designers cannot control every moment, but they can influence how an experience is remembered. This principle is especially helpful when designing uncomfortable or tedious processes. A well-placed positive moment or thoughtful ending can shift how the whole experience is recalled. Duration neglect means people do not remember how long something lasted, only how it felt at key moments. The remembering self often outweighs the experiencing self when people decide whether to repeat an experience. Linear experiences like onboarding flows or customer service calls are ideal candidates for applying the peak-end rule. More complex or non-linear experiences, such as websites or productivity apps, may require different strategies.
Less Load, More Learning: First Principles of Cognitive Load Theory (with John Sweller)
What’s the best way to choose how you’ll teach something so it actually sticks? Design your next lesson so learners don’t just follow along—they understand, remember, and apply their new skills. By grounding your instruction in Cognitive Load Theory, you’ll gain a practical compass for sequencing content, trimming unnecessary load, and accelerating real mastery. Our guest, Dr. John Sweller, pioneered Cognitive Load Theory during more than four decades as Professor of Educational Psychology at the University of New South Wales. His research has reshaped classrooms, training programs, and learning technologies worldwide. WHAT WE COVER IN THIS EPISODE Why learners often absorb less when they start by solving problems—and what to do instead The expertise‑reversal effect: why novices and experts need opposite instructional treatments How to recognize when learners look active but aren’t actually learning The modality, split‑attention, and redundancy effects—and how they guide interface and content design Practical ways to balance intrinsic, extraneous, and germane load so learners stay challenged without being overwhelmed Find The Design Psychologist on your favorite podcasting platforms (or share this link with a friend): https://designpsychologist.buzzsprout.com/2395044/follow
Designing with Tension: What the Zeigarnik Effect Reveals About Memory and Momentum
Have you ever noticed how an unfinished task — or a cliffhanger at the end of a show — keeps tugging at your attention? How can the Zeigarnik effect’s lingering cognitive tension help us design products, services, and experiences that people actually come back to and complete? When you learn to harness the motivational pull of “unfinished business,” you can turn mundane flows into engaging journeys and guide users toward the outcomes that matter. We explore why interruptions strengthen memory, and how designers can translate that insight into progress indicators, cliffhangers, and gentle nudges that drive completion. WHAT WE COVER IN THIS EPISODE • What exactly is the Zeigarnik effect, and how did a Soviet psychologist discover it? • Why do incomplete or interrupted tasks stay fresher in memory than those we’ve finished? • How can we use progress bars, checklists, and multi‑step flows to leverage this effect? • Where do cliffhangers shine in learning experiences and content design? • When does the tension of “unfinished” backfire — and how can we avoid creating frustration? • Practical tips for highlighting next steps, surfacing partially completed work, and prompting return visits. KEY TAKEAWAYS • Incomplete tasks create cognitive tension that keeps the goal top‑of‑mind until it’s resolved. • Surface that tension: show users where they left off, how close they are to done, or what’s still missing. • Use visual progress cues (percentages, steps, checkmarks) to make completion feel imminent and achievable. • Strategic interruptions — like well‑placed cliffhangers or mid‑flow saves — can boost later recall and re‑engagement. • Balance is key: too much friction or ambiguity can turn motivating tension into annoyance.
Closing the Knowing-Doing Gap: Designing for Real Behavior Change (with Julie Dirksen)
Why is it so hard to change behavior—even when people already know exactly what to do? Design your next learning experience so people don’t just understand what to do— they actually do it. By uncovering the psychology behind the knowing–doing gap, you’ll gain practical tools to move your audience from passive understanding to sustained action. Our guest, Julie Dirksen, has spent two decades helping organizations design training and products that lead to measurable behavior change. WHAT WE COVER IN THIS EPISODE Why does information alone rarely shift behavior? What alternative ingredients turn knowledge into action? How do motivation, context, and habit interact? What is the elephant–rider model, and how does it reframe design? Which practical tactics help learners “walk new paths” instead of retreading old ones? KEY TAKEAWAYS Behavior change is not the same as knowledge transfer—information is necessary but never sufficient. Design for the elephant (emotions and habits) as well as the rider (rational mind). Reduce friction and increase repetition so the desired action is easier than the default. Shape context—alter environments so the right choice is the obvious choice. Layer motivation and support with rewards, social proof, and timely prompts. Find The Design Psychologist on your favorite podcasting platforms (or share this link with a friend): https://designpsychologist.buzzsprout.com/2395044/follow
Order Matters—But Not the Way You Think: How Serial Position Gets Misused
In this episode, we uncover how the order in which information is presented affects what users remember—and what they forget. From the “primacy effect” that gives early items a cognitive boost, to the “recency effect” that gives the last ones staying power, you'll learn how sequence can make or break a design. We explore: Why we remember the first and last items in a list better than the middle ones Why many designers mistakenly apply memory principles to visual design when they should be focusing on attention The difference between designing for memory and designing for attention Whether you're designing a pitch, a product tour, or just organizing content, understanding the serial position effect helps you make your message stick where it matters most.
From Vibes to Variables: How We’re Measuring the Unmeasurable in UX (with Bill Albert)
Why is it so hard to know whether people want to use what we design—not just whether they can ? Design research can (and should) go far beyond basic task success. Our guest Bill Albert joins us to show how to expand our measurement toolbox. By learning to measure desirability, emotion, and true engagement, we unlock clearer insights, align teams faster, and invest only in ideas that will actually resonate. WHAT WE COVER IN THIS EPISODE Usability vs. desirability — why the distinction matters Quantifying emotion in UX: from frustration to delight Defining “engagement” (and the right ways to track it) Physiological tools in practice: galvanic skin response & eye-tracking Experience economy metrics — what today’s products must capture Find The Design Psychologist on your favorite podcasting platforms (or share this link with a friend): https://designpsychologist.buzzsprout.com/2395044/follow
The Shape of Choice: What Hick’s Law Really Reveals About Decision Time
What happens when your design asks users to make too many choices? In this solo episode, we explore a deceptively simple principle with massive implications for user experience: Hick’s Law. This law explains why more options mean more decision time—and why that’s not always a good thing. From cluttered navigation to bloated dropdowns, we’ll break down how cognitive overload quietly slows users down. You'll learn when reducing choices helps, when it hurts, and how to use psychological insights to guide your interface design decisions. By understanding Hick’s Law, you’ll learn how to make your interface feel faster, smarter, and more intuitive to use.
How to Visualize the Invisible: Metaphors, Models, and Meaning (with Stephen P. Anderson)
Explaining an abstract idea can feel easy—until you put pen to paper. In this episode, our host sits down with Stephen P. Anderson to unpack the craft of turning complex concepts into clear, memorable visuals. Together they dig into the challenges of sketching an org chart, mapping a process, or nailing a scientific metaphor—and ask what really separates a helpful illustration from a confusing one. You’ll hear them explore: Why visualizing a concept (not just data) often stalls once you start drawing Whether effective illustration relies on a repeatable method or innate talent How to test if you’ve chosen the right metaphor—and what happens if you haven’t Ways visual collaboration can pull teams out of creative ruts How embodied cognition reframes our approach to concept visualization By the end, you’ll have practical, psychologically informed questions to guide your next sketch—so your ideas land the way you intend. Find The Design Psychologist on your favorite podcasting platforms (or share this link with a friend): https://designpsychologist.buzzsprout.com/2395044/follow
How Well Do Our Words Reflect Our Inside World? A psychological perspective on the limits of self-report, introspection, and understanding the human mind
How much can you trust what users tell you? In this solo episode, we dive into one of the most slippery yet essential tools in UX research: self-reporting. From interviews to surveys, self-reports are everywhere—but they come with hidden psychological traps. We explore: Why self-reported data can be both useful and misleading The psychological reasons people often misrepresent their own behavior When to trust what users say—and when to dig deeper The subtle difference between described and observed behavior If you’ve ever relied on user quotes to justify a design decision—or been burned by data that didn’t translate to real-world outcomes—this episode will give you a sharper lens for interpreting what users say versus what they do . Tune in to sharpen your research instincts and make your design decisions more psychologically grounded.
Disruptive by Design: Uncovering Game-Changing Insights (with Larry Marine)
Ever wonder how certain products feel inevitable the moment they appear—rearranging entire markets overnight? In this episode of The Design Psychologist , Thomas sits down with UX pioneer Larry Marine to unpack the mechanics of truly disruptive research—the kind that yields insights so fundamental they can’t be unseen. Most teams unknowingly skip a handful of critical research steps, blinding themselves to the knowledge that changes everything. Larry shows us how treating users, tasks, and entire processes as flows of knowledge reframes both what you look for and what you ultimately build. Along the way we probe why familiar tools like personas sometimes help—and sometimes hurt—and how principles from cognitive science give sharper edges to every question we ask. 🔍 You’ll learn What makes research “disruptive.” Why some methods surface game-changing insights while standard approaches miss them. The critical steps most teams skip. How a small shift early on can rewrite both your findings and your final design. Knowledge-centric mapping. Viewing users and processes through the lens of knowledge—revealing needs that action-based models overlook. Where personas really belong. When they clarify design decisions and when they get in the way. Cognitive science in practice. Concrete ways to align products with how people actually think and behave. A self-audit toolkit. Practical prompts to evaluate (and radically improve) your current research workflow. Whether you’re launching a start-up or steering a mature product team, this conversation arms you with a sharper lens and actionable tools to uncover deeper, more market-shaking insights—before someone else does. Find The Design Psychologist on your favorite podcasting platforms (or share this link with a friend): https://designpsychologist.buzzsprout.com/2395044/follow
The Why Behind Sample Size: How Many People Do You Really Need to Test With?
How many participants do you need to test in order to make valid research claims? In this episode, we dive deep into the science and psychology behind sample sizes in user testing. Whether you're working with five users or five hundred, the number you choose can shape the story your research tells—and how credible your findings appear to stakeholders. Why sample size is one of the most misunderstood elements in product research The psychological impact of “too few” vs. “just enough” users in high-stakes design reviews Whether the popular idea that "you only need to test five users" is a myth or a useful research guideline How to determine the right number of participants based on your research goals By the end of this episode, you’ll have a clearer, more confident approach to choosing sample sizes. This will help you create better, more intuitive, and scientifically sound designs. Find The Design Psychologist on your favorite podcasting platforms (or share this link with a friend): https://designpsychologist.buzzsprout.com/2395044/follow
How to Decode Conversation: A Paradigm Shift in Qualitative Insight and Human Understanding (with Indi Young)
In this episode of The Design Psychologist , we dive deep into the world of qualitative research and human-centered design with legendary UX thinker Indi Young. If you've ever felt like your user interviews only skim the surface—or if you've relied too heavily on personas—you might be missing the most powerful insights. Indi joins us to explore how deep, non-judgmental listening can revolutionize your understanding of users and, ultimately, your design outcomes. Together, we tackle questions like: What is deep listening , and why is it essential in design research? Why do traditional interviews often fail to uncover what truly drives user behavior? What are thinking styles , and how are they more effective than personas? How can designers move from interpreting behavior to understanding internal reasoning? By the end of this episode, you’ll see user research—and your role as a designer—through a completely new lens. You'll be equipped to listen more deeply, think more critically, and create more human-centered solutions. Find The Design Psychologist on your favorite podcasting platforms (or share this link with a friend): https://designpsychologist.buzzsprout.com/2395044/follow
Why It Feels Right: Affordance and the Mind’s Hidden Expectations
Why do some products feel natural the moment you touch them—while others are baffling from the start? In this episode, we explore the psychology of affordances —those subtle cues that tell us what to do next, without saying a word. From door handles to digital apps, we break down how great design speaks directly to human intuition. You’ll learn: The psychological principles that make interfaces feel “just right” What Don Norman meant by affordances, signifiers, and anti-affordances How to avoid common design traps that confuse users Real-world examples that reveal the power of creating an intuitive user experience By the end of this episode, you’ll start seeing design in a whole new way—and be ready to create products that people instantly understand.
