Positive Deviance

Most problem-solving starts by cataloguing what's broken. Positive deviance inverts that logic. Instead of asking why so many people are struggling, it asks a different question: why are a small number of people—facing the exact same constraints—quietly thriving? And what can everyone else learn from them?

What Is Positive Deviance?

Positive deviance is a framework built on a deceptively simple premise: in almost every group facing a shared challenge, a handful of people find better solutions using the same resources as everyone else.

These individuals—called positive deviants—don't succeed because they have more money, more education, or more support. They succeed because of specific behaviors, habits, or practices they've developed. Because those behaviors are learnable, they can be identified, shared, and scaled.

The framework rests on three core assumptions:

• Solutions already exist inside communities facing problems.
• Positive deviants are already practicing those solutions, often without realizing it.
• Lasting change is more likely when a community discovers its own solutions rather than importing them from outside.

That final point is what separates positive deviance from most improvement efforts. It doesn't bring answers in from elsewhere. It surfaces answers that are already there.

Where the Idea Came From

The clearest origin story begins in rural Vietnam in 1990. Jerry and Monique Sternin, working with Save the Children, arrived to address widespread childhood malnutrition. They had six months, limited resources, and a problem affecting villages across the country.

Rather than designing an external nutrition program, they asked a different question: Are there any families in the poorest villages where young children are well-nourished despite having the same poverty and limited food access as their neighbors?

There were. A small group of mothers were raising healthy children—not through special resources, but through specific behaviors others weren't practicing. They fed their children tiny shrimp, crabs, and sweet potato greens—foods available to everyone but widely considered unsuitable for young children. They fed smaller portions more frequently throughout the day. They continued feeding sick children rather than withholding food during illness.

These weren't radical interventions. They were quiet, practical behaviors hiding in plain sight. Within two years, malnutrition in the program areas had fallen markedly. The Sternins hadn't imported a solution. They helped a community find one it already had.

Jerry Sternin later described the experience as a shift from deficit thinking—cataloguing what's missing—to asset thinking: looking for what's already working. He and Monique formalized the methodology and later applied it to hospital-acquired infections, education, and other complex social challenges.

Why "Deviant" Is a Compliment Here

The word deviant carries baggage. In everyday use, it suggests behavior that falls outside acceptable norms in a troubling way. Positive deviance reclaims the term's statistical meaning: a deviation from the average. Nothing more charged than that.

A positive deviant isn't a rule-breaker in any moral sense. They're an outlier whose results sit measurably above the norm—using the same inputs everyone else has. The deviance is directional: upward, not downward.

This reframing removes judgment from the conversation. It shifts the question from "what's wrong with most people?" to "what's right about a few—and how do we share that?" It also challenges a deeply held assumption: that exceptional outcomes require exceptional resources. Positive deviance says otherwise.

How the Positive Deviance Framework Works

The methodology, developed by the Sternins and refined over decades of practice, follows a structured discovery process. The steps below reflect how it's been applied across public health, organizational change, and community development.

1. Define the problem and community precisely. "Children under five are malnourished in this village" is more useful than a vague regional statement. Specificity determines whether you can find meaningful outliers.
2. Identify positive deviants within the same context. Look for individuals with the same socioeconomic conditions, the same access to resources, the same environmental constraints—who are nonetheless doing measurably better on the defined problem.
3. Study their behaviors, not their personalities. Ask what they actually do differently. Not "they're more disciplined" or "they care more." Look for specific, concrete, observable practices.
4. Let the community discover the solution. External experts presenting findings in a report doesn't work as well as community members watching their peers demonstrate behaviors firsthand. The Sternins called this "learning by doing"—knowledge that gets into the body, not just the mind.
5. Scale through social proof and practice. Solutions spread through demonstration. People adopt behaviors they see their neighbors and peers practicing more readily than behaviors prescribed by outside authorities.

The essential distinction: positive deviance isn't a program delivered from outside. It's a discovery process that unfolds from within. That's what makes change durable.

Where Positive Deviance Gets Applied

The framework began in public health but now shows up across a wide range of fields.

Healthcare. Hospitals have used positive deviance to reduce hospital-acquired infection rates—including MRSA—by identifying units with unusually low infection numbers and studying what staff there were actually doing. Rather than mandating new protocols, they surfaced what was already working on the floor and spread it laterally across the organization.

Education. Schools have applied it to improve graduation rates and literacy outcomes. Researchers identified teachers or entire schools with unexpectedly strong retention despite serving the same student demographics as struggling schools nearby. Their specific practices then became training models.

Organizations. Change management practitioners have used positive deviance to address team performance, employee retention, and adaptation to change. The question is always the same: who in this organization is doing this well despite having the same constraints—and what specifically are they doing?

Community development. Beyond Vietnam, the framework has been applied globally—reducing female genital cutting in Egypt, preventing child trafficking in Myanmar, and improving food security in sub-Saharan Africa. In each case, the starting point was finding the local outlier and understanding what they know.

Personal growth. This angle is often overlooked. Positive deviance thinking works at the individual level too. If you're trying to build a consistent sleep routine, you don't need an app or a protocol designed for someone else's life. You need to find two or three real people in your life—with similar schedules, similar demands, similar constraints—who actually sleep well, and ask them what a typical evening genuinely looks like.

Positive Deviance vs. Best Practices

These two approaches sound similar. They're not.

Best practices are typically imported—identified in one context and delivered to another. They assume that what worked somewhere else will work here. They're top-down by design, often arriving as mandates from leadership, government agencies, or outside consultants.

Positive deviance is always local. Solutions come from inside the community, organization, or system facing the problem. They're context-specific, already proven in actual conditions people face, and championed by credible peers—not outside experts.

Research suggests this difference matters for how durably change takes hold. When people discover solutions through their own community's examples—watching someone like them do something that works—adoption tends to be more sustainable than when solutions arrive from authority. The source of an insight shapes how much people trust it and whether they use it.

Neither approach is always right. But for deep, behavior-level change in complex real-world contexts, positive deviance has a track record that top-down programs often struggle to match.

How to Identify a Positive Deviant

The core question is always this: who has the same constraints and gets better results—and why?

You're not looking for the most talented, most motivated, or most-resourced person. You're looking for someone embedded in the same difficult context who is quietly succeeding. Here's what to look for:

• They're genuinely operating under the same constraints as peers—same neighborhood, organization, income level, or life stage
• Their results are measurably better, not just perceived as better or talked about as better
• They often can't fully explain what they do differently ("I just always did it this way")
• Their behaviors are concrete and observable—not attributed to vague traits like discipline or willpower
• Other people can replicate what they do once they learn it specifically enough

That last point matters most. Positive deviant behaviors are transferable. The goal isn't admiration. It's understanding—and then spreading what works.

Applying Positive Deviance to Your Own Life

You don't need to run a community health project to use this thinking. Here's a practical personal version.

1. Name one specific challenge. Be concrete. Not "I want to be healthier" but "I want to exercise consistently three times a week, even during demanding work weeks."
2. Find your local positive deviants. Look in your actual social environment—people with similar schedules, family demands, and energy constraints who are doing this consistently. Neighbors, coworkers, family members. Skip content designed for someone living a different life.
3. Ask for description, not advice. "What does a typical week look like for you?" tends to surface more useful insight than "how do you stay motivated?" You want behaviors, not principles.
4. Look for the small, specific differences. The behaviors that explain the gap are usually in the details—when they schedule things, how they handle disruption, what they do the morning after they miss a day. The headline answer isn't usually where the insight lives.
5. Try one behavior at a time. Adopt the most transferable practice first and give it enough time to assess honestly before adding more.
6. Recognize when you become the positive deviant. Once something works for you, you become a resource for others facing the same challenge. Sharing what you found is how the process spreads.

The Mindset Shift That Makes It Work

Positive deviance requires a real change in orientation. Most of us—and most institutions—default to deficit thinking: cataloguing what's wrong, who's failing, what resources are missing. It's a natural starting point. Problems are visible. Gaps are measurable.

The shift is toward asset thinking: looking first at what's already working, who's already succeeding, and what strengths or practices already exist within a system that aren't being fully used.

This isn't optimism as performance. It doesn't pretend problems don't exist—it starts by naming them precisely. The distinction is in what comes next: instead of immediately reaching outward for solutions, it asks whether the answer might already be here, practiced quietly by someone in this same situation.

Psychologically, this connects to broader research on strengths-based approaches and social learning. When people see their own community members demonstrating that a problem is solvable—not a distant case study, but a neighbor or colleague they know—it tends to shift what feels possible. That shift is often what turns awareness into action.

If you've ever watched certain people navigate challenges that stop others cold and wondered what they know that others don't—positive deviance is the structured answer to that question. They're not lucky. They're not superhuman. They're doing specific, learnable things. You just have to find them and ask.

Frequently Asked Questions

What is positive deviance in simple terms?

Positive deviance is the practice of finding people who succeed despite facing the same constraints as everyone else—and then learning what they do differently. The core insight: solutions to problems often already exist inside the community experiencing them, practiced quietly by a small number of outliers.

Who developed the positive deviance approach?

The methodology was developed and popularized by Jerry and Monique Sternin while working with Save the Children in Vietnam in the early 1990s. The statistical concept of positive deviance is older, but the Sternins turned it into an applied change framework—later formalized in collaboration with researcher Richard Pascale.

What is the most famous positive deviance example?

The Vietnam malnutrition case is the most widely cited. In villages where childhood malnutrition was severe, the Sternins identified a small number of mothers raising healthy children on the same limited resources as everyone else. The behavioral differences they practiced—specific food choices and feeding patterns—were shared community-wide, and malnutrition rates fell significantly within two years.

How is positive deviance different from a best practice?

Best practices are typically identified elsewhere and imported into a new context. Positive deviance solutions are discovered inside the community facing the problem. They're already proven in actual conditions people face, carried by peers rather than outside experts, and tend to be more locally appropriate and more durable as a result.

Can I apply positive deviance thinking to my personal life?

Yes. The logic works at any scale. If you're trying to change a habit or navigate a challenge, find two or three people in your real-life environment—with similar constraints—who are already succeeding at it. Ask what a typical day or week actually looks like for them. Look for the specific, small behaviors that explain the difference. Then try one.

Why is it called "deviance" if it's a good thing?

The word is being used in its statistical sense: a deviation from the average or norm. A positive deviant deviates upward—their outcomes are measurably better than the group average despite having the same resources. There's no moral judgment in the term. It simply describes an outlier whose divergence from the norm is beneficial rather than harmful.

What are the main steps in a positive deviance inquiry?

The core process involves defining the problem precisely, identifying positive deviants within the same community, studying their specific behaviors, facilitating community-level discovery of those behaviors through direct experience rather than presentations, and enabling social spread through peer modeling. Critically, the discovery process happens within the community—it isn't handed to it from outside.

Has positive deviance been used successfully in healthcare?

Yes. Hospitals have used the approach to tackle hospital-acquired infections, improve hand hygiene compliance, and reduce preventable medical errors. In documented cases, identifying units with unusually low infection rates and studying their practices—then spreading those practices laterally—produced meaningful improvements where top-down protocol mandates had not.

How do you know you've found a positive deviant and not just a lucky outlier?

Look at behaviors, not just outcomes. A positive deviant's success is explained by specific, learnable practices—not luck, exceptional talent, or hidden resources. If you can identify what they're doing, and other people in the same context can replicate it and get similar results, you've found a genuine positive deviant rather than a statistical fluke.

Is positive deviance the same as positive psychology?

They're related in spirit but different in scope. Positive psychology is a branch of psychology that studies well-being, strengths, and flourishing as fields of inquiry. Positive deviance is a change methodology for finding and scaling outlier behaviors within a specific community facing a specific problem. Positive psychology informs theory; positive deviance is a practical discovery framework.

Are there limitations to the positive deviance approach?

Yes. It works best when the gap between those who succeed and those who struggle is behavioral—when what people do, not just what they have access to, explains the difference. It's less effective when the real barrier is structural: lack of resources, systemic inequality, or policy failures that behavioral change alone can't overcome. It also requires genuine community engagement, which takes real investment.

Can organizations use positive deviance for internal change?

Absolutely. Companies and institutions have used it to identify high-performing teams, understand who adapts well to change and why, reduce turnover, and improve safety records. The principle holds: find people within the organization who are doing well under the same conditions as those who are struggling—then study their actual practices, not their personalities.

Reviewed by The Positivity.org Editorial Team · Last updated April 15, 2026

Sources & Further Reading

• Pascale, R., Sternin, J., & Sternin, M. (2010). The Power of Positive Deviance: How Unlikely Innovators Solve the World's Toughest Problems. Harvard Business Press.
• Sternin, J. & Choo, R. (2000, January–February). "The Power of Positive Deviancy." Harvard Business Review, 78(1), 14–15.
• The Positive Deviance Initiative, Tufts University. positivedeviance.org