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The Immunity to Change Process, Step by Step

Why a change you truly want keeps not happening, and the step-by-step way Kegan and Lahey take it apart

How does the immunity to change process work?

Immunity to change is a process developed by Harvard researchers Robert Kegan and Lisa Lahey for changes you sincerely want but keep not making. You map four columns: one improvement goal, the things you do or fail to do that work against it, the hidden self-protective commitment those behaviors serve, and the "big assumption" that makes that protection feel necessary. Then you observe the assumption, trace its history and run small, safe tests of it. Evidence for the method is mostly case studies and coaching reports, plus one non-randomized comparison study (2016) in which coached supervisors reported more progress on their goals than a comparison group.

Most advice about change assumes that if you want something enough and plan well, you will do it. Robert Kegan and Lisa Lahey, developmental psychologists at Harvard, kept meeting people for whom that was not true: sincere, capable people who wanted to change how they worked, and did not. In their 2001 Harvard Business Review article and two books (2001 and 2009) they describe why. Alongside the goal, the person holds a second commitment they rarely see, and it is self-protective, not lazy: a commitment to not looking incompetent, to not losing control, to not being disliked. That commitment rests on a "big assumption" held as fact. The goal and the hidden commitment together work like an immune system, keeping things as they are. The process does not try to overpower the immune system. It makes it visible in four columns, then treats the big assumption as something to study: watch it, find where it came from, and test it in small ways. The practices below follow that sequence. The whole map and the design of a test are covered on the Kegan subject-object page; this page covers the other steps, from finding the goal to reading what a test showed and working with a team.

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Every step on this page treats a stuck change as a protective system working as designed rather than as a failure of will. A sincere goal sits alongside an unseen commitment to prevent some feared outcome, and that commitment rests on an assumption held as fact. The steps first make each part visible in turn — the goal, the behaviors, the feeling, the commitment, the assumption — and then treat the assumption as something to study rather than overpower: watch it, find where it came from, test it, and read the results honestly. Change is expected to follow from the assumption losing its hold, not from forcing the behavior.

Why do I keep failing at a change I genuinely want to make?

Kegan and Lahey’s answer is that a sincere goal can be outweighed by a second commitment you hold without seeing it, usually to prevent something you fear, such as looking incompetent, losing control or being disliked. The behaviors that undermine your goal are then not failures of willpower but sensible ways of keeping that second commitment. You can find it by listing what you do instead of pursuing the goal, imagining doing the opposite, noticing the worry that comes up, and rewriting that worry as "I am committed to not…". Their evidence for this explanation comes from consulting and coaching cases rather than controlled trials.

Should I start testing my big assumption as soon as I have found it?

In Kegan and Lahey’s 2001 description, no. Their first step after mapping is to notice and record what does and does not happen because you hold the assumption, specifically without trying to change anything, and their second is to look actively for evidence that it is not always true. They also invite people to write the assumption’s history: when it took hold and what it protected against then. Testing comes fourth. The reason given is that an assumption held as fact shapes what you notice, so watching it first makes it something you can examine instead of something you see through, and makes later tests better aimed.

How do you choose the right goal for an immunity to change map?

Kegan and Lahey’s 2009 book asks for one improvement goal — a "one big thing" — that is important to you, that is about a change in you rather than in others, and that people who know you agree would make a real difference, which is why they recommend asking others for input. A goal that is not important enough uncovers a protective system that does not matter. If you are unsure where to start, the earlier step from their 2001 book helps: write down what you keep complaining about and ask what commitment each complaint implies, keeping the ones you are part of.

How do I know whether a test of my big assumption actually worked?

A test of a big assumption is meant to produce information, not improvement, so it works if it tells you something about whether the assumption is true, false, or true only under some conditions. The practical move is to write down what happened first — how others responded, what you felt — and only afterward what it means for the assumption, because the assumption will otherwise reinterpret the result. Kegan and Lahey also ask you to evaluate the test itself: if it was so cautious that it could not have disproved anything, it was not a real test, and the next one should be a little bolder.

Can a whole team or organization have an immunity to change?

Kegan and Lahey argue that it can. In their 2001 Harvard Business Review article a leadership team that had unanimously agreed a growth plan achieved very little in a year, and discovered it was also committed to preserving its collaborative, noncompetitive culture, which it assumed the plan would break apart. The same four columns apply to a group: a shared goal, shared undermining behaviors, a shared protective commitment and a shared assumption. Their 2009 book advises that members do individual maps first, and practitioners stress that the group needs enough safety for people to name real fears rather than polite reasons.

Come scegliere tra queste?

The steps run in order, so the question is usually where you are. If you cannot yet say what you want to change, start by turning complaints into commitments, then choose one goal with input from others. If you have a goal and keep failing at it, list what you do instead, fill the worry box and name the commitment you are protecting. If you already know your big assumption, resist testing it at once: watch it for a week or two and write its history first. If you have just run a test, debrief it before designing the next. And if the stuckness belongs to a group, have people map individually before mapping together.

Cosa questi approcci non risolvono

The evidence for immunity to change is thinner than its reputation. The authors’ support is their own consulting and case experience. The one quantitative study found (Markus, 2016) compared 45 coached supervisors with 25 others in the same company, without random assignment, and measured self-reported progress. Other published work is qualitative: a single-participant case study (Helsing et al., 2008), interviews with eight coaches (Reams & Reams, 2015) and a practitioner field report (Reams, 2009). No randomized trial has been found, and no study isolates individual steps. The test-and-review logic resembles behavioral experiments in cognitive therapy, but that evidence is borrowed by analogy. The process can also surface painful material, which is a reason to do it with support.

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How does the immunity to change process work?

Immunity to change is a process developed by Harvard researchers Robert Kegan and Lisa Lahey for changes you sincerely want but keep not making. You map four columns: one improvement goal, the things you do or fail to do that work against it, the hidden self-protective commitment those behaviors serve, and the "big assumption" that makes that protection feel necessary. Then you observe the assumption, trace its history and run small, safe tests of it. Evidence for the method is mostly case studies and coaching reports, plus one non-randomized comparison study (2016) in which coached supervisors reported more progress on their goals than a comparison group.

Come funziona «Turn a complaint into the commitment underneath it»?

Kegan and Lahey observe that people complain only about things they care about, so a complaint is a commitment stated in a frustrated, outward-facing form. Their 2001 book names this as the first of seven shifts in language, from complaint to commitment, and their HBR article opens the diagnosis with the same two questions. Rewriting the complaint as a commitment turns attention from what others should do to what you want, which is the raw material for a goal you can own.

Come funziona «Choose your "one big thing" with input from others»?

In Immunity to Change (2009) the first column holds "one big thing": a single improvement goal, identified with feedback from others. Kegan and Lahey stress that if the goal is not important enough, and not about a change in you, the map uncovers a protective system that does not matter and the exercise is wasted. Asking others both checks that the goal is worth the effort and catches improvements you cannot see from inside.

Come funziona «List what you do instead, without trying to fix it»?

The second column asks what you are doing, or not doing, that keeps your commitment from being realized. Kegan and Lahey ask for concrete, specific behaviors so that later you can see why they make sense. Their 2001 book names the usual response to this list — a "New Year’s resolution" to stop — as the language to move away from, because a resolution attacks the behavior while leaving the reason for it untouched.

Come funziona «Fill the worry box: imagine doing the opposite»?

If the behaviors you listed were simply bad habits, imagining their opposite would feel like relief. Kegan and Lahey ask you to imagine it and notice discomfort, worry or vague fear instead. That feeling is the first visible sign of what the behaviors protect against. Their 2009 book calls the place you record it the "worry box", and it is filled from feeling rather than reasoning, because the protection operates below argument.

Come funziona «Rewrite the worry as what you are committed to preventing»?

Kegan and Lahey’s final diagnostic question is: by engaging in the undermining behavior, what worrisome outcome are you committed to preventing? Rewriting a passive fear as an active commitment changes what the second-column behaviors mean. They stop looking like failures of will and start looking like sensible actions in service of a second goal. The authors call these competing commitments a natural form of self-protection rather than a weakness, which is what makes them possible to look at honestly.

Come funziona «Watch your big assumption at work before you test it»?

Big assumptions are held as fact, so they shape what you see: you attend to evidence that fits them and miss evidence that does not. In their 2001 article Kegan and Lahey ask people first to notice and record what does and does not happen because they hold the assumption, specifically without trying to change anything, and then to look actively for experiences that cast doubt on it. Observation comes first so the assumption becomes something you watch rather than something you see through.

Come funziona «Write the biography of your big assumption»?

Kegan and Lahey invite people to become "biographers" of their big assumptions: how and when the assumption first took hold, how long it has been around, and its turning points. They report that this usually leads to earlier life experiences, before the current job and relationships, and that seeing the assumption was formed for another time and place makes its foundations look less solid. The history does not disprove the assumption; it loosens its claim to be simply how things are.

Come funziona «Read what your test actually showed»?

A test is only as useful as the data you take from it. The Minds at Work test handout asks you to record what you observed, both how others responded and how you felt, and only then what it tells you about the assumption. Reams’s report on the 2009 book notes its warning against letting interpretation sneak into the observations. Keeping the two apart stops the assumption from quietly rewriting the result, and Kegan and Lahey’s final step is to evaluate both the results and the test itself, then design the next one.

Come funziona «Map a team’s collective immunity to change»?

Kegan and Lahey argue that teams, departments and whole organizations can hold the same structure as a person: a shared goal, shared behaviors that undermine it, and a shared commitment protecting something the group values. In their HBR example a leadership team that had agreed a growth plan discovered it was also committed to preserving its noncompetitive, collaborative spirit, and assumed the plan would destroy it. Seeing both commitments let the group work on the real conflict rather than on its stated excuses.

Why do I keep failing at a change I genuinely want to make?

Kegan and Lahey’s answer is that a sincere goal can be outweighed by a second commitment you hold without seeing it, usually to prevent something you fear, such as looking incompetent, losing control or being disliked. The behaviors that undermine your goal are then not failures of willpower but sensible ways of keeping that second commitment. You can find it by listing what you do instead of pursuing the goal, imagining doing the opposite, noticing the worry that comes up, and rewriting that worry as "I am committed to not…". Their evidence for this explanation comes from consulting and coaching cases rather than controlled trials.

Should I start testing my big assumption as soon as I have found it?

In Kegan and Lahey’s 2001 description, no. Their first step after mapping is to notice and record what does and does not happen because you hold the assumption, specifically without trying to change anything, and their second is to look actively for evidence that it is not always true. They also invite people to write the assumption’s history: when it took hold and what it protected against then. Testing comes fourth. The reason given is that an assumption held as fact shapes what you notice, so watching it first makes it something you can examine instead of something you see through, and makes later tests better aimed.

How do you choose the right goal for an immunity to change map?

Kegan and Lahey’s 2009 book asks for one improvement goal — a "one big thing" — that is important to you, that is about a change in you rather than in others, and that people who know you agree would make a real difference, which is why they recommend asking others for input. A goal that is not important enough uncovers a protective system that does not matter. If you are unsure where to start, the earlier step from their 2001 book helps: write down what you keep complaining about and ask what commitment each complaint implies, keeping the ones you are part of.

How do I know whether a test of my big assumption actually worked?

A test of a big assumption is meant to produce information, not improvement, so it works if it tells you something about whether the assumption is true, false, or true only under some conditions. The practical move is to write down what happened first — how others responded, what you felt — and only afterward what it means for the assumption, because the assumption will otherwise reinterpret the result. Kegan and Lahey also ask you to evaluate the test itself: if it was so cautious that it could not have disproved anything, it was not a real test, and the next one should be a little bolder.

Can a whole team or organization have an immunity to change?

Kegan and Lahey argue that it can. In their 2001 Harvard Business Review article a leadership team that had unanimously agreed a growth plan achieved very little in a year, and discovered it was also committed to preserving its collaborative, noncompetitive culture, which it assumed the plan would break apart. The same four columns apply to a group: a shared goal, shared undermining behaviors, a shared protective commitment and a shared assumption. Their 2009 book advises that members do individual maps first, and practitioners stress that the group needs enough safety for people to name real fears rather than polite reasons.

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