Copenhagen Burnout Inventory: how it differs from the Maslach (MBI)

The Copenhagen Burnout Inventory and the Maslach Burnout Inventory both claim to measure burnout, but they sort it by completely different categories. The Maslach asks what the exhaustion looks like inside one person: tired, cynical, ineffective at the work. The CBI asks where the exhaustion is located: in the person's general life, in their job specifically, in their work with the people they serve. That category difference is the reason researchers pick one or the other for a study, and the reason anyone trying to self-assess should know which question they actually want answered.

The popular framing of the two as interchangeable online quizzes gets that wrong. They sort the data differently. Picking the one that fits the question being asked is the whole game.

Two instruments, two structures: CBI sorts by where the exhaustion lives, MBI sorts by what the exhaustion looks like

Christina Maslach and Susan Jackson built the MBI in 1981 around three psychological axes: emotional exhaustion, depersonalization, and reduced personal accomplishment. The framework asks what burnout feels like inside a person. Our main piece on burnout recovery walks through the three Maslach axes in detail.

Tage Kristensen and the team at the Danish National Research Centre for the Working Environment built the CBI in 2005 with a different organizing question. Their argument: burnout is most usefully measured as fatigue and exhaustion attributable to different parts of a person's life. So the CBI has three scales sorted by location: personal burnout (general physical and psychological exhaustion), work-related burnout (the same exhaustion attributed to work), and client-related burnout (exhaustion attributed to work with the people one serves).

What the CBI is in one sentence: a 19-item instrument that asks three versions of "how exhausted are you" at three different scopes — personal life, the job itself, the people one serves — and reports each separately. The Maslach asks how someone experiences the exhaustion. The Copenhagen asks where it shows up.

This is the difference that determines which instrument fits which question. A study comparing burnout rates across knowledge workers and frontline service workers will usually reach for the CBI's location-based split. A study tracking the cynicism curve in residents over a training year will usually reach for the MBI.

The copyright wall is the practical difference most readers care about

The MBI is copyrighted by Mind Garden Inc and licensed per-administration. Researchers and institutions pay a fee for each use, and individual users can't take the official MBI and score themselves against the published norms without going through that license. The "free MBI quizzes" circulating online are unauthorized derivatives whose scores the published literature wouldn't recognize as real MBI results.

The CBI is free to use. Kristensen's team released the instrument into the public domain through the Danish National Research Centre for the Working Environment, with the explicit intent that researchers, clinicians, and individual users could administer it without a license fee. That statement appears in the original 2005 paper, not as marketing language layered on top.

For an individual person trying to self-assess, this is the practical difference most readers care about. The CBI lets a curious reader take the actual instrument, score themselves to the actual scoring rules, and read their numbers next to the actual validation sample. Whether the copyright wall matters depends on the use case. For an HR team running a pulse survey across 8,000 employees, the per-administration MBI fee is real money. For a clinician doing intake on individual patients, the CBI removes one friction point. For a researcher publishing in a journal that prefers MBI-normed comparisons, the wall is the cost of doing business.

The three CBI domains: personal, work-related, client-related — and what each one is actually asking

The CBI splits 19 items across three scales. Each item uses a 5-point Likert response that gets converted to a 0-100 score; Kristensen's original paper uses thresholds of around 50 for moderate burnout, 75 for high, and 100 for severe.

Personal burnout (6 items). Asks about generalized exhaustion and fatigue without attributing it to any specific cause. Sample items cover how often someone feels tired, physically worn out, emotionally exhausted. This scale most closely resembles the MBI's emotional exhaustion axis, with one important difference: it doesn't assume work caused the exhaustion.

Work-related burnout (7 items). Asks the same kinds of fatigue questions explicitly attributed to work. "Does your work frustrate you?" "Are you exhausted in the morning at the thought of another day at work?" The gap between someone's personal-burnout score and their work-related score reveals how much of their general exhaustion they attribute to the job versus to other parts of life.

Client-related burnout (6 items). Only relevant for people whose work involves clients, students, patients, or service recipients. Asks whether the work with those people is exhausting, frustrating, or draining. A nurse, a therapist, a high-school teacher, or a customer-support rep would all answer this scale. A back-office software engineer would skip it.

That's the basic shape of Copenhagen Burnout Inventory scoring and interpretation: three separate 0-100 scores, read individually, with attention to the gap between them. The published guidance on how to interpret Copenhagen Burnout Inventory results centers on the gap as much as on any single score.

When the Copenhagen Burnout Inventory fits better than the Maslach (and when it doesn't)

The CBI-versus-MBI question usually comes down to what the user is trying to figure out.

The CBI is the better fit when the user wants to know whether their exhaustion is attributable to work versus the rest of life. The MBI doesn't natively answer that question. It also fits when the user wants to take the actual instrument without paying a per-use fee, when the work involves clients or patients and the dedicated client scale matters, or when a study population mixes client-facing and non-client-facing roles and the researcher wants one measure that works across both with a clean opt-out for the client items. The CBI fits especially well when the decision on the table is whether a job change would help. The personal-versus-work gap is informative there in a way the Maslach's three axes are not.

The MBI is the better fit when the research question centers on cynicism and depersonalization as distinct phenomena rather than as folded-in flavors of work-related fatigue. It fits when results need to be compared to existing literature using MBI norms — most occupational burnout research published before 2005, and a large share of what's been published since. It fits when the personal accomplishment axis matters specifically; the CBI omits it.

For a one-off self-check by a curious individual, the CBI short form (the 7-item work-related subscale used standalone) is often the right starting point. It takes about two minutes and answers the "is my job making me sick" version of the question without requiring the full instrument.

The personal-burnout domain is the part that catches what the MBI can't see

The single most useful thing the CBI does, and the part that justifies taking it even after someone has taken the Maslach, is the personal-burnout scale picks up generalized exhaustion that the person hasn't yet decided to blame on the job.

People in the middle of burnout commonly experience the fatigue before they experience the cognitive attribution. They feel tired all the time, sleep stops fixing it, weekends stop fixing it, and for months they haven't connected this to work. They blame age. They start tweaking sleep hygiene. Maybe it's the kids, the commute, the season changing. The MBI's emotional exhaustion subscale asks them how exhausted they feel about their work, which is the question they can't yet answer cleanly because they haven't yet made the connection.

The CBI's personal-burnout scale asks the antecedent question: how exhausted is the person, full stop. They can answer that one before they've done the attribution work. If the resulting personal-burnout score is high and the work-related score is moderate, the data is suggestive: the job is part of the problem, probably not the whole problem. If both scores are high, the work-life boundary has collapsed, which is itself a finding. If personal is high and work-related is low, something outside the job is the bigger story.

That diagnostic logic is what the structural difference was built for. The CBI is free, in the public domain, and designed to do one thing the most-cited burnout instrument was never designed to do. The cost of taking it is fifteen minutes. The cost of acting on what it says is the part the questionnaire can't help with.

— Sam