Searching for "Colbert," "Coberg," or "Kolberg" Stages? You Mean Kohlberg
Quick disambiguation: There is no "Colbert" or "Coberg" theory of neurodevelopment. The theory you are almost certainly looking for is Lawrence Kohlberg's stages of moral development — a model of how moral reasoning matures, not a model of brain or neurological development. If you actually need a stage theory of cognitive development, that is Piaget (four stages, infancy through adolescence). If you need psychosocial development across the lifespan, that is Erikson (eight stages). All three are compared in the table further down this page.
Kohlberg's model is one of the three classic stage theories that every mental health professional encounters in training, and the one clinicians tend to remember least precisely — partly because, unlike Piaget's and Erikson's frameworks, it almost never appears by name in day-to-day chart documentation. This page is a working clinical reference: the six stages in a quick-scan table, where the theory came from, how it compares to the other classic stage models, where it genuinely shows up in clinical work, its well-documented limitations, and — most practically — how to reference moral-reasoning development in a note without overstating what the model can support.
The Six Stages at a Glance
Kohlberg organized moral development into three levels, each containing two stages — six stages in total. The key insight, and the thing most summaries get subtly wrong, is that stages are defined by the reasoning behind a moral judgment, not by the judgment itself. Two people can reach the same conclusion about a moral dilemma from entirely different stages; what differs is why they think the action is right or wrong.
The classic probe was the Heinz dilemma: a man's wife is dying, a druggist is charging far more for the curative drug than Heinz can pay — should Heinz steal the drug? Kohlberg was not interested in whether participants said yes or no, but in the structure of their justification.
| Level | Stage | Orientation | What drives moral judgment | Typical Heinz-dilemma reasoning |
|---|---|---|---|---|
| Level 1: Preconventional (typically childhood; approximate, not fixed) | Stage 1 | Obedience and punishment | Avoiding punishment; rules are external and absolute | "He shouldn't steal it because he'll go to jail." / "He should steal it or his wife's family will blame him." |
| Stage 2 | Self-interest / instrumental purpose | What benefits me; fair exchange ("you scratch my back") | "He should steal it because he needs his wife." / "He shouldn't — prison is worse for him than her being sick." | |
| Level 2: Conventional (typically adolescence onward; where most adults reason) | Stage 3 | Interpersonal accord ("good boy / nice girl") | Approval of others; living up to relational expectations | "He should steal it because a good husband protects his wife; people would understand." |
| Stage 4 | Authority and social order ("law and order") | Upholding law, duty, and social institutions | "Stealing is against the law, and society falls apart if everyone breaks laws when they have a reason." | |
| Level 3: Postconventional (a minority of adults; Stage 6 largely theoretical) | Stage 5 | Social contract and individual rights | Laws are social agreements that should serve human welfare and can be changed | "The law wasn't designed for this situation — the right to life outweighs the druggist's right to profit." |
| Stage 6 | Universal ethical principles | Self-chosen abstract principles (justice, dignity) that supersede laws | "Preserving human life is a universal principle that justifies breaking an unjust rule." |
Two cautions on reading this table clinically. First, the age bands are approximations, not norms — Kohlberg's model was never standardized as an age-referenced instrument, and the theory holds only that stages occur in an invariant order, not on a fixed timetable. Second, commonly cited estimates suggest only about 10–15% of adults consistently reason at the postconventional level, and Kohlberg himself came to regard Stage 6 as largely theoretical because clear empirical examples were so scarce. Most adults, most of the time, reason at Stages 3–4.
Where the Theory Came From
Lawrence Kohlberg (1927–1987) began the work as a psychology graduate student at the University of Chicago in 1958, deliberately extending Piaget's earlier research on children's moral judgment, and spent most of his subsequent career at Harvard. His dissertation sample was 72 boys from Chicago, ages 10 to 16, interviewed using hypothetical moral dilemmas — the Heinz dilemma being the most famous. Participants' justifications, not their verdicts, were coded into stages.
A longitudinal follow-up tracked 58 of the original participants at roughly three-year intervals over about two decades (reported in the early 1980s by Colby, Kohlberg, and colleagues). The follow-up supported the model's central structural claim: participants moved through the stages in the predicted order, without skipping stages or regressing in any systematic way. That finding is the strongest empirical pillar of the theory — and, as the limitations section below makes clear, the sample it rests on is also the source of the theory's most serious criticisms.
Two measurement traditions grew out of the work:
- The Moral Judgment Interview (MJI) — Kohlberg's own semi-structured dilemma interview, originating in the 1958 dissertation, scored using a detailed manual (Colby and Kohlberg's The Measurement of Moral Judgment). The scoring system is copyrighted published material; clinicians describing the MJI should summarize rather than reproduce its criteria.
- The Defining Issues Test (DIT / DIT-2) — developed by James Rest in 1974 as a standardized, multiple-choice alternative to the labor-intensive MJI. The current version, the DIT-2, is a proprietary instrument administered and scored exclusively through the Center for the Study of Ethical Development at the University of Alabama; users cannot self-score it, and its items must not be reproduced. In practice the DIT is a research and ethics-education tool — widely used in health-professions programs — not an individual clinical assessment.
Kohlberg vs. Piaget vs. Erikson: Which Theory Are You Actually Looking For?
Search confusion between these three theorists is common, and understandable — all three are stage models taught side by side in developmental coursework. They describe different domains of development, and they show up in clinical documentation in very different ways.
| Kohlberg | Piaget | Erikson | |
|---|---|---|---|
| Domain | Moral reasoning — why a person judges actions right or wrong | Cognitive development — how thinking itself changes | Psychosocial development — identity and relational crises |
| Structure | 3 levels × 2 stages = 6 stages | 4 stages (sensorimotor, 0–2; preoperational, 2–7; concrete operational, 7–11; formal operational, 12+) | 8 stages spanning the full lifespan (a 9th later described by Joan Erikson) |
| Span | Childhood through adulthood; upper stages reached by a minority | Infancy through adolescence; ends with formal operations | Birth through late life |
| Signature concepts | Heinz dilemma; preconventional / conventional / postconventional reasoning | Object permanence, egocentrism, conservation, abstract reasoning | Trust vs. mistrust; identity vs. role confusion; generativity vs. stagnation |
| What a clinician typically documents | Rarely a stage number; occasionally a behavioral description of moral reasoning in child, adolescent, or juvenile-forensic contexts | Cognitive level relevant to consent, psychoeducation, and testing interpretation (e.g., "concrete operational thinking; abstract explanations simplified accordingly") | Developmental framing in case conceptualization (e.g., identity-stage tasks in adolescent notes, generativity themes in midlife) |
The relationship among the three is genealogical as well as conceptual: Kohlberg built his moral-reasoning stages directly on Piaget's cognitive framework — a child cannot reason about abstract social contracts before abstract reasoning itself is available — while Erikson's model runs on a separate psychosocial track across the whole lifespan.
Where Kohlberg Actually Shows Up in Clinical Work
Honest answer first: clinicians rarely cite Kohlberg stage numbers in charts. Developmental status in pediatric and adolescent documentation is far more often carried by Piagetian cognitive level, Eriksonian stage, milestone attainment, and standardized instruments. But the model does surface in several real clinical contexts:
Nursing and health-promotion assessment. Kohlberg's stages appear in nursing education and health-promotion documentation frameworks — developmental assessment tables pairing each stage with appropriate nursing actions (for example, explaining rules and consequences concretely to a child reasoning preconventionally). The NCBI Bookshelf nursing health-promotion text linked in the resources below includes exactly such a table.
Ethics education and training. The DIT-2 is used in health-professions programs to study and track moral-reasoning development in trainees. Kohlberg's framework also persists in medical and nursing curricula and licensing-exam content, which is why supervisees and students ask about it.
Pediatric and adolescent communication. The practical payoff of the model in child work is calibration: a child whose rule-following is organized around avoiding punishment needs different behavioral scaffolding — and different psychoeducation for parents — than an adolescent reasoning from peer approval or internalized duty. This thinking pairs naturally with the developmental framing covered in our guides to child therapy documentation and adolescent therapy documentation, and with the developmental-history component of a child behavioral assessment.
Juvenile and forensic contexts — cautiously. Moral-reasoning level is sometimes discussed in forensic and correctional literature as an explanatory construct — for instance, predominantly self-interested (preconventional-style) reasoning discussed alongside cognitive distortions in offender populations, and some correctional programming draws loosely on Kohlbergian ideas. This is conceptual framing, not measurement. A Kohlberg stage cannot establish competency, culpability, or capacity, and no authoritative source supports using it that way in a juvenile forensic evaluation or any other legal context. If moral reasoning is clinically relevant to a forensic question, document the observed reasoning behaviorally and let validated instruments and functional criteria carry the evaluative weight.
The best citable summary of how clinicians should hold all of this comes from peer-reviewed guidance on developmental principles in clinical care (published in Focus, APA Publishing) — guidance whose worked examples use Piaget's and Erikson's models, but whose stated principles apply to classic stage theories generally: development does not unfold as discretely or sequentially as classic stage models describe; stage theories are best used as flexible heuristics; assessment should be individualized across multiple domains; developmental immaturity must be distinguished from pathology; and the classic theories under-address culture and socioeconomic context. That "heuristic, not diagnosis" stance is the correct clinical posture toward Kohlberg's model specifically.
Limitations and Criticisms You Should Know
A clinician who cites Kohlberg without knowing the criticisms is one pointed question away from an uncomfortable supervision moment or cross-examination. The major critiques are well established:
-
Psychometric weakness. An early and influential empirical critique (Kurtines and Greif, 1974, Psychological Bulletin) concluded that the model and its measurement instrument, the Moral Judgment Interview, had weak psychometric support — issues with standardization, reliability, and predictive validity that were never fully resolved for the MJI.
-
Gender bias. Carol Gilligan — Kohlberg's colleague — argued that a theory built on an all-male sample encoded a justice-and-rules orientation as the developmental ideal while undervaluing an ethic of care and relational responsibility more characteristic of women's moral reasoning (In a Different Voice, 1982). Whether men and women actually score differently has been debated since, but the sampling criticism stands on its own.
-
Cultural bias. Snarey's 1985 cross-cultural review found that while the lower stages appear widely across cultures, postconventional reasoning (Stages 5–6) is rarely identified in traditional, non-Western, or collectivist societies — suggesting the upper stages may reflect Western, individualist, educated ideals rather than a universal developmental endpoint.
-
The reasoning–behavior gap. The model measures how people reason about hypothetical dilemmas, not how they behave under real moral pressure. Verbal moral sophistication does not reliably predict moral conduct — a gap with obvious clinical and forensic significance.
-
Stage 6 is essentially theoretical. Kohlberg himself scaled back claims about Stage 6 because clear empirical examples were scarce; some later scoring approaches effectively set it aside.
-
Original sample constraints. Seventy-two boys from one American city, ages 10–16, in 1958. The longitudinal follow-up strengthened the invariant-order claim within that sample, but generalization from it carries all the limitations above.
None of this makes the model useless — it makes it a heuristic with a known error profile, which is exactly how peer-reviewed clinical guidance recommends using stage theories generally.
How to Reference Moral Development in a Clinical Note
The practical question for this site's readers: what can you defensibly write? The governing principles are the same ones that make a good mental status exam — document observations, not conclusions dressed as findings, and never let a theoretical label do work it cannot support.
Appropriate — behavioral description, theory as context:
- "Jayden's stated reasons for following classroom rules centered exclusively on avoiding punishment ('so I don't get in trouble'), with no reference to fairness or others' feelings — consistent with an early stage of moral-reasoning development and developmentally unremarkable for his age."
- "When discussing the incident, client's reasoning emphasized peer approval ('everyone would think I was a snitch') rather than consequences or principles; psychoeducation with parents addressed developmentally typical adolescent sensitivity to peer evaluation."
- "Explanations of the behavior plan were framed in concrete, immediate terms matched to client's current cognitive and moral-reasoning level."
Not appropriate — stage as a test result or forensic finding:
- "Client is at Kohlberg Stage 2." (Presents an unstandardized theoretical construct as a measured finding.)
- "Client's preconventional moral reasoning indicates diminished capacity / supports a finding regarding culpability." (No authoritative basis; the model was never validated for competency, capacity, or culpability determinations.)
- Assigning a stage from age alone, or treating a stage as a fixed trait rather than a description of reasoning observed in a specific context.
If moral reasoning is genuinely central to a referral question — most often in juvenile forensic work — describe the observed reasoning in behavioral detail, use validated instruments for anything evaluative, and cite stage theory only as explanatory background, clearly labeled as such.
The Bottom Line
Kohlberg's stages — frequently searched as "Colbert," "Coberg," or "Kolberg" stages, and sometimes mislabeled as neurodevelopment — describe the development of moral reasoning through three levels and six stages, from punishment-avoidance to (rarely reached) universal ethical principles. For clinicians, the model earns its place as shared vocabulary and a calibration tool for child, adolescent, and ethics-education contexts, provided it is held as a heuristic: no fixed age norms, no diagnostic or forensic authority, well-documented psychometric, gender, and cultural criticisms, and a strict rule that chart language describes observed reasoning rather than assigning stage numbers as findings. When you need the stage theory clinicians actually document from, reach for Piaget (cognition) or Erikson (psychosocial development) — and reach for Kohlberg when the question is specifically why a client believes an action is right or wrong.