What is Kohlberg's theory of moral development?
Lawrence Kohlberg's theory of moral development describes six stages of moral reasoning, from obedience for fear of punishment to universal principles of justice. Applied to crime, it holds that those stuck in the early stages judge their acts by punishment and self-interest, not by the harm they cause.
Heinz's wife is dying. A drug exists that would save her, but the pharmacist sells it at ten times what it costs and Heinz cannot pay. Should he steal it? The question —the Heinz dilemma— does not seek a yes or a no. Lawrence Kohlberg did not care about the answer, but about the reasoning: why you think it is right or wrong. And in that "why," he discovered, a whole ladder of moral development is hidden.
Moral development at a glance
- Author
- Lawrence Kohlberg (building on Jean Piaget)
- Era
- From 1958
- Family
- Psychological · developmental
- Idea
- Morality matures in stages; the offender stayed on low rungs
3 levels · 6 stages: preconventional → conventional → postconventional// OriginKohlberg, Piaget and the moral ladder
Building on the steps of Jean Piaget, Kohlberg (from 1958) proposed that morality matures through fixed stages, in three levels. In the preconventional (that of the young child) right and wrong are external: what gets me punished is wrong and what suits me is right. In the conventional, the approval of others and respecting law and order matter. And in the postconventional, the highest and rarest, morality becomes principle: justice and conscience above even the law.
The criminological application is direct: on average, those who offend reason at lower stages than their non-offending peers —a delay in moral development—. It is not that they are "bad" in the abstract: it is that they still solve dilemmas like a six-year-old, with the question "what do I gain and will I get caught?", without having climbed to the rungs where the other person and principle appear.
Not wickedness: a missing rung
Kohlberg's offender did not choose evil from the moral summit: they got stuck at the bottom. They see only two things —the punishment to avoid and the benefit to gain—; they never climbed to the rungs where good is approval, the law or, higher up, conscience. That is why the lever is not only to punish: it is to help them climb, to reason by taking the other's perspective.
The moral ladder, rung by rung
- 1PreconventionalRight and wrong are external: what gets me punished is wrong, what suits me is right
- 2ConventionalThe approval of others and respecting law and order matter
- 3PostconventionalJustice and conscience on principle, above even the law
- 4DelayOn average, the offender reasons at lower rungs than their peers
But reasoning well does not guarantee acting well: between judgment and conduct lies an abyss.
// In fictionStuck on the first rung
Fiction overflows with first-rung reasoners. Joffrey is the preconventional crowned: king before his time, he measures right and wrong by the single yardstick of "I am the king, who is going to punish me?" —power without conscience—. Biff is his schoolyard version: a bully whose entire morality fits in "I take it if I don't get caught." Freezer carries the same logic to cosmic scale: he razes planets out of convenience, with the serenity of one who never conceived that the other might count. And Kefka is rung zero: the one who, having climbed to no rule, finds in destruction a game with neither sense nor brake.
Four moralities halted at "what do I gain and will I get caught?": the throne, the schoolyard, the empire and the void.
// The other critiqueWhat if we feel first?
The most modern objection to Kohlberg's edifice does not come from criminology, but from moral psychology. Jonathan Haidt proposed social intuitionism: faced with a dilemma, we first feel a gut reaction —disgust, indignation, tenderness— and only afterwards do we look for arguments to justify it. Reason would be "the lawyer of the emotions," not their judge. If so, Kohlberg measured above all moral eloquence —the skill of arguing—, not what really drives conduct. It fits an uncomfortable fact for the theory: many offenders, and even psychopaths, reason through dilemmas quite normally; what fails them is not knowing what is right, but feeling it.
// From theory to programTeaching the offender to reason
Despite everything, the idea that morality develops gave rise to real interventions. John Gibbs and his collaborators created the EQUIP program, which combines the discussion of dilemmas (climbing rungs of reasoning) with training in social skills and the dismantling of cognitive distortions —those neutralizations that shield antisocial conduct—. The key to the shift is to take on board the abyss between judgment and action that sank the classic version: it is not enough to make someone reason better; that reasoning must be joined to empathy and to practice. Programs that only debate ideas barely change conduct; those that also train people to put themselves in the other's place and to resist excuses do reduce reoffending in some young people. Kohlberg was half right: morality is cultivated, but not only in the head.
// CriticismsThinking well or acting well?
The biggest crack: reasoning well is not acting well. Many people solve the Heinz dilemma brilliantly and then lie, steal or hit —and vice versa—. That abyss between judgment and conduct sinks much of the criminological application. Moreover, Carol Gilligan charged that Kohlberg built his ladder with samples of males only and rewarded an "ethic of justice" over the "ethic of care," biasing the model. And the high stages smell of Western individualism: outside that context, almost no one "scores" postconventional. The correlation with crime, besides, is modest and gets confounded with verbal intelligence or social class.
The ladder that dominated moral psychology
For nearly three decades, Kohlberg's model was moral psychology: it was taught in universities, inspired values education and its "just communities" in schools, and gave rise to rehabilitation programs with offenders. Its insistence on measuring the reasoning and not the answer was a methodological revolution. Then came the cracks —Gilligan's gender bias, Haidt's emotional turn— that dethroned it without erasing it: today it survives qualified, more as one piece than as the whole edifice.
- 1958Kohlberg's doctoral thesis proposes the stages of moral judgment.
- 1982Gilligan (In a Different Voice) denounces its gender bias.
- 1995Gibbs et al. create the EQUIP program for juvenile offenders.
- 2001Haidt proposes social intuitionism: we feel first, then reason.
// Why it mattersTeaching them to climb
Its educational promise is real: if morality develops, it can be cultivated —with dilemma debate, perspective-taking games, programs that make people reason by putting themselves in the other's place—, and there is evidence that stages rise. But with humility: since thinking well is not enough to act well, the goal is not to manufacture good arguers, but to build the bridge between what someone is capable of reasoning and what they really do. Climbing the ladder helps; truly walking it is another matter.
Lights and shadows
- First rigorous and measurable model of moral development: it measures reasoning, not the answer.
- Replicated finding: the offender reasons, on average, at lower stages (Stams meta-analysis, 2006).
- Gave rise to real interventions: moral education, "just communities," the EQUIP program.
- Destigmatizes: it speaks of a delay in development, not of an essential wickedness.
- Judgment-conduct abyss: reasoning well does not equal acting well (and vice versa).
- Gender bias (Gilligan: the "ethic of care") and cultural bias (Western individualism).
- Haidt: we feel first, then argue; it would measure moral eloquence, not conduct.
- Its correlation with crime is modest and gets confounded with verbal intelligence or social class.
Three key takeaways
- Moral development (Kohlberg): morality matures in 6 stages and 3 levels (preconventional, conventional, postconventional); it is measured by the reasoning faced with dilemmas, not by the answer.
- Application: on average, those who offend reason at lower stages (preconventional: punishment and self-interest) than their peers —a delay, not an essential wickedness—.
- Criticisms: reasoning well is not acting well (judgment-conduct abyss), gender bias (Gilligan) and cultural bias, and a modest correlation with crime.
Sources · further reading
- Kohlberg, L. (1984). The Psychology of Moral Development. Harper & Row.
- Piaget, J. (1932). The Moral Judgment of the Child (orig. Le Jugement moral chez l’enfant).
- Gilligan, C. (1982). In a Different Voice. Harvard University Press.
- Stams, G. J. et al. (2006). “The Moral Judgment of Juvenile Delinquents: A Meta-Analysis”. Journal of Abnormal Child Psychology, 34(5).
- Haidt, J. (2001). “The Emotional Dog and Its Rational Tail”. Psychological Review, 108(4).
- Gibbs, J. C. et al. (1995). The EQUIP Program. Research Press.
// Test the theoryWhich of these villains does KRIMINIS analyse with Moral development?
Theory questionsFrequently asked questions
What is Kohlberg's theory of moral development?
Lawrence Kohlberg's theory of moral development describes six stages of moral reasoning, from obedience for fear of punishment to universal principles of justice. Applied to crime, it holds that those stuck in the early stages judge their acts by punishment and self-interest, not by the harm they cause.
Who developed moral development theory, and when?
Lawrence Kohlberg, starting with his 1958 doctoral dissertation at the University of Chicago, “The Development of Modes of Moral Thinking and Choice in the Years 10 to 16”, which followed in the footsteps of Jean Piaget (The Moral Judgment of the Child, 1932). He gathered his theory in The Psychology of Moral Development (1984).
Is Kohlberg's theory still valid? What is it criticised for?
It has been qualified. Its main flaw is that reasoning well does not mean acting well: many people solve dilemmas brilliantly and then lie or steal. Carol Gilligan exposed its gender bias, since it was built on male samples, and Jonathan Haidt argued that we feel first and argue later. Its correlation with crime is also modest.
What is the Heinz dilemma?
It is the dilemma Kohlberg used to measure moral reasoning. Heinz's wife is dying, a drug exists that could save her, but the pharmacist charges ten times what it costs to make and Heinz cannot afford it. Should he steal it? Kohlberg did not care about the yes or no, but about the reasoning behind the answer.