Moral development theory
Moral reasoning can be organized by the justification used for a judgment.
Theory The classification describes how this account is used here; it is not an evidence rating.
Central claim
Moral reasoning develops through structured levels of justification that shift from avoiding punishment and seeking self-interest toward maintaining social order and applying self-chosen ethical principles.
Proposed mechanism
The proposed progression moves from consequences for the individual toward social rules and, in some reasoning, more general principles. The explanation for a decision matters more than whether a person says yes or no.
Evidence: (Spielman et al., 2020)
What would it predict?
When the same dilemma is discussed, different justifications should be distinguishable by their structure. Longitudinal evidence is needed to test proposed progression rather than infer it from age groups alone.
An original test formulation derived from the account, not a claim that this exact study was performed.
Evidence and status
The textbook describes Kohlberg's (1958, 1969) moral dilemma interviews and stage classifications, alongside Gilligan's (1982) and later researchers' criticism of restricted early samples and emphasis on justice-focused reasoning over care and actual moral behavior.
Evidence: (Spielman et al., 2020)
Major contributors
Lawrence Kohlberg; later critics and researchers including Carol Gilligan
A selective attribution, not a complete intellectual genealogy or a sole-founder claim.
Apply the explanation
Original teaching scenario
Two people reject cheating: one fears punishment, while the other argues that an agreement must be fair to everyone. The decision matches, but the reasoning differs.
Constructed for learning. This scenario does not report an empirical result.
Common confusion: Moral behavior or agreement with a rule
Kohlberg's stages classify the structure of the justification offered for a dilemma decision, not whether the person chooses yes or no or acts ethically in daily life.
Evidence: (Spielman et al., 2020)
Limits and alternatives
- Reasoning is not identical to moral action. Care, community and culturally situated obligations may be underrepresented; stage scores should not rank whole persons or cultures as morally inferior.
Evidence: (Spielman et al., 2020)
Textbook connection
Direct coveragePsychology 2e: 9.2 Lifespan Theories
This section directly discusses the account presented here. The profile is an original synthesis, not a reproduction of the textbook.
Related explanations
Sources and inspection notes
Checked October 21, 2026. An inspection date is not a publication date. Original experiments described by a textbook are not individually re-audited unless a separate primary source is listed.
- Spielman, R. M., Jenkins, W. J., & Lovett, M. D. (2020). Psychology 2e. OpenStax. https://openstax.org/books/psychology-2e/pages/9-2-lifespan-theoriesTextbook section inspected, October 21, 2026
Supports the introductory account and historical framing. Does not independently verify every original experiment cited by the textbook.