Kohlberg (1969) questioned a sample on their solutions and reasonings behind their solutions to a series of moral dilemmas. Kohlberg used their answers to develop the 'stage theory of moral development' - he subsequently sorted the participants into the stages he created.
Kohlberg's stage theory of moral development has 3 levels and 6 stages:
Level 1 - pre-conventional morality (stages 1 and 2); morality is based on the consequences of actions i.e punishment and reward.
Level 2 - 'conventional morality' (stages 3 and 4); obedience for social approval and maintaining social order.
Level 3 - 'post conventional morality' (stages 5 and 6); rules are challenged if they infringe on the rights of others and individuals have a personal set of ethical principles.
Stage 1 - 'punishment orientation'; rules are obeyed to avoid punishment
Stage 2 - 'instrumental orientation'; rules are obeyed for personal gain
Stage 3 - 'Good boy/girl orientation'; rules are obeyed for approval.
Stage 4 - 'Maintenance of the Social Order'; rules are obeyed to maintain social order.
Stage 5 - 'morality of contract and individual rights'; rules are challenged if they infringe on the rights of other
Stage 6 - 'morality of conscience'; Individuals have a personal set of ethical principles