The theory of moral development began with an investigation into moral reasoning that explored the ability to make moral judgments through the presentation of a series of dilemmas before which the subjects interviewed were tried to reason individually.
Moral dilemmas are accounts of situations, generally hypothetical, that present a conflict of values and the need to make a decision before him.
These are qualitative and production questionnaires, because the interviewee must create their own judgments and arguments.
The answer is: The development of a theory of the mind.
