According to the cognitive-developmental perspective, young children's reasoning about moral problems change with development as they construct concepts about justice and fairness from their interactions in the world.

This is an accurate description of the cognitive-developmental perspective on moral development in young children. As children interact with others and experience situations that involve different moral dilemmas, they gradually construct more sophisticated concepts of justice and fairness that guide their reasoning and decision-making. This process is driven by cognitive maturation and social experiences, and it is typically characterized by a sequence of stages or levels that reflect qualitative changes in children's moral reasoning.