Kohlberg expanded on piaget's theory by developing a theory of stages of moral judgment. children of the early-school-age period (4 to 6) are most likely to be at which level

These children are most likely to be at the preconventional stage of moral judgement. This means that they choose if something is right or if it is wrong based on what authority figures say and think, instead of what they themselves say and think. They have not yet developed complex moral reasoning.