Quinn is at the conventional level of moral development. The
conventional level of moral development is the one responsible of an individual’s
way of dealing with their actions and how other people respond to these actions
and how they view it.
I am not sure what context this is in, but great father and great chief could refer to a fatherly figure to Lewis, or it could be a religious reference such as a God/ the Lord?
I believe the answer is:
random sample of the town's population
A mix of participants that reflect your town's makeup
Random sample is needed in order to ensure that the researchers do not obtain only the subjects that is close to them. Mix of participants is needed in order to ensure that the sample population are not taken from group with close similarties in behaviour.