9 hypothetical moral dilemmas,each presenting a conflict between 2 moral issues.
Each pp discussed 3 of these dilemmas,prompted by a set of 10 or more open-ended questions
'Should Heinz steal the drug?Why or why not?'
If the respondent favours stealing:'If Heinz doesnt love his wife,should he steal the drug for her?Why or why not?'
Suppose the person dying is not his wife but a stranger.Should Heinz steal the drug for the stranger?Why or why not?
Answers were analysed and common themes were identified so the stage theory was constructed.
Re-interviewed every 3 years