 Experimental philosophy is an approach to philosophy that explicitly draws on experimental knowledge established by the sciences to address philosophical questions (see the entry on  experimental moral philosophy).  There are three significant ways in which experimental philosophy has played an important role in discussions of moral relativism. These concern the extent to which there is moral disagreement or moral diversity among people (that is, DMR), the extent to which folk morality is committed to an objectivist or relativist understanding of moral judgments (that is, the views of ordinary people concerning MMR), and the extent to which acceptance of moral relativism affects moral attitudes such as tolerance (that is, ways in which views concerning MMR causally influence whether or not people have tolerant attitudes).