Final answer:
The decision-making technique in which people are assigned to express competing points of view is Devil's Advocate. This technique helps the group to consider different perspectives and make more informed decisions.
Step-by-step explanation:
The decision-making technique in which people are assigned to express competing points of view is Devil's Advocate. In this technique, a person is assigned to argue against the prevailing viewpoint or position, challenging assumptions and presenting counterarguments. This helps the group to consider different perspectives and make more informed decisions.