def is_answered_for_instance?(instance)
			if instance_node = self.instance_node_for_instance(instance)
				# Answered if not empty and > 0
				!instance_node.value.to_s.empty? && instance_node.value.to_i >= 0
			else
				false
			end
		end
def is_answered_for_instance?(instance)
			if instance_node = self.instance_node_for_instance(instance)
				# Answered if not empty and > 0
				!instance_node.value.to_s.empty? && instance_node.value.to_i >= 0
			else
				false
			end
		end
Scale answers are considered answered if they have a value of greater than "0"