def validate_parent_instance_node(instance_node, child_node)
			!self.node_validations.collect { |node_validation|
				node_validation.validate_instance_node(instance_node, self)
			}.include?(false)
		end
def validate_parent_instance_node(instance_node, child_node)
			!self.node_validations.collect { |node_validation|
				node_validation.validate_instance_node(instance_node, self)
			}.include?(false)
		end
Stop validating at the Question node