Final answer:
The measure that will most likely show poorest performance for a firm in terms of basic service is customer satisfaction. Other measures that can indicate poor performance include customer complaints and repeat customer rate.
Step-by-step explanation:
The measure that is most likely to show the poorest performance for a firm in terms of basic service is customer satisfaction. Customer satisfaction measures the extent to which customers are happy with the service provided by a firm. If a firm is not providing quality service, customers are likely to be dissatisfied and their feedback will reflect this poor performance in terms of customer satisfaction.
For example, if a restaurant consistently receives negative reviews from customers regarding the quality of their food and the level of service, it indicates that the firm is performing poorly in terms of basic service. The customer satisfaction scores for such a restaurant would be low, reflecting the poor performance.
Other measures that can indicate poor performance in basic service include customer complaints and repeat customer rate. A high number of customer complaints suggests that the firm is not meeting customer expectations and needs improvement in its basic service. Similarly, a low repeat customer rate indicates that customers are not satisfied with the service and are unlikely to become loyal customers.