Answer:
benchmarking
Step-by-step explanation:
Benchmarking refers to the process by which the PR firm will evaluate how effective the campaign was by comparing the awareness among students before the campaign was launched (pre-test) and after the campaign finished (post-test).
Benchmarking is usually carried out to determine certain qualities of a company's products or services compared to their competition's products or services. But it can also be done to measure the performance of a service by comparing the before status versus the after status of the customers.