Which of the following is a valid method to measure the effectiveness of a promotional event?

• A. On-site experiential marketing
• B. Pre/post-event surveys
• C. Co-branded apps
• D. Exclusive content

Answer: (B)

Measuring the impact of a promotional event comes down to comparing attitudes and awareness before and after. Pre/post-event surveys provide a clear baseline and a way to quantify changes in key measures like awareness, recall, brand perceptions, and purchase intent. By asking the same questions at both times, you can calculate lift and determine whether the event moved the needle. Proper design—representative sampling, consistent questions, and precise timing—lets you attribute changes to the event and even segment results to see which groups were most affected.

Other options describe tactics used during or after the event, but they aren’t standardized methods for measuring effectiveness. On-site experiences aim to create engagement; co-branded apps serve as engagement or data-collection tools, and exclusive content functions as an incentive. While valuable for interaction and reach, they don’t by themselves provide the structured measurement framework that pre/post-event surveys offer.