Using observational data typically involves tracking which of the following?

The focus of using observational data is on capturing real-time behaviors and interactions. This approach allows event organizers to understand how participants engage with various elements of the event. Tracking vendors visited and dollars spent offers tangible insights into purchasing behaviors and preferences, revealing which vendors attract attention and generate revenue. This information is crucial for evaluating the effectiveness of vendor presentations and overall attendee experience during the event.

Other options, while they may seem relevant, do not encompass the breadth of what observational data can offer. For instance, only tracking session attendance does not provide insight into attendee interactions outside of sessions. Similarly, while web engagement and user feedback are important metrics for evaluating an event’s online presence and attendee satisfaction, they do not directly reflect in-person behaviors and spending patterns. By concentrating on vendor interactions and financial transactions, you gain a richer understanding of participant engagement and the economic impact of the event.