The product managers and developers for MovingAway.com have spent considerable effort to improve the responsiveness of the website. Now, they're trying to determine the best way to measure the performance of the site. What's one factor they should consider in choosing responsiveness metrics?

Using real-world results instead of lab-testing results is correct because actual user interactions capture the true performance of MovingAway.com across different devices, network conditions, and locations. Measuring responsiveness with real-world data ensures that improvements reflect genuine user experiences rather than idealized laboratory conditions, providing more accurate insights for optimizing site performance.