Pedestrian Gratitude at Crosswalks: Evaluating Prompting Techniques to Increase the Frequency of Positive Communication

Undergraduate research assistants evaluated pedestrian-vehicle communication by observing whether pedestrians using a designated crosswalk waved a sign of gratitude to drivers who stopped for them. Throughout a Baseline and two Intervention phases, a primary observer, a reliability observer, and a third observer with a tally clicker collected these data.