There is still room for your study at the D2D Research Facility this summer. D2D is for faculty, students and staff from any department to recruit from among 2 million fairgoers for on-site, human-subjects research. Average enrollment in 2019 was 162 participants per half-day shift (range 22-412). One-quarter of enrollees live outside the 11-county metro. A ten-minute online application is due March 2.