This research was supported by a Federal Title II D Enhancing Education through Technology Program awarded to Barbara Signer by The New York City Department of Education.
With financial assistance from the New York City Department of Health and an insurance company, and with the participation of a significant number of technicians, they carried out a study that is noteworthy for the careful observation.
Improving covariate balance in 2K factorial designs via rerandomization with an application to a New York City Department of Education High School Study