136
Participants
Start Date
December 31, 2013
Primary Completion Date
August 31, 2014
Study Completion Date
August 31, 2014
Financial Incentive: Fixed Lottery
Every day of the 91 day intervention period participants will be asked to use each of their biometric devices. A daily lottery will be conducted automatically by the study website. Participants must use each of their two devices daily to be eligible for the lottery the following day. Winning lottery numbers will be identified by a fixed-position match between the automatically generated winning number and a participant ID number, which each participant will pick at enrollment.
University of Pennsylvania, Philadelphia
National Institute on Aging (NIA)
NIH
University of Pennsylvania
OTHER