Table 2.

Weekly reimbursement for daily surveys^a.

		Week 1 compensation (US $)	Week 2 compensation (US $)	Week 3 compensation (US $)	Week 4 compensation (US $)
Reimbursement for daily surveys
	<25% completion	5	5	5	5
	25%-49% completion	10	10	15	15
	50%-74% completion	25	25	30	30
	75%-89% completion	35	35	45	45
	>90% completion	40	40	50	50
Reimbursement for biosensor bracelet wearing
	Full compliance (US $5 per day)	0-35	0-35	0-35	0-35

^aTotal possible compliance is US $450.