Table 1.

Message preference schedules for participant selection.

Preference optiona	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
A	T1b	T2	T3	T4	T5	T6	T7
B	T1/T2	N/Ac	T3/T4	N/A	T5/T6	N/A	T7
C	N/A	T1/T2	N/A	T3/T4	N/A	T5/T6	T7

^aSchedule of text messages to be sent across a week.

^bT: Text.

^cN/A: not applicable.