Group 1: Paper Only (n=335)		Group 2: Paper to Web (n=335)		Group 3: Paper to Mail (n=335)		Group 4: Web/Paper Option (n=334)
Communication	Timing	Communication	Timing	Communication	Timing	Communication	Timing
Prenotification	Day 0	Prenotification	Day 0	Prenotification	Day 0	Prenotification	Day 0
Paper Survey	Day 3	Paper Survey	Day 3	Letter Web Invite	Day 3	Paper Survey with Web Option	Day 3
Reminder Letter	Day 10	Reminder Letter	Day 10	Reminder Letter	Day 7	Reminder Letter	Day 10
Paper Survey	Day 17	Letter Web Invite	Day 14	Reminder Letter with Paper Survey	Day 11	Paper Survey with Web Option	Day 17
Reminder Letter	Day 24	Reminder Letter	Day 18	Reminder Letter	Day 18	Reminder Letter	Day 24