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A how-to guide to design and develop your arm schedule template 

Things to consider:

1. Develop an encounter schedule for each arm of your study.

    These

    For each encounter these include:

   1. On what day should the encounter occur?

   2. At what time should the encounter start? 
   3. How long should the encounter window stay open? 
   4. Should the encounter repeat? If so, how many days, weeks? 

Case Example: 1-month physical activity study with daily lottery incentive for meeting goal of >10,000 steps

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• Welcome to study message
  • Start: Day 0
  • Time: 12 am (as soon as the participant is started in the arm)
  • Length of window: immediately close out
  • Repeat: never
  • Message:  

...

See example as a guide: 

...

• • PARTICIPANT, welcome to the Fitbit study! Thank you for enrolling. 
    
    
• Daily step count from Fitbit
  • Start: Day 0
  • Time: 12 am (as soon as the participant is started in the arm)
  • Length of window: 12 am - 11:59 pm (all day)
  • Repeat: daily- every 1 day, 30 times 
  • Compliance: If participant walks > 10,000 steps, mark as compliant 
    
    
• Daily lottery 
  • Start: Day 1
  • Time: 11 am 
  • Length of window: immediately close out
  • Repeat: daily- every 1 day, 30 times 
  • Feedback: if participant was compliant the previous day (i.e. met their step goal), then make them eligible for the lottery 
  • Message: 
    • eligible winner: You met your step goal yesterday and won AMOUNT in the lottery!
    • eligible loser: You met your step goal yesterday, but did not win the lottery this time.  Keep up the good work! 
    • ineligible winner: Had you met your step goal, you would have won AMOUNT in the lottery.
    • ineligible loser: Had you met your step goal, you would not have won the lottery this time. 
      
      
• Mid point survey

  • Start: Day 15
    

  • Time: 11 am 

  • Length of window: 14 days 
  • Repeat: never
  • Feedback: if participant completes the survey, pay out $50 

  • Message:Hi PARTICIPANT, please click the following link to complete the mid-point survey! You have until END_DATE to complete the survey.  SURVEY_LINK

     

• Mid point survey reminder

  • Start: Day 18

  • Time: 11 am 

  • Length of window: immediately close out 

  • Repeat: daily- every 2 days, 3 times 

  • Feedback: if participant completes the survey then don't send reminder, otherwise send reminder 
    Message: Please rememeber to log into the Fitbit study to complete your mid-point survey!