For claim 'Phone call reminders three days to one day before PCP appointment day reduce no-shows by 2.5% among adults with chronic illnesses living in medically underserved areas in eight weeks.'

IV: Phone call reminders one to three days prior to day of PCP appointment

DV: No-shows

S: Adults with chronic illnesses living in medically underserved areas

R: Reduce no-shows by 2.5%

For study participants, what recruitment strategy should I use?

What variables should be included in the study?

What are the outcome and predictor variables and what levels or measurement should be used for the variables?