Participant characteristicsa | Interviewsb | Focus groups c |
---|---|---|
Trial managers | 3 | 7 |
Chief or principal investigators | 5 | |
Data collectors | 2 | |
Quality assurance staff | 2 | |
Statisticians | 2 | |
CTU Directors or other senior staff | 3 | |
Sponsors | 2 | |
Patient and public representatives | 6 |