Recruitment strategies: pros and cons
| Recruitment method | Representative of a larger population? | Sampled from definable pool | Application of standard methods for calculation of sample size | Cost |
|---|---|---|---|---|
| Population based | Yes | Yes | Yes | Expensive |
| Purposive recruitment | Targets subjects with specific characteristics | No | No | Inexpensive |
| Convenience sampling | No | No | No | Inexpensive |