Zusammenfassung der Ressource
Sampling
- Opportunity
- Whoever happens to go past
- Lots of unconscious bias
- Attractive
- Owe you a favour
- People in this sample like to help
- Random
- Everyone from targer population has same chance of being used
- Names in a hat is usual method
- Not everyone chosen will want to take part
- Have to replace, not as random
- Volunteer
- Quick and easy
- Not typical members of population
- Helpful
- Where ad is placed, get certain type of people
- Students