Non-Probability Sampling

Non-Probability Sampling

1. Samples are selected on subjective judgement

2. Inferior alternative to probability sampling

3. Samples are selected on basis of accessibility

4. Used when it is not possible to use probability sampling

   • Due to
     • Time
     • Cost

5. Less stringent method

6. Depends heavily on expertise

7. Samples may not be representative of the population

8. Does not rely on randomization

9. Widely used in

   • Qualitative research
   • Pilot studies
   • Exploratory research

10. Produces a biased result